- Brand: Casa de plata
- Product Code: CSNK-44
- Availability: By Order
This product has a minimum quantity of 30
Ruby is one of the highest valued colored gemstones, in fact, large rubies can fetch higher prices than equivalently sized diamonds. Ruby has been prized for centuries because of its excellent Mohs scale hardness of 9, along with its treasured rich red hue and vitreous luster. Ruby is a variety of corundum that gets its red color from chromium. Corundum that occurs in any color other than red, is classified as sapphire. In its pure form, corundum is completely colorless. The word "corundum" comes from the Tamil "kurundam", meaning "ruby sapphire"