How the gram price is derived
Although Swedish shops quote per gram, the global market quotes gold in US dollars per troy ounce. One troy ounce equals exactly 31.1034768 grams, so the pure gold (24K) gram price is the ounce price divided by 31.1034768, converted to SEK at the live exchange rate. Lower purities are then a simple multiplication: 22K/916 is the 24K gram price × 0.9167, and 18K is × 0.75.
Swedish dealers quote in kronor per gram and per ounce, converting the international USD spot price at the live USD/SEK rate. As an EU member, Sweden applies the EU-wide VAT exemption for investment gold even though it keeps its own currency.