14K Yellow Gold Blue Diamond Stud Earrings 1/4ct tw Crafted In Solid 14 Karat Yellow Gold Crafted In Solid 14 Karat Yellow Gold SuperJeweler offers free shipping in the United States, Canada, the United Kingdom, Australia and almost every country. All purchases from SuperJeweler come with The SuperJeweler Lifetime Guarantee. Your SuperJeweler jewelry purchase includes a lifetime guarantee against the loss of side stones or damage to the jewelry's setting or center stone. It also includes a one-year replacement guarantee against the loss of your jewelry's center stone. Natural untreated blue diamonds do exist, but they are rare. SuperJewelers blue diamonds are safely irradiated in a cyclotron or linear accelerator, that turns brownish and pale yellow diamonds into richly blue diamonds. This color change to blue is permanent, but can change if thediamond is exposed to high heat. Blue diamonds from SuperJeweler have varying numbers of facets from 0 to 16. Treated blue diamonds are not considered gem quality diamonds.