Tungsten Carbide Silver Tone High Polished Flat Top Brushed Beveled Edge Comfort Fit Wedding Engagement Men Unisex 7mm (5/16") Ring Band size 9 10 11 12 Tungsten Carbide is ranked second hardest next to diamond on the Mohs scale, diamond being a 10 followed by Tungsten Carbide as 9. This beautiful ring is 7MM in width. It is all high polish, flat top with beveled edges. If you are looking for a ring that is scratch proof and forever keep its shine, than this Tungsten Carbide ring is for you. This Tungsten ring is Cobalt Free and hypoallergenic. It will not cause skin irritations or turn your fingers green. Due to the Hardness of Tungsten, these rings can be laser engraved, but not hand engraved. Return Policy 30 Days hassle free - Money Back Guarantee. Buyer pays return shipping If there is any question or problem with the item or your purchase, PLEASE CONTACT US using the 'Ask a question' link below