I just did a cluster setting last night - a 14 x 10mm center stone
(set first) surrounded by 18 2mm accent stones (cornflower blue
sapphire). The setting is constructed so that the outer edge of each
accent stone is held in place by a single prong but the inner edge is
held in place by the center stone above it, with just enough contact
to make it hold.
Brian Corll
Brian Corll, Inc.
1002 East Simpson Street
Mechanicsburg, PA 17055