WINDSOR STERLING SILVER LEOPARD SKIN JASPER EARRINGS. Gemstones such as; Sapphires, Rubies, Emeralds, Amethyst, Topaz etc., are Genuine Gemstones (unless stated otherwise in the title and/or description). Diamonds are "eye-clean" (meaning clean to the "eye") and range from SI-1 to SI-2 (approximately) and range in color from H to K (approximately).