10k Yellow Gold 1.00TDW Diamond Quad Halo Stud Earrings. This brilliant diamond earring showcases a double halo of sparkling diamonds to frame your centre quad princess cut diamonds to give it a rich and glamourous look. Dress up your look with the breathtaking sparkle of the luscious 8 princess cut diamonds totalling 0.36 carat of diamond and a double halo of starlight-filled smaller round diamonds totalling 0.64 carats.