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26 precise calculation tools for jewellers, goldsmiths, dealers and investors.
Calculate the exact value of your jewellery or scrap lots based on the LBMA spot price and your trade margin.
Value your silver jewellery, cutlery and coins (800, 925, 999) based on the live silver spot price in CHF.
Determine the exact weight of fine metal to add to reach your target purity (e.g. from 800‰ to 925‰).
Instantly convert between gram, troy ounce, tola, kilogram, grain and all precious metal measurement units.
Set your spread % on the spot price and instantly get the buy and sell prices to display.
Calculate the real premium of a gold coin (Vreneli, Krugerrand, Maple Leaf, Philharmoniker) vs. the spot price.
Anticipate metal loss during smelting and adjust your buying price to maintain profitability.
Calculate the effective yield (%) after smelting and refining. Identify avoidable losses.
Quickly calculate your net commission on any precious metals transaction.
Apply margins, fees and Swiss VAT (7.7%) to get a compliant final price under Swiss precious metals law.
Convert any purity between karats, millesimal fineness (e.g. 750‰) and percentage. Complete reference table.
Start from the target purity and calculate how much fine metal AND master alloy to mix.
Comparative melting temperature table for gold, silver, and platinum. Calculate melting points and workshop casting alloys accurately on GoldPrice24.
Calculate the total value of a melt batch of gold, silver, or platinum by fineness and LBMA spot prices with detailed breakdown by quantity.
Interactive gold price chart across multiple timeframes.
Track the Gold/Silver Ratio in real time to identify entry points.
Compare the evolution of purchasing power against gold over several decades.
Compare the premium per gram of bars (1g to 1kg).
Vreneli, Krugerrand, Maple Leaf, Philharmoniker — premium and liquidity comparison.
Calculate the exact impact of VAT by product type under Swiss law.
Generate a full balance sheet (purchase, melting costs, target margin, resale price) for a batch.
Simulate the impact of Dollar Cost Averaging on your gold purchases.
Verify the authenticity of your gold with the density method.
Estimate the replacement value of your jewelry for insurance.
Calculate the price of rhodium plating to restore white gold.
Subtract the weight of precious stones to evaluate pure metal.
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