Wedding rings made from nickel-bound tungsten carbide are 100 percent hypoallergenic as the tungsten is bound to the nickel, keeping it from seeping out and causing irritation. Cobalt alloy tungsten, also commonly used, is still hypoallergenic but leaves the ring susceptible to damage from skin oils. Like titanium, tungsten is very strong, durable and lightweight. Tungsten is ideal for wedding rings as it can remain shiny and scratch-free with daily wear longer than any other metal.
Gold
For those looking for traditional wedding rings, 24 karat gold is ideal. Twenty-four karat gold jewelry is made from pure gold and is hypoallergenic. In this pure form, gold is malleable and can be crafted into various shapes and sizes. However, requiring lifelong gentle care to protect from scratches and dings, 24 karat gold rings are high maintenance. Yellow and white gold alloys made with hypoallergenic metals such as platinum and palladium are suitable alternatives.
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