Details Lola Brooks 18k yellow gold & oval burgundy tourmaline lens ring, size 7. The 10.89ct stone measures approximately 7/8″ x 5/8″ & is set on an 18k yellow gold band that tapers from approximately 1/8″ to 1/16″. - tourmaline, 10.89ct - 18k yellow gold - size 7  Sizing This ring can be resized. Please allow 4 - 6 weeks. Inquire about sizing fee.