Why do making charges matter when calculating profit?
When selling used jewelry, a jeweler usually pays only for the raw gold weight at market price, and doesn't refund the "making charges" (craftsmanship fee) you paid at purchase. So a realistic profit or loss calculation for jewelry should compare the current value to the total you actually paid (gold price + making charges), not the gold price alone. Bullion is usually very close to market price with a small spread and includes no making charges.
Converting price between karats is mathematically simple: each karat = (karat number ÷ 24) of pure 24k purity — a fixed ratio that never changes, unlike the gold price itself, which you enter manually since it changes daily.
FAQ
Why doesn't the calculator fetch the gold price automatically?
Gold prices change by the minute and require a live external data source. Enter the current price manually from a trusted source (like your local jeweler's site or the gold market) to ensure the result is accurate at the time you calculate.
What's the difference between 21k and 24k?
24k is pure gold, 999.9. 21k contains 21 parts out of 24 pure gold (87.5%), with the rest other metals for added hardness — the most common in the Gulf for everyday jewelry.
Source
Standard karat-to-purity conversion ratios (karat ÷ 24).
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Last updated: July 2026
This calculator is an estimate based on the price you enter, not an official jeweler's pricing. Read the full disclaimer.