At a Thai gold counter, baht can mean a unit of gold weight as well as the currency used to pay. A quote makes sense only when the weight unit, purity and product type are read together.
A sign for one baht of gold identifies a weight category; the amount due appears in Thai baht currency. Smaller pieces may be described as fractions of a baht-weight or shown in grams.
Use the weight printed on the item’s label and receipt. Do not rely on a remembered conversion when comparing jewellery, because the relevant product weight and quoted price should be documented by the seller.
The Gold Traders Association says 96.5% is the usual standard for Thai gold jewellery, while higher-purity products also exist. Confirm the percentage rather than comparing pieces by colour alone.
Bars and ornaments have separate reference prices, and jewellery includes workmanship. Ask for the gold value and making charge separately, then check what the same shop would deduct if you sold the item back.