Necklace – Japanese Pearls and Diamonds 18 carat gold (kt) white gold: 29.26 grams (gr). 96 diamonds brilliant cut:total weight 4.68 carat (ct) (G color VVs clarity). 32 japanese pearls: total weigth: 108 grams (gr). Length: 17 inches (Usa) | 43 cm (Italy). Codex: Ires.