Still can't decide? Let’s break down some other factors worth considering one by one!
Weight: Tungsten carbide is a dense metal with a density of 15.6 and is a little bit on the heavier side, but nothing too noticeable as a tungsten ring. Tungsten carbide does possess a similar, if not the same weight as gold! Cobalt on the other hand has a density of 8.5. It isn’t quite as light as titanium or silver, but it is lightweight enough to be considered as one of the lightest materials for rings. If you are looking for a heavier feel, then go with tungsten.
Price: Cobalt is known to be more expensive than titanium and tungsten, but certainly not as expensive as materials like gold. Both cobalt and tungsten are quite affordable with tungsten being a bit cheaper.
Color: At first glance, you may not notice quickly the differences in color between a tungsten carbide ring and a cobalt ring as they both have a greyish color to them! However, upon closer inspection, tungsten carbide has a more noticeable, darker, gunmetal color. Cobalt has similar brightness and luster to that of white gold or platinum. When comparing both of these rings together side by side, the difference is quite noticeable. If you are looking for a flashier ring, go with a cobalt ring.
Durability: Both tungsten carbide and cobalt are known for their durability, but their differences lie in where they stand in the mohs rating. Tungsten carbide is not a malleable material and is popular for its impressive strength and is at around 8-9 in the mohs rating, definitely making it one of the harder materials known to man! Cobalt on the other hand is not very far off, sitting comfortably at 7-8 in the mohs rating. It certainly isn’t as strong as tungsten carbide, but it isn’t anywhere near the softer side either. Both are extremely scratch resistant.