Channel set diamond and tanzanite ring has a marquise shape tanzanite in the centre measuring 8 x 4mm. On either side there is a channel with four diamonds. Next to this is a channel with three diamonds. The total diamond weight is .30 total weight. Coloured stone ring is 14kt. yellow gold. The spread across the top is 17mm and 14mm in the centre, tapering down to 3mm in the back. Pretty purple hue.