This product is a stunning .65ct. round Montana natural yellow/orange bi-color sapphire with a transparency grade of transparent. The gemstone has a deep beauty with a depth of 2.89mm and a width of 5.5mm. Sourced from the United States in the 1960's-70's, this vintage gemstone is not enhanced and has an excellent cut grade. Perfect for jewelry making, this wholesale gemstone is natural and eye clean, making it a rare and valuable piece for any collection. #10