Tommaso Design 7mm Round Black Sapphire Earrings Studs 14 kt White Gold Metal: 14 kt White Gold. Dimensions: Width: 7.00 mm Length: 7.00 mm This Classic creation is made by the renowned Tommaso Design Studio. Tommaso Design Studio, is a reputable American Family Business based in New York since 1986, uses the highest quality materials, and will proudly stand behind all of its products. BLACK SAPPHIRE: The Birthstone for September. Named From the Latin `sapphirus` meaning `blue`. A symbol for truth and sincerity, it inspires enlightenment, health and peace. Sapphire naturally occurs in many different colors. Lifetime Warranty exclusively offered by Finejewelers. High End Jewerly Box and Gift Packaging Additional Stones: