Ring – Queen – 790 EURO 18 carat gold (kt) yellow gold: 9.30 grams (gr). 16 white diamonds, brilliant cut: carat 0.40 (ct) (G color VVs clarity). 1 Emerald of 0.38 carat (ct). Size: 6.5 inches (Usa) | 13 mm (Italy). price:790.00 euro (IVA included).