Details Gabriella Kiss 18k yellow gold & large oval blue tourmaline ring, size 6 3/4. The 6.23ct stone measures approximately 3/4"x 1/2" & is set in Gabriella's signature scalloped setting. - tourmaline 6.23ct - 18k yellow gold - size 6 3/4 Sizing This ring can be resized. Please allow 2 - 6 weeks. Inquire about sizing fee.