Gold price is not gem value
The Gold Traders Association publishes the domestic 96.5% gold reference in baht-weight terms. It does not price a coloured stone, diamond quality, jewellery design or a retailer's making charge.
Thailand gold, gem and jewelry data
No single API establishes price, identity, grading and trade activity. Use the Gold Traders Association for Thailand's 96.5% gold reference, GIT for laboratory and trade data, GIA for its own report checks, and Department of Business Development records for company identity.
Laboratory and trade records answer different questions
GIT provides gem and jewelry trade statistics and report-verification or testing services. Trade totals describe products moving between countries; a laboratory result concerns a submitted item.
Registration is not product assurance
Open DBD records can confirm a juristic person's registered identity and business classification. They do not prove current stock, precious-metal purity, gemstone grading or retail trust.