< back Perpetual Motion Open Plane Ring $7,350 18k yellow gold, green tourmaline and diamond. Product code: PM-RN-OPPLANE details Set in Motion: edged in diamond pavé, an oversized rectangular ring boasts a playful detail — two faceted green tourmalines that glide up and down in perfect unison. 6mm faceted green tourmaline spheres (3.07ct) 0.46ct white diamonds Size & Fit Face Length: 2.4cm (approximately) Face Width: 1.3cm (approximately) Ring measurements can be found in the link below US sizing Product code: PM-RN-OPPLANE View Disclaimer size guide select color yellow gold w/ green tourmaline Select Size add to bag Share Twitter Facebook Email Pinterest Custom Order