Tommaso Design Oval 9x7 mm Simulated Alexandrite Engagement Ring (0.10 cttw) 14kt Gold 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. SIMULATED ALEXANDRITE: The Simulated Birthstone for June. Named after Czar Alexander II of Russia, this very rare gem has the ability to change color. A symbol for change, Alexandrite is said to inspire imagination, creativity and confidence. Width: 12.00 mm Length: 9.00 mm Additional Stones: (0.10 carat white-diamond, Shape: round-shape, Color: L-M, Clarity: I3, Creation: natural, Treatment: not-treated.)