Black Opal

Class Ring Mod™ Gemstone Black Opal

Black Opal

Every genuine Black Opal is different, making it one of the most unique center stone options for your class ring. Color variations may include: green, blue, yellow, red, and purple. Black Opals only come in a cabochon form, meaning they are polished and not facetted.

Given the softness of opal, 5.5 to 6.5 out of 10, it's not recommended for daily wear. However, Black Opal's rarity and combination of many colors makes every class ring we upgrade with it truly stand out from the crowd. We receive more and more requests for Black Opal upgrades every year.

Mineral Hydrated Silica
Hardness 5 to 6.5
Birthstone October


The following packages can be built with Black Opal centers.
Choose one for more customization options.

Sizes & Availability

Diamond and gemstone dividers are available for all ring sizes.
Large Ring
Base Gemstone Style Divider
Classic M1™ 12x10
Pro M12™ 12x10
Pro M18™ 12x10
Pro M26™ 12x10

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Products are not pictured in actual size. Colors may vary depending on your screen. Images shown represent actual products. Every product is unique and may vary.