Details of the ring Gem: Green onyx Gem shape and size:round cabochon,4mm (1pc) Gem weight: 0.30 carats Gold purity: 14K (58.33% approx.) Gold weight: 1.49 gms total weight of ring:1.55 gms Ring size: us 7 1/2 Emerald like natural green onyx set in solid 14K yellow gold. The Gold purity is guaranteed and it comes with authentic 14 kt gold hallmark. Since these Rings are handmade, Size Customization is available for this ring and it is available in all ring sizes. Gemstone customization is availa Green Onyx Jewelry, Alternative Engagement Ring, London Blue Topaz Ring, Onyx Jewelry, Blue Topaz Stone, Black Onyx Ring, Alternative Engagement Rings, Onyx Ring, Ring Sizes