Oiling is a standard industry practice for enhancing emeralds. Most, but not all, emeralds receive oil treatments. These gems may lose their oil over time or by accident. However, you can re-oil emeralds. This emerald-cut emerald received a traditional oil treatment. © Dan Stair Custom Gemstones. Used with permission.
Article: How to Re-Oil Emeralds Safely and Easily
Credit: Dan Stair Custom Gemstones
|Natural or man made||Natural|