The pair of earrings do not have a gold mark. They were tested with nitric acid and a "kee" tester. The earrings are solid 18k white gold and the omega backs have been tested to be 14k solid white gold. Together they weigh 5.8 grams. They are 15/16" long and 3/8" wide. At the bottom of each is a oval shape blue natural sapphire. The two sapphires have an approx total weight of 1.00 cts. Surrounding each sapphire and up the earring are round brilliant cut natural diamonds . The two earrings have a total of 52 diamonds with an approx total weight of .75 cts. The diamonds are SI2 and SI3 . The earrings are for pierced ears and have omega backs.