Diana triangle halo ring in gold set with Emerald and Diamonds. Emerald: ~0.78 carats (6mm x 7mm triangle) Diamond D-F VS+ grade: ~0.22 carats (15 of 1.5mm round) Crown dimensions: 10.0mm height x 9.1mm width x 5.4mm depth Band dimensions: 2.1mm width x 1.7mm thick International ring size conversion chart . For custom size, specify details in the order notes. Blog: Organising Your Jewellery Box for Optimal Protection Blog: How Lab Grown Diamond Rings are Redefining Traditions