Bell & Bird Single-Faced Knife Edge Diamond Eternity BandWe designed our knife edge band after an antique French alliance band we found in Paris. This version has a single knife face pav set with single cut diamonds. The ring can be made in our signature 'old' gold or our 18k yellow gold. A size 6 ring has approximately 0. 28 carats of total diamond weight. The stones are of high quality and are of approximate grade of F+ color and VS VVS clarity. Measures 2. 3mm at the widest point. Bell & Bird Single