Best Ashes to Diamonds Companies: A Complete Comparison

Losing a loved one is one of life’s most difficult experiences. As we search for ways to keep their memory close, more people are discovering a profoundly beautiful tribute: turning ashes into a diamond. These memorial diamonds offer a lasting way to carry the essence of someone special — transforming grief into something tangible and meaningful.

How we built this comparison: every price, timeline, and policy figure below was pulled directly from each company’s own official website, not from other comparison articles or AI-generated summaries. Where a company’s own site gave inconsistent information across different pages, we’ve said so rather than picking a number that looked cleanest. Company websites change, so treat the figures here as a snapshot and confirm anything that matters to your decision directly with the provider before ordering.

How we chose the companies: this article compares seven providers advertising diamonds made from ashes or hair, using their published information. Disclosure: Saint Diamonds publishes this comparison and is one of the providers included. Our listing appears first; this is not an independent ranking. Compare the same finished diamond size, color, setting and grading options before deciding which service suits you.

Competitor information was last checked on September 15, 2026. Saint Diamonds information was updated on September 30, 2026. Confirm prices, availability and order terms directly before purchasing.

1. Saint Diamonds – Our Own Service (Listed First, Not Ranked)

Overview: Saint Diamonds specializes in creating cremation diamonds that honor both human and pet lives, with a process built around clear communication and a care-first approach through what is, for most families, an emotionally difficult purchase.

What Makes the Company Different: Saint Diamonds’ own site states diamonds are crafted using HPHT (High Pressure, High Temperature) technology, and that ashes from different families are never combined during processing. A classic jewelry setting is included from 0.75 ct and a premium setting from 1.5 ct.

Current Price and Included Diamond Size: Pricing starts at $999 for a 0.15 ct Yellow diamond (finished weight) and runs to $39,900 for a 3 ct Colorless stone across 7 colors. The 0.15 ct and 0.25 ct sizes are offered in Colorless, Blue and Yellow; 0.50 ct and above in all seven colors.

Process and Estimated Timeline: Most diamonds are completed within 4–6 months of receiving your materials. In rare cases, completion and delivery may take up to 12 months from that date. Diamonds are made in Europe, and every order stage is tracked.

Certification and Available Options: Every diamond comes with a Saint Diamonds certificate. Independent IGI grading and a personal inscription are included from 1 ct; IGI grading is optional below 1 ct. GIA grading is available on request. A grading report describes the diamond’s gemological properties; it does not establish whose ashes or hair supplied its carbon. Material identification and handling are documented separately through the provider’s tracking records.

Pros:

• Free standard jewelry setting from 0.75 ct, free premium setting from 1.5 ct
• Free IGI certification at 1 ct+
• Serves both human and pet memorial diamonds

Cons or Limitations:

• Cancellation and refund restrictions apply. The Terms distinguish the Welcome Kit fee from an optional deposit and include specific return, refund and regrowth provisions. Read the current Terms and Refund Policy before ordering.
• Completion usually takes 4–6 months; rare cases can take up to 12 months, including delivery.

Best Suited For: Families considering human or pet memorial diamonds who value published prices and size-based inclusions.

2. Eterneva – Story-Driven, Tech-Forward Process

Overview: Eterneva blends the diamond-creation process with a documented, story-driven client journey, built around video updates through the production timeline.

What Makes the Company Different: Every color and cut is priced the same on Eterneva’s published grid — an unusual structure compared to every other company in this comparison, where color and cut both typically move the price. Clients also receive regular video updates during production, and Eterneva names its production facility (Kerrville, Texas) publicly, which most competitors here do not.

Current Price and Included Diamond Size: $3,499 for a 0.25 ct diamond, any color or cut — the highest entry price of the seven companies researched. A 0.1 ct option exists but has no published price (“call for price”). The grid runs to $75,000 for 5 ct.

Process and Estimated Timeline: Eterneva’s own pages give several different figures depending on which page you read: 8–11 months (pricing page), 8–10 months (ashes-to-stones page), “about eight months” (resources page), and 7–10 months for pet diamonds specifically, with a caveat that pet orders can “sometimes take a year or more.” Budget for roughly 8–11 months as a realistic range.

Certification and Available Options: Eterneva’s own site is internally inconsistent here: its FAQ page states diamonds are sent to IGI for grading, while a separate section of the same FAQ says grading is done in-house by a “GIA-certified gemologist at our Kerrville facility.” We could not resolve which is accurate from the public site — worth asking directly if third-party grading matters to your decision. An optional third-party “Total Carbon Analysis,” to scientifically verify the carbon originated from the submitted remains, is available on request. Notably, Eterneva’s own FAQ states each diamond’s growth cell combines the customer’s submitted carbon with “a microscopic Diamond seed” and additional “generic carbon” — meaning the finished diamond is not composed exclusively of the customer’s own submitted material.

Pros:

• Same price regardless of color or cut choice, simplifying the decision
• Documented, video-updated production journey
• Public production-facility location (Kerrville, TX)
• Combining multiple people’s ashes into one diamond is explicitly supported

Cons or Limitations:

• Highest starting price of the seven companies compared here
• No refund or money-back guarantee published; only a clarity-standard (SI2) regrowth assurance
• Own site gives conflicting information on both timeline and grading lab
• Diamond includes added “generic carbon” and a seed crystal, not exclusively the submitted remains

Best Suited For: Families who want a documented, video-driven experience and don’t mind a premium price point, and who are comfortable with a diamond that includes some added lab carbon alongside their loved one’s material.

3. Lonité – Wide Range of Colors and Cuts

Overview: A Swiss company (Lonité AG, headquartered in Horgen) offering one of the widest published color and cut selections researched here, with production based in Switzerland and representative offices in several countries including the US.

What Makes the Company Different: Lonité publishes a full, granular pricing grid across 7 colors and 10 sizes — more pricing transparency than several competitors, who require a phone call or consultation for a complete price list. It’s also the only company researched that explicitly states there’s no extra fee for combining multiple carbon sources into one diamond.

Current Price and Included Diamond Size: $1,400 for a 0.25 ct diamond in Lonité’s “Naturally Amber” color, Brilliant cut. The full published grid runs to $40,500 for a 3 ct Amber stone (other colors cost more at the same size).

Process and Estimated Timeline: Lonité’s FAQ states 9–12 months, with logistics/shipping time excluded from that estimate; a separate Order Procedure page states production “can take 12 months.” Budget for roughly 9–12 months plus shipping.

Certification and Available Options: An in-house origin and process-analysis certificate is included standard. Third-party IGI certification can be ordered afterward as an optional add-on (no price published); GIA is also mentioned as available. Non-Brilliant cuts may carry a surcharge (amount not published). Engraving on the diamond’s girdle is available, with no published price.

Pros:

• Widest published, itemized pricing grid of the companies compared (no need to call for a quote)
• No fee for combining multiple carbon sources into one diamond
• States the finished diamond uses exclusively the customer’s own submitted carbon
• International offices in multiple countries alongside Swiss production

Cons or Limitations:

• No refund, cancellation, or satisfaction-guarantee policy is published anywhere on the site
• Own site gives two slightly different timeline figures (9–12 months vs. “12 months”)
• Standard payment structure is a 50/50 deposit split; no installment financing plan is advertised
• Sizes above 3 ct require a custom quote rather than published pricing

Best Suited For: Families who want to see full, transparent pricing up front across many color and size combinations without needing to call, and who are comfortable submitting a deposit under a policy with no published refund terms.

4. EverDear – Precision-Focused, In-House HPHT Technology

Overview: EverDear is a US-based provider (official domain everdear.co) built around an in-house-engineered HPHT press and a strict single-order chain-of-custody process.

What Makes the Company Different: EverDear’s own site is candid that “we are not fundamentally different from our peers in this sacred industry” on the underlying science, and instead emphasizes process integrity: its Authenticity Guarantee page states “nothing is ever pooled, combined, or substituted,” backed by per-order tracking (unique order IDs, QR-code routing) and equipment sterilized between every order — among the most specific chain-of-custody claims of the companies researched here.

Current Price and Included Diamond Size: EverDear’s own site is not internally consistent on its lowest price: one page states $895 for a 0.10 ct Yellow diamond, while the homepage banner and another pricing page say “$995.” We’re reporting both since the company’s own site doesn’t agree with itself — worth confirming directly which applies to your order. Pricing runs up to roughly $67,000–$74,000 depending on color at 5.5–6.29 ct.

Process and Estimated Timeline: EverDear’s FAQ states approximately 7–12 months depending on color, cut, and optional services; the homepage separately cites “on average… 11 months.” An order-instructions page explicitly says the company “cannot give you an exact date” — this is presented as a genuine estimate, not a promise.

Certification and Available Options: An in-house Certificate of Authenticity (covering carbon chain-of-custody, the 4Cs, and setting metal) is included in the base price. Third-party IGI certification is available for a stated $250 fee; GIA is also offered as an option, with the fee not published. Laser inscription on the diamond (up to 20 letters) costs $100, waived if you add IGI certification.

Pros:

• Detailed, specific chain-of-custody claims (per-order tracking, no pooling, sterilized equipment between orders)
• Wide size range published (0.10 ct to 6+ ct)
• 15-day cancellation window with full refund, per the company’s own Advantage page
• Proportional refund if the finished diamond weighs less than what was ordered, and an insured-shipping refund if a diamond is lost in transit

Cons or Limitations:

• The company’s own site states two different starting prices ($895 vs. $995) and two different HQ addresses on different pages — worth clarifying directly before ordering
• Surcharge applies for combining multiple carbon-source types (e.g., ashes + hair, or human + pet)
• No founding date published, despite marketing language referencing “20+ years” of underlying technology research

Best Suited For: Families who want a detailed, explicit chain-of-custody process and a published cancellation/refund window, and who don’t mind confirming pricing directly given the inconsistencies on EverDear’s own site.

5. Heart In Diamond – Fast Turnaround, Widest Entry-Price Range

Overview: Founded in the UK in 2005, with a US-facing sales office in Los Angeles and production at what the company describes as a European-based facility, Heart In Diamond offers the widest span of entry price points researched here.

What Makes the Company Different: Heart In Diamond repeatedly emphasizes speed, describing 70–120 days as “the fastest turnaround time in the industry” on its own FAQ — the shortest stated timeline of any company in this comparison. It also offers four different interest-free, in-house payment plans (not third-party financing) and over 500 jewelry-setting options.

Current Price and Included Diamond Size: $750 for a single 0.03 ct Orange-Yellow diamond — the lowest entry price researched — with mini multi-stone sets also available. A quarter-carat (0.20–0.34 ct) stone starts at $2,050 in the same color. The published grid runs to roughly $37,000 for 3 ct+ in premium colors.

Process and Estimated Timeline: Heart In Diamond’s own FAQ states 70–120 days without qualification; a separate process page states 75–120 days “on average” — a small but real discrepancy between two of the company’s own pages. Either way, this is meaningfully faster than most other companies researched.

Certification and Available Options: An in-house Certificate of Authenticity plus a full grading report are included standard. Independent GIA certification is available for a published $100 fee. A note worth flagging directly: if the ashes or hair you provide fall short of the requested amount (2/3 cup ashes and 1/2 cup hair per diamond), the company’s own FAQ states it will add “generic carbon” to make up the difference.

Pros:

• Lowest published entry price of the seven companies compared ($750)
• Shortest stated turnaround (70–120 days)
• Four interest-free, in-house payment plans
• Unlimited combining of ashes/hair from multiple people or pets, at no extra fee

Cons or Limitations:

• No satisfaction or money-back guarantee — the published “lifetime guarantee” explicitly covers manufacturing defects only, and explicitly excludes “change-of-mind” and “buyer’s remorse”
• If your submitted ashes/hair fall short of the requested amount, generic (non-family) carbon is added
• Non-standard cuts (Pear, Emerald, Oval, Marquise) carry a 10–30% surcharge
• We could not locate a US-specific Terms of Service / refund-policy page on the official site during this research

Best Suited For: Families working with a smaller budget or wanting a faster turnaround, who are comfortable with in-house financing and understand the defect-only warranty terms.

6. Algordanza – Known for Natural Blue Diamonds

Overview: A Swiss company headquartered in Domat/Ems, founded in 2004, known for producing naturally blue diamonds from the boron naturally present in human ashes and hair.

What Makes the Company Different: Algordanza is the only company in this comparison whose own site explains the science behind its diamond color: naturally occurring boron in the source ashes/hair produces a natural blue tone, rather than a color applied afterward. Every diamond’s creation is independently witnessed by a qualified gemologist and a Swiss notary, per the company’s own site.

Current Price and Included Diamond Size: Starting at $2,999 for a 0.30 ct diamond. Unlike most competitors, Algordanza does not publish a full pricing grid on its live site — it states a complete price list is available “upon request.”

Process and Estimated Timeline: Algordanza’s own site describes the process as “usually” taking 4–8 months, explicitly framed as a typical range rather than a guarantee; larger diamonds may take longer.

Certification and Available Options: Certification is in-house only — no third-party lab (IGI/GIA) is mentioned anywhere on the official site, a meaningful difference from every other company researched here. Engraving is available, but only on rough (uncut) diamonds, up to 30 characters.

Pros:

• Every diamond’s creation is independently witnessed by a gemologist and a Swiss notary
• Transparent, specific explanation of why its diamonds are naturally blue
• Two structured pre-need payment plans (pay in full, or 50% deposit with the balance due later)

Cons or Limitations:

• No third-party (IGI/GIA) certification option offered — certification is Algordanza’s own in-house documentation only
• No refund or satisfaction-guarantee policy published anywhere on the official site
• Pet cremation diamonds are not handled directly — Algordanza refers pet inquiries to a separate partner company, Semper Fides
• A full, itemized price grid is not published; you must request one directly

Best Suited For: Families who specifically want a naturally blue diamond and value independent, in-person process oversight (gemologist plus notary), and who don’t need third-party (IGI/GIA) grading.

7. LifeGem – Longstanding U.S. Memorial Diamond Brand

Overview: Founded in 2001 and based in Des Plaines, Illinois, LifeGem is one of the original companies in this industry. We independently verified it is still actively operating today — this is not carried over from an earlier version of this article without checking.

What Makes the Company Different: LifeGem has a longer operating history than every other company in this comparison (24+ years), corroborated independently by a Better Business Bureau profile showing A+ accreditation since 2008 with no closure alerts, alongside recent five-star customer reviews.

Current Price and Included Diamond Size: $1,999 for a 0.10–0.19 ct diamond in Colorless or Blue (setting sold separately). Pricing runs up to roughly $32,299+ for 3.00–3.25 ct+ in Colorless or Blue, or $28,599 for Pink/Red at the same top tier.

Process and Estimated Timeline: LifeGem’s own FAQ states the process typically takes about 6 months — among the faster stated timelines in this comparison.

Certification and Available Options: LifeGem states each diamond is “authenticated and identified by world-renowned gemologists” and targets a VVS–VS clarity grade, but does not name a specific certifying lab (e.g., GIA or IGI) on the pages we could access. Cut styles, engraving options, and detailed financing terms beyond an initial 50% deposit are not published on the site.

Pros:

• Longest independently-verified operating history in this comparison (since 2001)
• BBB-accredited (A+) since 2008 with an active, alert-free status
• Recent five-star customer reviews found on an independent review platform

Cons or Limitations:

• Several details other companies publish are not published by LifeGem: specific cut/shape options, engraving availability and cost, a named certifying lab, and a refund/guarantee policy
• Minimum required ashes (4 oz / 100 g) is higher than several competitors’ stated minimums

Best Suited For: Families who place a premium on a long, independently-verifiable operating track record and don’t need a fully itemized public price list or published refund policy before reaching out directly.

Comparison Chart – Side-by-Side Breakdown

Table refreshed 2026-09-15 with current pricing and terms verified directly from each provider’s own official website. Starting prices refer to different minimum sizes and colors — always the least expensive option a provider publishes, not a directly comparable like-for-like figure. Independent grading, jewelry settings, and other add-ons typically cost extra. Terms change; verify directly with each provider before ordering.

Buyer Guidance: What to Know Before You Choose

Why “starting price” alone is misleading. Every company above publishes a different minimum diamond size as its “starting price” — from 0.03 ct (Heart In Diamond, $750) to 0.30 ct (Algordanza, $2,999). If you want a true apples-to-apples read, ask each company for their price at the same carat size and color before deciding.

Finished weight vs. rough weight. Several companies, including Algordanza and Lonité, offer rough (uncut) diamonds at a discount compared to a finished, polished stone of the same starting weight. A rough diamond and a finished diamond described as “the same size” are not the same amount of visible, wearable stone. Ask directly whether a quoted price and carat figure refer to rough or finished weight.

Comparing timelines. Ask when the quoted period starts, whether it covers diamond growth alone or the complete order, whether shipping is included, and what happens if the estimate changes. Different descriptions can refer to different stages, so clarify the scope before treating them as contradictory.

Certification differences matter. Every company in this comparison provides its own in-house certificate. Only some — Saint Diamonds, Eterneva, Lonité, EverDear, and Heart In Diamond — also offer independent third-party grading (typically IGI or GIA) as an option, usually for an added fee. Algordanza and LifeGem, as researched here, do not offer a named third-party grading option.

Where your diamond’s carbon actually comes from. Not every company builds the finished diamond exclusively from your submitted ashes or hair. EverDear and Lonité explicitly state they do not pool, blend, or supplement with unrelated carbon. Eterneva’s own FAQ states its process adds a diamond seed and “generic carbon” alongside your submitted material. Heart In Diamond adds “generic carbon” specifically when the ashes or hair you provide fall short of the requested amount. Saint Diamonds’ Terms also permit additional laboratory carbon where required. Ask any provider directly and in writing if this matters to you.

What’s typically included in the base price — and what isn’t. Across the companies researched, the base diamond price almost never includes a jewelry setting (Saint Diamonds includes a classic setting from 0.75 ct), and third-party certification, engraving, and non-standard cuts are usually priced as add-ons. Ask for a full, itemized quote before comparing final totals.

Questions worth asking any provider directly:

• Is this price for a rough or a finished, polished diamond?
• Is the stated turnaround an average, or a guaranteed maximum?
• Is third-party (GIA/IGI) certification available, and is it included or extra?
• Will my diamond be made exclusively from the ashes/hair I send, or supplemented with additional material?
• What is your refund or cancellation policy if I change my mind after sending ashes or hair?
• Is a jewelry setting included, or priced separately?

Red flags to watch for, based on this research: a company that won’t put its refund/cancellation policy in writing before you pay a deposit; pricing that isn’t available anywhere without a phone call, with no explanation; and vague claims about “100% pure” or “only your loved one’s carbon” that aren’t backed up by a specific, checkable process description.

There’s no deadline on this decision. Whether you’re exploring this option now or holding onto ashes while you decide, there’s no time limit on choosing to create a memorial diamond, and no wrong pace for making this decision. Take the time you need — the companies compared here, and their pricing and processes, will still be here to research when you’re ready.

Their Story Lives On

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Why Families Choose Saint Diamonds

Saint Diamonds publishes prices by size and color. A classic jewelry setting is included from 0.75 ct, a premium setting from 1.5 ct, and IGI grading with a personal inscription from 1 ct. We create diamonds for human and pet memorials in Europe and track each order’s stages. Materials from different families are kept separate.

Final Thoughts – How to Choose the Right Company

Choosing to turn your loved one’s ashes into a diamond is a deeply personal and meaningful decision. All seven companies featured in this comparison are currently operating, verifiable providers in the memorial diamond space, each with a different combination of price, timeline, and included services.

There isn’t one “best” answer for everyone. If budget and speed matter most, Heart In Diamond’s low entry price and fast turnaround are worth a closer look. If you want the widest published, no-call-needed pricing grid, Lonité offers that. If a documented, video-updated journey matters more than price, Eterneva is built around that. If you want free jewelry included at accessible sizes and both human and pet service, that’s where Saint Diamonds stands out. Whichever you choose, use the buyer-guidance questions above to get a clear, written answer on price basis, timeline, certification, and refund policy before you send anything.

Frequently Asked Questions

1. How do ashes turn into diamonds?

Cremation ashes contain carbon, the same element found in natural diamonds. Specialized labs extract and purify this carbon, then apply intense heat and pressure – HPHT (High Pressure, High Temperature) is the method every company in this comparison states it uses – replicating the conditions under which natural diamonds form. Over several months, this carbon crystallizes into a diamond.

2. How much does an ashes-to-diamond cost?

Based on this comparison, published starting prices range from $750 (Heart In Diamond, 0.03 ct) to $3,499 (Eterneva, 0.25 ct), with most full-size (0.25 ct+) diamonds starting somewhere between $1,000 and $3,000 depending on the provider and color. Larger, rarer colors cost significantly more – well into five figures for stones over 1 ct. Many providers offer in-house payment plans or third-party financing (such as Affirm) to spread the cost over time.

3. How do I choose the best ashes-to-diamonds company?

Based on what we found researching seven companies’ own sites, look for: a price quote that specifies exact carat size and whether it’s rough or finished weight; a clearly stated (and consistent) production timeline; a named certification option if third-party grading matters to you; a written refund or cancellation policy; and clarity on whether your diamond will be made exclusively from your submitted material.

4. Is it safe to send ashes in the mail?

Every company in this comparison that publishes shipping information describes a tracked, insured process for receiving ashes or hair. Confirm the specific packaging and tracking details directly with your chosen provider, and ask about their policy if a shipment is lost (EverDear, for example, publishes an insured-loss refund policy on its own site).

5. How long does it take to turn ashes into a diamond?

Across the seven companies researched, stated timelines range from about 70 days (Heart In Diamond) to roughly 12 months (Lonité, several others), with most providers in the 4–11 month range. Every company frames its own timeline as an estimate rather than a guarantee, and size, color, and any add-on services (certification, engraving) typically extend it further.

6. Will the diamond be made only from my loved one’s ashes or hair?

It depends on the company – this isn’t consistent across the industry. EverDear and Lonité state explicitly that nothing is pooled or substituted. Eterneva’s own FAQ states its process adds a diamond seed and additional “generic carbon” to every diamond. Heart In Diamond adds generic carbon specifically if your submitted sample is smaller than requested. Saint Diamonds’ Terms also permit additional laboratory carbon where required. If this matters to you, ask any provider to confirm their process in writing before you send ashes or hair.

7. Can I customize the diamond (color, cut, setting)?

Yes, at every company compared here, though the specific options vary. Colors range from 2 (Algordanza) to 8 (Eterneva) depending on the provider. Cut/shape options are published by most companies, though LifeGem does not list specific cuts on its site. Jewelry settings are available from every company compared here; at Saint Diamonds, a classic setting is included from 0.75 ct.