How the gram price is derived
Although Emirati 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 AED 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.
Dubai — the "City of Gold" — is a major global trading hub, with the DMCC and Dubai Good Delivery standard anchoring the regional market. Retail rates are quoted per gram for 24K, 22K, 21K and 18K, converted from the USD spot price at the dollar-pegged AED rate.