How this calculator works
The calculator starts from the live 24K gold price per troy ounce, converted to SAR at the current exchange rate. Your weight is converted to grams (1 troy ounce = 31.1034768 g, 1 tola = 11.6638038 g), and the value is adjusted for purity — the multiplier is simply the karat divided by 24, so 22K/916 gold uses 22 ÷ 24 ≈ 0.9167. The formula: value = grams × pure gram price × purity, plus any premium and minus any discount you enter.
Saudi gold souks in Riyadh, Jeddah and Dammam sell mainly 21K and 22K jewellery — 21K being the distinctive regional standard — alongside 18K designer pieces. Shops quote a per-gram rate for each karat, updated through the day, plus workmanship.