Ring Size 8 to 12 MSRP: $149.99. Imagine wearing a ring that never needs polishing, a ring that is virtually scratch proof. Tungsten carbide rings are the future. If you are looking for a ring that forever keep its shine, than our Tungsten Carbide rings are for you. Tungsten Carbide is ranked second hardest next to diamond on the Mohs scale, diamond being a 10 followed by Tungsten Carbide as 9. Due to the Hardness of Tungsten, these rings can be laser engraved, but not hand engraved. All ring come with a 100% Money Back Guarantee and a FREE ring Gift Box. SKU # T024