Ross-Simons - 8.5-9mm Cultured Pearl, 2.30ct t.w. Blue, White Topaz Drop Earrings. Luminous 8.5-9mm cultured freshwater pearls suspend from colorful multi-shaped clusters of 2.10 ct. t.w. blue topaz and .20 ct. t.w. white topaz, creating this irresistibly pretty pair of drop earrings. Set in polished sterling silver. Hanging length is 1 1/8". Post/clutch, white pearl, blue and white topaz drop earrings. Pearl birthstones are the perfect gift for June birthdays.