Sapphire 2-6mm Graduated Faceted Rondelle - 18 InchSapphires are precious gemstones, but unlike rubies, they come in a rainbow of colors besides red! They are all varieties of the mineral corundum, known for its incredible hardness, second only to diamond . This makes sapphires very durable and scratch resistant. Formed deep underground during the cooling of magma, sapphires get their various colors from trace elements. Iron gives them blue, the most famous sapphire color, while titanium can create

which gives it a naturally glossy appearance even before polishing

Dendritic Agate has branch to like inclusions of iron or manganese

Weight: grams: 80-100 grams

which receive their color from trace amounts of chromium

ranging from freeform to abstract

a stone which is indistinguishable from Jade except to the most trained and discerning eye

crafting stunning jewelry has never been simpler or more enchanting

a 19th-century German professor of chemistry and mineralogy

A form of common opal

often occurring with inclusions of white

Whether you're drawn to it's beauty or you are a collector of cool rocks

Dumortierite is an aluminum borosilicate mineral that varies in color from blue