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Sapphire, with its Mohs hardness score of 9, second only to diamond, is one of the most valuable and wearable of all gemstones. Sapphire is the birthstone for September and the gem of the 45th anniversary.
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.