White Gold Blue Topaz Engagement Ring. This ring is set with one natural Round Blue Topaz in the center. This Blue Topaz measures 10 mm in diameter and weighs 4 carats. There are also four genuine Round Diamonds set in this ring. These diamonds are H color, I1 clarity and weigh a total of .04 carat. This ring is 10KT White Gold, weighs 3.1 grams and is a finger size 6 1/2, which can be resized (please inquire about sizing with the finger size you need). This ring will be accompanied by an appraisal by a GIA Certified Diamond Grader with the retail replacement value of $1,485.00. I will ship this ring promptly in a gift box.