Roman glass, Moonstone & Peruvian Opal Necklace

This necklace started with the Roman Glass piece in the center. There is a hole in the silver behind it where it pokes through to the back. So when it’s in the light it will shine through. The Roman Glass is over 2,000 years old and is surrounded by rainbow moonstones. 
The dangle is moonstone, Roman Glass and than this gorgeous chunk of Peruvian Opal. 
It’s about 2 1/2” wide x 4 1/2” long. All Sterling Silver on a heavy rolo chain with a handmade clasp. Earrings to match. I’ve also added some photos of how it was made. Questions are always welcome. Hugs♥️