This is a fabulous 18k gold engagement ring. The ring is centered with a lovely cushion cut sapphire that weighs 3.06ct. The sapphire is accentuated by sparkling round cut diamonds that weigh approximately 0.50ct. The color of the diamonds is G with VS clarity. The top of the ring measures 12mm by 11.5mm. The ring weighs 4.9 grams. The ring is size 6 1/4 but it can be resized.