Natural raw sapphire – 137.70 ct + Certificate - Collection-grade rough crystal- 27.4 g

This piece is a natural raw sapphire crystal weighing over 130 carats and accompanied by a certificate verifying its characteristics. Sapphires belong to the corundum mineral family and are prized for their hardness second only to diamonds, making them highly valuable as gemstones. While typically recognized for their deep blue hues, sapphires can occur in a variety of colors. Raw or rough sapphires retain their natural crystal form before being cut or polished for jewelry use. Possessing a collection-grade rough sapphire offers insight into the mineral's natural structure and allows collectors to appreciate its unaltered beauty and potential forms after cutting. Documented authentication adds assurance to the stone's identity and quality.