About Aether Diamonds
Aether Diamonds makes fine jewelry from diamonds grown using captured carbon dioxide. It sells rings, necklaces, bracelets, earrings and men's jewelry, including engagement rings and wedding bands, and takes custom orders for bespoke pieces. Aether says each carat it produces has a negative carbon footprint, meaning it removes more carbon dioxide from the air than making it releases.
Impossible Diamond, Inc. does business as Aether Diamonds and is based in New York. The company describes itself as a certified B Corp. Ryan Shearman is the company's chief executive officer.
Funding Rounds (SEC Form D)
| First sale | Filed with SEC | Amount sold | Investors | Avg. check | Terms | Filing |
|---|---|---|---|---|---|---|
| Oct 1, 2026 | Nov 4, 2026 | $2,172,435of $7.0M target | 4 | $543K | EquityRule 506(b) | Form D ↗ |
| Oct 1, 2026 | Nov 4, 2026 | $6,357,276fully sold | 24 | $264K | EquityRule 506(b) | Form D ↗ |
| Oct 20, 2021 | Mar 17, 2022 | $21,048,601fully sold | 56 | $375K | Equity, Securities on exerciseRule 506(b) | Form D ↗ |
| Total, three offerings | $29,578,312 | |||||
First sale is the date the first investor in the offering committed to invest. Companies must file Form D within 15 days of that date, so filing dates run later.
Rounds announced by Aether Diamonds
What the company said publicly about its funding. Announced amounts can differ from Form D figures: an announcement can combine several closings, and some money is raised without a Form D.
| Announced | Round | Amount | Investors | Source |
|---|---|---|---|---|
| Feb 4, 2021 | Strategic investment | Not disclosed | Clikia Corp. (lead), Not disclosed | GlobeNewswire release ↗ |
| Mar 7, 2022 | Series A | $18 million | Not disclosed (lead), ESG-focused venture investors | Sovereign Wealth Fund Institute article ↗ |
Why Investors Backed Aether Diamonds
Impossible Diamond, Inc. does business as Aether Diamonds. The company grows diamonds from captured carbon dioxide and sells them as engagement rings, wedding bands and other fine jewelry. It has drawn money from both venture investors and a publicly traded investment holding company, Maison Luxe Inc.
The problem it targets
Aether's case is that mined diamonds carry a heavy environmental cost and are hard to trace, while its own diamonds offer more traceability and a smaller carbon footprint.
What the product does
Aether makes its diamonds from captured carbon dioxide instead of mined carbon, then sets them into rings, necklaces, bracelets, earrings and men's jewelry. It also sells engagement rings and wedding bands and takes custom orders for bespoke pieces. Aether's case is that each carat it produces has a negative carbon footprint, removing more carbon dioxide from the air than making it releases.
Progress so far
Clikia Corp. said in February 2021 that it had bought a significant non-controlling stake in Aether. Sovereign Wealth Fund Institute reported in March 2022 that Aether had raised $18 million in a Series A round. JCK Online reported in September 2024 that Grown Brilliance, a lab-grown diamond seller, had purchased Aether Diamonds.
Who backs it
Clikia Corp., a publicly traded company, made an early investment by buying a stake in Aether. Maison Luxe Inc., an investment holding company, later said it held that stake under the name Impossible Diamond, Inc., doing business as Aether Diamonds. Sovereign Wealth Fund Institute reported that Aether's Series A round drew money from venture investors focused on environmental and social goals.
How the market is moving
JCK Online reported that Aether's chief executive officer said the company could not compete on price with lab-grown diamonds made in India. That competition led to Aether's sale to lab-grown diamond seller Grown Brilliance in 2024, according to JCK Online.
We wrote this summary from public statements by Aether Diamonds and its investors. It is not investment advice.
Aether Diamonds in the News
Leadership Team
Executive officers and directors listed on Aether Diamonds's Form D filed Nov 4, 2026.