Details Lola Brooks 18k yellow gold & oval blue green tourmaline cast ring, size 6 3/4. The 13.71ct stone measures approximately 5/8" x 7/16", & is set in Lola’s signature cast bezel setting. The comfort fit band tapers from approximately 1/4″ to 1/8″ in width. - tourmaline, 13.71ct - 18k yellow gold - size 6 3/4 Sizing This ring can be resized. Please allow 4 - 6 weeks. Inquire about sizing fee.