- Made in 14K White or Yellow Gold - 18" Total Length - Adjustable - 0.35 carat total weight - Natural Earth Mined Diamonds 100% Natural Diamonds and Gemstones Guaranteed All our jewelry goes through a process of screening and testing to guarantee the diamonds and gemstones are 100% naturally mined. Item has been carefully inspected under our quality control standards. Solid 14K gold and natural, earth-mined diamonds in a size that layers with everything. Every stone is screened and tested so you know exactly what you're wearing.