Iljin Diamond
Daily close in US$ at the latest USD/KRW close. Source: KRX via FinanceDataReader.
Iljin Diamond makes synthetic industrial diamonds, lab-grown diamonds used as the cutting material in tools for drilling, grinding, and machining.
Its products serve a wide range of industries, including construction, mining, automotive, shipbuilding, aerospace, IT devices, and semiconductors. Listed on KOSPI, Korea's main stock exchange, the company operates sales subsidiaries in the United States, Japan, China, and Germany, and runs a production facility in Vietnam alongside its domestic headquarters.
Summary is AI-generated and may contain errors · figures from DART filings
The company co-developed its core synthetic-diamond technology with KIST (Korea Institute of Science and Technology) and maintains an in-house industrial research institute at its headquarters.
Iljin Diamond in five facts
What does Iljin Diamond do?
Iljin Diamond makes synthetic industrial diamonds, lab-grown diamonds used as the cutting material in tools for drilling, grinding, and machining.
Where is Iljin Diamond listed and in which sector?
Iljin Diamond (Korean name: 일진다이아) trades under KRX code 081000 on KOSPI, the main board of the Korea Exchange. It is classified in the Materials sector, Chemicals.
How large is Iljin Diamond?
Its market capitalisation was US$96.8M on 2026-10-21, which puts it in this site's small-cap group. US$ amounts are converted from won at 1 USD ≈ ₩1,325 (2026-10-21).
What were Iljin Diamond's latest annual revenue and operating profit?
For fiscal year 2025, Iljin Diamond reported revenue of US$122.6M, an operating loss of US$5.1M and net income of US$4.4M, per its annual report on DART (data retrieved from DART on 2026-09-17). Revenue was up 3.4% on the previous year.
Where does this data come from?
Financial statements and filings come from DART, Korea's official corporate-filing system. Share prices, market capitalisation and trading status come from KRX. Company summaries are AI-generated from the filings and may contain errors; financial figures are mapped directly from DART.
Data sources and last updated
- Filings and financial statements
- DART (dart.fss.or.kr), Korea's official corporate-filing system
- Prices, market cap, trading status
- KRX (Korea Exchange), via FinanceDataReader
- Latest annual financials
- Fiscal year 2025, data retrieved from DART on 2026-09-17
- Share price and market cap
- Close of 2026-10-21
- Currency
- US$, converted from won at 1 USD ≈ ₩1,325 (2026-10-21 close)
- Company data updated
- 2026-10-21
- Company summary
- AI-generated from filings; may contain errors. Information only, not investment advice.
- Cash/in-kind dividend decision
Iljin Diamond declared a cash dividend of US$0.20 per share, equal to about 2.4% of the recent share price.
Dividend · Mar 4 - Change of 30% or more in revenue or profit/loss structure (15% for large companies)
Iljin Diamond reported consolidated results for FY2025: revenue of US$112M (+3.4% year on year), an operating loss of US$4.62M and net income of US$4.05M (−57.05% year on year).
Earnings · Feb 4