Ring – Ruby and Diamonds – 830 Euro 18 carat gold (kt) yellow gold: 6.70 grams (gr). 4 white diamonds, brilliant cut: carat 0.30 (ct) (G color VVs clarity). 1 ruby of 0.66 carat (ct) Size: 7 (Usa) | 14 mm (Italy). Price: 830.00 (IVA included).