The jewels OmniaOro they are entirely in 18 Kt Gold - 750/1000 accompanied by a certificate of guarantee and an elegant packaging. Material: 18Kt 750/1000 Gold Finish: Polished and multifaceted Manufacturing: Full shirts Length: 45.0 - 50.00 - 60.00 cm Sphere size: 0.20 cm Closure: Snap hook Weight: 3.10 - 3.30 - 3.50 gr Collection: Wedding ring Its value is determined by weight plus manufacturing The weight of the jewel could vary by 3% both for excess and for defect.