18 Karat Tri-Gold Diamond Ring 0.29 Carat Total Diamond Weight . This stacked ring features three colors of 18kt gold. Yellow gold holds the collection’s signature latticed motif. A solid rose gold band symbolizes heartfelt connections. The bold loop of white gold stands for your commitments to make your dreams a reality. In the centre, a 0.29 ct ring of glimmering diamonds. This ring measures 10.50 mm wide and 21.04 mm in diameter on the outside,1.80 mm thick.