Channel Set Diamond Ring. 32 fine little round brilliant white Diamonds in this ring, each little round Diamond exactly 1.7mm across, and each set neatly, one Diamond after the other, around the whole circumference of  the ring; the whole ring created, crafted in Sydney, the setting of the 32 gemstones the craft of a Sydney professional gemstone setter, one of Sydney’s best.
The setter is presented with the ridged band, only 1.3mm in depth, the interior gap between the ridges less than the 1.7mm diameter of the gemstones. The setter must drill a hole in the bottom of the channel, in which to seat the Diamond, then score out two cuts in the inside walls of the channel; the Diamond must then be settled, its culet in the hole and girdle in one of the side wall cuts, before being pushed down, by judicious force, to slot its girdle into its other wall cut. And then the next Diamond, and the next, and the next.
Very particular work, highly skilled.
The cost of the professional gemstone setting of this ring, hand-worked in Sydney, constitutes over 10% of the retail price.