14k Yellow Gold Natural Yellow Sapphire 5.75m Stud Earrings Ct.tw 1.50 Hand made and hand crafted by master jeweler in USA We guarantee that these sapphires are conflict free based on written guarantees by our suppliers The cost of natural sapphires varies depending on their color, clarity, size, cut, and overall quality  as well as their geographic origin. The gold in our products is produced in more socially and environmentally responsible ways Check our measurement comparison chart on our storefront page