18 Karat (750‰) Gold Price in Switzerland: Price per Gram & Calculation

At a glance18-karat gold, universally identified by the Swiss state hallmark '750‰', is the uncompromising quality standard of Switzerland's world-renowned jewelry and luxury watchmaking industries. Composed of exactly 75% pure fine gold and 25% alloy metals (pure silver and copper for traditional yellow gold; palladium or platinum for high-grade Swiss white gold), the price per gram of 18k gold in 2026 is reaching historic highs on the Swiss market, typically trading between CHF 75 and CHF 90 per gram based on real-time London Bullion Market (LBMA) spot rates.

Understanding Metallurgy and the 750‰ Fineness Standard

Unlike 24k pure gold (999.9‰), which is soft and easily deformed, 18-karat gold is engineered to withstand daily wear on luxury watch cases, rings, and bracelets. The 250 thousandths of alloying elements determine both the mechanical Vickers hardness and the precise color tone:

• Classic Swiss Yellow Gold (18k): 75% pure fine gold, 12.5% fine silver (999‰), and 12.5% electrolytic copper. This precise ratio creates the iconic warm golden luster.
• Swiss White Gold (Palladium Standard): 75% pure gold and 15% pure palladium, complemented by silver and copper. In Switzerland, nickel is strictly prohibited for skin-contact items under federal health regulations, making Swiss white gold 100% hypoallergenic.
• Rose & Red Gold (5N): 75% pure gold, 20% copper, and 5% silver. The increased copper proportion creates the warm reddish tint favoured by Geneva watch manufactures.
• Raw Gray Gold: Unfinished workshop alloy before electroplated rhodium finishing provides a radiant mirror-white shine.

Comparative Table: Gold Karats, Purity, and Benchmark Values in Switzerland (2026)

Mathematical Formula for Calculating 18 Karat Gold Value

The scrap or intrinsic value of an 18-karat gold lot is derived directly from the live international spot rate converted into Swiss francs:

Formula: Intrinsic Spot Value (CHF) = Gross Weight (g) × 0.750 × Live 24k Gold Spot Price per Gram (CHF)

Concrete Numerical Example: Assume the live 24k gold spot price trades at CHF 112.00/g. You own an 18k bracelet and two rings weighing a combined 36.00 grams.

• Fine gold content: 36.00 g × 0.750 = 27.00 grams of pure fine gold.
• Gross spot valuation: 27.00 g × CHF 112.00 = CHF 3,024.00.
• Fair payout from an authorized Swiss bullion dealer (with standard 8% to 10% melting and refining spread): CHF 3,024.00 − 9% = CHF 2,751.84 net payout via bank wire or cash.

Official Swiss Hallmarks and Precious Metals Control

In Switzerland, the Central Office for Precious Metals Control within the Federal Office for Customs and Border Security (FOCBS) enforces strict hallmarking laws. Every legitimate 18k piece sold or purchased in Switzerland must feature:

• The fineness stamp '750' enclosed in a lozenge or geometric cartouche.
• The official Swiss state guarantee hallmark: the side-profile Helvetia Head.
• The registered maker's mark (Responsibility Mark): identifying the jeweler or watchmaker registered with the federal office in Bern.

How to Get the Highest Buyback Payout in Switzerland

• 1. Demand a certified scale: Ensure the scale displays two decimals (0.01 g) and bears the official green cantonal verification sticker.
• 2. Deduct non-gold weight: Genuine dealers deduct non-gold stones, interior resin fillings, and steel springs from clasps transparently before computing payout.
• 3. Compare buyer spreads: Avoid traditional pawnbrokers (charging 20% to 30% discounts). Reputable Swiss refiners and bullion dealers operate with tight spreads between 6% and 10% below spot.
• 4. Check live rates on GoldPrice24: Enter your exact weight into our scrap calculator below before visiting any dealer to know your guaranteed floor price.

Frequently Asked Questions: 18 Karat Gold in Switzerland

How can I verify 18k gold without a visible hallmark? Certified Swiss dealers perform an acid touchstone test calibrated for 18k or utilize non-destructive X-Ray Fluorescence (XRF) spectrometry, providing an elemental breakdown in seconds.

Are white gold and rose gold worth the same as yellow gold? Yes, exactly the same per gram. The valuation is strictly based on the 750‰ fine gold content, irrespective of the copper, silver, or palladium alloys used.

Do private sellers pay taxes when selling 18k gold in Switzerland? No. Under Swiss federal tax law, capital gains realized on private movable wealth are 100% tax-free, and no VAT applies to private gold sales.

What is a normal dealer discount when selling scrap gold in Switzerland? A fair commercial spread ranges from 7% to 12% below spot. Any offer deducting more than 18% is substantially unfavorable to the seller.