This is an amazing 18k yellow gold necklace. The necklace is set with lovely oval cut yellow sapphires that weigh approximately 55.00ct. The sapphires are accentuated by sparkling round cut diamonds that weigh approximately 3.00ct. The color of these diamonds is H with VS clarity. The necklace measures 18 inches in length and 5mm in width. The necklace is stamped 750 and weighs 45.9 grams.