Jewelry › 18k two-tone diamond ring Image 1 of 2 Image 2 of 2 18k two-tone diamond ring $8,400.00 18k two-tone gold ring featuring 0.55ct of round and princess cut diamonds. RT84027 All weights are estimated Add To Cart Added! 18k two-tone gold ring featuring 0.55ct of round and princess cut diamonds. RT84027 All weights are estimated You Might Also Like Tiffany & Co. Paloma Picasso 18k white gold diamond infinity heart ring 14k yellow gold diamond swirl ring Retro 14k rose gold ruby and diamond ring 14k yellow gold enamel moveable flower ring Platinum and 18k rose gold pink diamond halo ring