How this calculator works
The calculator starts from the live 24K gold price per troy ounce, converted to ZAR 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.
South African jewellery is typically 9K or 18K, with 22K largely confined to the Krugerrand coin alloy and imported pieces. Fineness marks such as 375 and 750 are standard, and jewellers price from the daily rand gold rate.