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Opal has a hardness of 5.0-6.5 on the Mohs Hardness Scale. Due to their relative softness, opals are rarely faceted. The ring surface is very durable and strong. Material: 925 hallmarked. We are Non-smoking household and pets-free.
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.