Vintage Sterling Silver Diamond Cut Open Metal Work Heart-Egg Pendant ETC10164

This is a large sterling silver heart-egg pendant. The cut-out design is diamond cut to sparkle in the light. This pendant measures 1 7/8" long x 1 1/16" wide x 3/4" deep. Total weight is 16.2 grams. There are some black marks on one side that you can see in the pictures. I'm not sure what it is. There is no other damage. Light vintage wear can be expected.