Purity: 75% — updated live from the Egyptian gold market.
18K gold at 75% purity is the preferred caliber for European luxury jewelry, watches, and gemstone-inlaid pieces. In Egypt, it is less popular than 21K but is sought by specific segments that prioritize durability and complex crafting. Its price is roughly 14% below 21K due to the purity difference.
Because its purity is lower (75% vs 87.5%). The difference in actual gold content per gram translates directly to price — each 3-caliber step differs by about 12-14%.
24K is better for investment as it retains more resale value due to higher purity. 18K is more suitable for aesthetic and luxury jewelry use.
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