Bell & Bird Emerald Pendant NecklaceThis necklace features a 1. 36 carat emerald, Colombian in origin. The emerald is set in our pie crust setting in 18k old gold. Suspended from a modern 16 inch rolo chain. Bell and Bird Pie Crust settings: In the early 20th century, when platinum jewelry was still in its infancy, the delicate creations of the Belle poque introduced millegrain, a setting technique marked by rows of tiny beaded edges that surrounded diamonds with a soft texture. For