18ct Yellow Gold Ruby and Diamond Drop Stud Earrings. 03-13-275. These elegant 18 carat yellow gold stud earrings feature brilliant cut claw set diamonds set above two stunning rubies. The total diamond carat weight is 0.07 and the total ruby carat weight is 0.78. Completed with secure post and butterfly fittings. We have an expert team of gemstone and diamond specialists who handpick and grade each jewel to meet our high standards and a team of talented in house designers who combine their talents to bring you our exclusive Precious Gemstone collection. You can find other ruby pieces online and in store to compliment these earrings. All articles are lovingly and securely dispatched with our elegant jewellery packaging.  Dimensions: 7mm x 4mm.