Hardness is another thing, In addition to quite a few Other folks, which differentiates sapphires from other gemstones. It can be second only to diamond and scores a nine out of ten to the hardness scale. Do sapphires can be found in any other color Apart from blue? Though our https://sitesrow.com/story7744706/natural-yellow-sapphire-from-sri-lanka-no-further-a-mystery