5mm Round Cut Natural Colombian Emerald Loose Gemstone. A medium tone of a green hue with a strong saturation. C arat wt: 0.73. Exact dimensions: 5.25mm Diameter x 4.41mm Deep. Treatment: Light colorless oil (cedar). The photos were taken using a digital SLR camera mounted with a 60mm macro lens. I believe the photos are accurate images of the stones' clarity and color but please keep in mind that no two monitors will show color and tone the same. Check out my other items. Be sure to add me to your favorites list. The item "5mm Round Cut Natural Colombian Emerald Loose Gemstone" is in sale since Sunday, March 04, 2018. This item is in the category "Jewelry & Watches\Loose Diamonds & Gemstones\Loose Gemstones\Emerald\Natural Emeralds". The seller is "importmanagers" and is located in Cocoa, Florida. This item can be shipped to United States, all countries in Europe, all countries in continental Asia, Canada, Australia.