Historic natural colored diamonds, recorded on Hedera

Own a share of a diamond with a history

We plan to offer shares in a few of the world's rarest natural colored diamonds: GIA-graded stones worth $1 million or more, each with a documented story. Every stone will have its own market, so shares can be bought and sold on any trading day. Accredited investors can request private offering materials now. Everyone else can register non-binding interest in our planned public offering.

Get startedSee how it works

GIA fancy color grades, pink hue (illustrative)

  1. Faint
  2. Very Light
  3. Light
  4. Fancy Light
  5. Fancy
  6. Fancy Intense
  7. Fancy Vivid

We list only the top grades (Fancy Intense, Fancy Vivid and Fancy Deep) in pink, red, purple, blue or green. What qualifies a stone

A share of one stone

Each stone has its own token on Hedera, divided into shares. Owning shares of that token means owning that fraction of the stone. The DAO stores and insures every stone.

A market for every stone

Once trading opens, each stone's shares will trade on a registered venue on any trading day. There's no fixed sale date.

A record no one can quietly change

Every stone's GIA report, history, custody and ownership are recorded in our provenance registry on Hedera.

How it works

  1. Find

    We look for stones with a documented story, such as a public auction record, a named-stone history or a documented mine of origin. Each needs a GIA report confirming natural color and an appraisal of $1 million or more.

  2. Verify and record

    The stone's report, inscription, history and custody go into our provenance registry on Hedera.

  3. Tokenize, store and insure

    We create one token for the stone on Hedera, divided into shares. The DAO stores the stone in a secure, insured vault and holds it for the token holders.

  4. Offer

    Today we offer privately to verified accredited investors under Rule 506(c). Our public offering will open once the SEC qualifies it under Regulation A.

  5. Trade

    Once trading opens, each stone's shares trade on a registered venue. Private-offering shares are restricted for six months to a year first.

  6. Majority sale

    There's no fixed sale date. Anyone who comes to own more than 50% of a stone's shares can require every other holder to sell to them at the same price.

Read the full model

Why the rarest stones

Lab-grown diamonds have made ordinary stones cheap. We think that makes proven natural rarity worth more, and the top of the market has held up so far. In 2024 the Eternal Pink, a 10.57-carat Fancy Vivid Purplish Pink, sold for $34.8 million at Sotheby's. In 2025 the Marie-Thérèse Pink sold for $14 million at Christie's, nearly three times its high estimate, on its documented royal history.

The top of the market can stall too. In November 2025 two pink diamonds estimated at about $20 million and $9 million were withdrawn from Geneva auctions before their sales.

Across colored diamonds as a whole, we see a store of value, not a growth investment. Measured from 2005 to the end of 2024, pink diamonds returned about 8.3% a year, close to gold and ahead of silver, with far smaller swings. Metals then jumped in 2025, while the colored diamond index held steady, slipping just 1%.

Annualized return from the start of 2005 To end of 2024 To end of 2025 0%3%6%9%12% Pink diamonds (FCRF)8.3%7.9%Blue diamonds (FCRF)6.4%6.0%All colors (FCRF index)5.8%5.4%Yellow diamonds (FCRF)2.1%1.9%Gold9.3%11.5%Silver7.6%11.9%Platinum0.3%4.2%Copper5.4%6.5%Nickel0.6%0.4%US home prices3.6%3.5%US bonds2.8%3.0% Inflation 2.6% a year

Past the dashed line, an asset gained purchasing power. Metals jumped in 2025: gold rose 65%, silver 144% and platinum 125% that year. Sources: FCRF via Rapaport and FCRF Q4 2025 report (end-2024 levels derived from 2025 changes); gold and silver, London prices on Dec 31, 2004 ($438 and $6.82) and Dec 31, 2025 (about $4,310 and $72), with end-2024 prices derived from 2025 gains (BullionVault); platinum, December 2004 average of about $853 (USGS) and spot prices of $902.74 (Dec 31, 2024) and $2,033.23 (Dec 31, 2025) via Fortune; copper and nickel, IMF global prices, December monthly averages, via FRED; US home prices, S&P Cotality Case-Shiller US National Index via FRED (prices only, no rent); US bonds, total return of the AGG aggregate bond fund via Chartrow; inflation, CPI-U annual averages via the Minneapolis Fed. Past performance doesn't predict future results.

The FCRF index covers a broad range of colored diamonds, not just the top stones we list. Past performance doesn't predict future results.

See how steady colored diamonds have beenMore on the asset class and its risks

Own the exchange itself

Each $BDE token is a membership interest in Brilliant Diamond Exchange DAO LLC, the company that runs the registry and the stone markets. Holders vote on its direction, earn a 7.5% staking reward in $BDE (guaranteed for the first five years) and share in its revenue. About $BDE

Register a stone

Dealers, auction houses, insurers and collectors can record an important stone in our provenance registry. About the registry

Know the risks first

  • This is a speculative investment. You could lose everything you invest.
  • A diamond pays no rent or dividends. Your return depends on share prices and any majority sale.
  • There may be few buyers when you want to sell, and shares may trade below the stone's appraised value.
  • $BDE staking rewards are guaranteed in tokens, not dollars, and only for the first five years. Distributions depend on company revenue and may never be paid.

Read all risk factors

Be first in line

Accredited investors can request private offering materials. Everyone else can register interest in our public offering. No money is being accepted now, and registering commits you to nothing.

Get started