These are pendants from the Slingshot collection, designed by and made exclusively for Christine Sadler.
One side of the centre stone has a rubbed over edge and the opposite point has a V shaped claw. The setting design has a wonderful tension as the stone is poised to protect the wearer.
The pendants are shown here in 9ct white gold but they can come in other precious metals and with other gemstones. The bail of the pendant is handset with three brilliant cut diamonds. The large trillion cut stone measures 6mm. It is featured here from left to right in Aquamarine, yellow sapphire and tanzanite.