Tungsten Carbide Unique in appeal and strong by design, tungsten carbide is a forged metal with qualities that will last a lifetime. Tungsten carbide jewelry is created from an alloy of 80% elemental Tungsten and 20% Carbon alloyed with other metals.
Tungsten Carbide Cobalt Cobalt Made from a highly durable alloy, cobalt is four times harder than platinum while at the same time, less dense. Because of its natural hardness, cobalt jewelry is extremely scratch, chip and corrosion-resistant. Its lower density and natural malleability allow for strong, dynamic designs with less weight. Cobalt is also hypoallergenic, making it an ideal choice for those with sensitive skin or an active lifestyle.
Tantalum Tantalum is the newest addition to our contemporary metals, and is highly scratch-resistant and hypoallergenic. Naturally a blue-gray metal, our tantalum is 99% pure and coated with a ceramic glaze that gives the metal a matte black finish. It is important to note that Blue Nile only carries conflict-free tantalum processed in non-conflict mines and production facilities.