What is 22K gold?
22 karat gold contains 22 parts gold and 2 parts other metals (usually copper and silver), making it about 91.6% pure — which is why it is hallmarked 916. The small amount of alloy makes 22K noticeably harder and more durable than pure 24K gold, while retaining a rich gold colour. That balance of durability and gold content makes 22K the standard for traditional jewellery across much of Asia and the Middle East.
Thai gold jewellery is traditionally 96.5% pure (23.04K) — a unique national standard between 22K and 24K. It is sold by "baht weight" (one baht of gold ≈ 15.244 grams), with shops in Bangkok's Yaowarat district quoting buy and sell prices for both ornament and bar gold.