Details Lola Brooks 18k yellow gold & emerald-cut tanzanite ring, size 7 3/4. The 6.35ct stone measures approximately 5/8″ x 3/8″ & the 18k yellow gold band tapers from approximately 1/8″ to 1/16″ in width - tanzanite, 6.35ct - 18k yellow gold - size 7 3/4 Sizing This ring can be resized. Please allow 4 - 6 weeks. Inquire about sizing fee.