Jewelry and craft in Thailand

Materials and craft

Thai jewellery can be checked in four separate ways. One test can show what an object is made from. Craft records can show how a type of work is made. A business record can show who the seller is. Sale terms set out what can happen after a sale. No single paper does all four jobs.

The Gem and Jewelry Institute of Thailand, or GIT, runs gem and metal labs. Its precious-metal lab tests gold, silver, platinum, and other metals. Its public pages list methods such as X-ray fluorescence, fire assay, and titration.

GIT began a voluntary hallmark system in 2017. Under its published process, the lab tests a sample from a group of pieces. If the sample meets the stated fineness, the group can receive the GIT hallmark.

The hallmark has a narrow meaning. It deals with precious-metal fineness under that program. It does not prove who designed the piece. It does not rate all parts of the craft. It does not show who owned the piece before the sale. It also does not set the return terms.

Makers, trade, and place

Thai gold has its own strong trade norm. The Gold Traders Association says 96. 5 percent gold is common for gold ornaments sold in Thailand. This kind of worked gold is often called ทองรูปพรรณ (*thong rupaphan*). The alloy makes the gold more fit for wear and shaping. The 96. 5 percent norm is a key part of the Thai gold trade, but it does not define all jewellery made or sold in Thailand.

Gem-set work adds another layer. The Office of the Consumer Protection Board, or OCPB, treats cut gems and jewellery set with cut gems as controlled-label goods. Its material says the label must give set facts about the goods and the business behind them. These rules deal with disclosure. They do not replace a gem test when the stone itself must be identified.

Workmanship is not the same as material. A lab can identify a stone or metal without judging the full craft of a finished piece.

Thai craft records show why this split matters. GIT links Chanthaburi with gem cutting and heat work. It links Chiang Mai with silver, Sukhothai with gold craft, and the south with pearls. Each place has its own mix of skills, tools, forms, and workshop history.

SACIT gives a close view of some of these skills. Its archive records silver work in Ban Kad, Chiang Mai, with roots in the local Shan community. One method is called ยัดลาย (*yat lai*). Fine silver parts are twisted, coiled, placed, and built into detailed forms. SACIT also records Sukhothai goldsmith lines and fine floral or grain-like gold work.