The jewels Omniaoro They are entirely in 18 kt gold - 750/1000 accompanied by a guarantee certificate and an elegant package. Material: 18 kt 750/1000 yellow gold Finish: Lucid and satin Plate size: 0.10 x 0.14 cm Weight: 6.60 gr Its value is determined by more manufacturing weight The weight of the jewel may vary by 3% both by excess and by defect.