Colombian Emerald Diamond, Gold Ring The ring features an oval-shaped Colombian Emerald 12. Cts enhanced by full-cut diamonds weighing a total of approximately 6 carats, set in 18k gold with over 1 carat of diamonds. A GIA report stating Natural Emerald. Condition Report: Diamonds: Avg Color: G-H-I Avg Clarity: SI Shape(s): full-cut Colored Gems: Certified Gems: Gem: 1 Lab: GIA Carat: 12 Shape: Oval Treatment: None Type: Emerald Metals: Gold Overall Condition: Very Good. The item "Very large 13 carats EMERALD GIA GOLD RING" is in sale since Saturday, November 30, 2019.This item is in the category "Jewelry & Watches\Fine Jewelry\Fine Rings\Gemstone". The seller is "ruby-sapphire-emerald" and is located in Vonore, Tennessee. This item can be shipped worldwide.