These natural cut raw rough deep blue sapphires are unique - exactly the way they were created by nature. Set in classic styled 4 claw sterling silver settings and come with sterling silver pierced ear posts and butterfly backs. These AAA grade blue sapphires each measure approximately 3.5mm - 4mm in size. Perfect in size and shape for everyday wear. These earrings are as unique and individual as you - nature can never duplicate these exact stones!