Diamond Foundry
PrivateLast Round
Grant
Dec 16, 2024
Est. Valuation
$1.8B
Total Funding Raised
$385M
Momentum
Top 5%
of companies Caplight tracks
Company Overview
Diamond Foundry is a manufacturing company that produces lab-grown, single-crystal diamonds for the jewelry and semiconductor industries using proprietary plasma reactor technology.
Sector
Consumer & Commerce
Verticals
Advanced Materials, Semiconductors, D2C Brands, Sustainable Materials, Clean Manufacturing
Business Model
B2B
Customer Profile
Hardware Sales
AI Layer
Non-AI
Keywords
Price History
Caplight MarketPrice™ estimate for Diamond Foundry, published with a 90-day delay.
Caplight MarketPrice™
$48.16
per share, as of April 2026
-68.7%
2-year change
Caplight MarketPrice™ is an estimate of private secondary market pricing, shown here on a delayed basis for illustrative purposes only. It may be incomplete, is subject to change, and may not be relied upon for any purpose or considered investment advice.
Diamond Foundry Comparables
Compare Diamond Foundry with similar companies based on industry and business-model similarity.
| Company | Similarity | Market Cap |
|---|---|---|
| Adamas One Corp. | 77% | |
| Anglo American | 72% | |
| Appsilon Enterprise B.V. | 72% | |
Diamond Foundry Funding Rounds
Historical fundraising activity
| Round | Date | Amount Raised | Valuation | Investors | Sources |
|---|---|---|---|---|---|
| Grant | Dec 16, 2024 | ||||
| Series C | Mar 29, 2021 | ||||
| Series A | Nov 12, 2015 |
Secondary Market Activity
Bids, offers, and trades by month
| Operation | Date | Price | Size | Share Class | Structure |
|---|---|---|---|---|---|
BID | |||||
OFFER |
Key People
Founding team and executive leadership
Diamond Foundry Investors
Notable investors and investment history
| Investor | Rounds |
|---|---|
| Capricorn Investment Group | Series C |
| European Commission | Grant |
| Government of Spain | Grant |
| Fidelity Management & Research Company | Series C |
| Obvious Ventures | Series A |
| GVA Capital | Series C |
| Vast Ventures | Series C |
Market signals
Structured signals derived from secondary market and firmographic data.
- Jun 20, 2026
Monthly visitors increased 68% MoM.
- Jan 1, 2026
€1 billion investment in diamond wafer production facility in Spain.
Diamond Foundry Filings
SEC and related filings with document metadata.
| Typed | Date | Amount Offered | Amount Sold | Filling | Pages | Download |
|---|---|---|---|---|---|---|
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Frequently Asked Questions
Common questions about Diamond Foundry's valuation, stock price, and market status.