Shibuichi Collection

Looking for a wedding ring that is unique, durable and affordable? Explore this gallery of our new metal combination of Shibuichi-Continuum™ Sterling Silver.
Why Shibuichi? Shibuichi is a traditional Japanese copper / silver alloy. The name translates into English as “one quarter”. Shibuichi was often used to decorate the samurai swords handle and scabbard. Our shibuichi is 75% copper and 25% silver.
Shibuichi has several attributes that make it a good component in our mokume gane rings. Copper and silver are both very soft but by mixing copper and silver forming an alloy, the resulting hardness is significantly increased. This makes it a very durable ring for everyday wear.
While shibuichi is initially pale copper in color the alloy quickly will turn to a medium grey color in daily wear. We will normally apply a treatment that colors it to this grey before shipping. If the ring gets a significant amount of abrasive wear it can show a bit of copper tone but will soon return to the grey color.
Shibuichi with its silver content is much more resistant to the copper/silver corrosion problem so is suitable for rings. We have conducted laboratory tests to see if our shibuichi alloy is resistant enough to this corrosion for daily wear and the results were quite positive. So after successfully passing these tests Jim has decided to use shibuichi in rings and offer it as a part of our line.

By combining Continuum™ sterling silver and shibuichi we are able to offer a ring with beauty and high durability at a much lower cost than rings with other precious metal alloys. Rings start at $409. These rings are only offered directly through us and will not be available through other locations.

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