14K Two-Tone Rose and White Gold Twogether 1/5cttw Diamond Necklace. This freeform version of the classic twogether design features .20cttw of round diamonds. Comes with an 18" 14K rose gold rope chain. When ONE plus ONE equals US, twogether diamond jewelry is designed to celebrate the Twoday, Twonight and Twomorrow of your relationship. 5R1