A lovely old mine cut diamond with an open culet, set as a ring in platinum and 18ct gold. 
 
We have used a round section "doughnut" style band, to make this ring perfect for stacking. 
 
Full UK hallmark for 18ct gold, London 2026
Weight approx 3.17g
Diamond 0.29ct 
Approx G/H colour, SI clarity
Finger size UK O / USA 7.5 - resizing possible 
Width of band approx  2mm
Width of setting approx 4.8mm
Tested as natural, earth mined diamond