The butterfly backs and the chain is marked 14k. The gold and stones have been tested. The fine, thin marked 14k chain is approx. Total weight is 1.6 grams. Thanks and have a great day!The item "LGL 14K SOLID GOLD BLUE TOPAZ HEART PENDANT NECKLACE STUD EARRINGS 17 CHAIN" is in sale since Sunday, September 6, 2020. This item is in the category "Jewelry & Watches\Fine Jewelry\Fine Jewelry Sets\Diamonds & Gemstones". The seller is "augdiggitydog" and is located in Delphos, Ohio. This item can be shipped to United States, Canada, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, Slovenia, Japan, Sweden, Belgium, France, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Bahamas, New Zealand, Switzerland, Norway, Croatia, Chile, Colombia, Costa rica, Antigua and barbuda, Aruba, Belize, Dominica, Grenada, Saint kitts and nevis, Saint lucia, Montserrat, Turks and caicos islands, Barbados, Bermuda, Bolivia, French guiana, Guernsey, Gibraltar, Guadeloupe, Iceland, Jersey, Liechtenstein, Luxembourg, Monaco, Martinique, Nicaragua, Paraguay, Uruguay, Cayman islands.