ALGT Certified Emerald (Green, GIA Certified, 2.91 Ct center stone, (1) Pcs-Emerald (0.51) Ct, (16) Pcs-Diamonds (0.56) Ct, (52) Pcs-18k White Gold And Yellow Gold Ring Jewelry Type: Ring Condition: New Metal Type And Carat: 18 K White Gold And Yellow Gold Jewelry Size: (54) Mm Gender: Women Total Weight: 5.84 Grams Gold Net Weight: 5.05 Grams Certificate Available: Yes Certificate Issued By: Antwerp Laboratory For Gemstone Testing (ALGT) Certificate Number: 43825139 Main Stone Details: Main Stone Name: Emerald Number Of Main Stones: 1 Pcs Shape And Cut: Oval, Mixed Cut Main Stone Carat Weight: 2.91 Ct Measurements: (10.00 x 7.70 x 6.06) Mm Main Stone Color: Vivid Green Main Stone Transparency: Transparent Main Stone Treatment: Clarity Enhanced (Oiled) Origin: Sri Lanka (Seller's Opinion) Surrounding Stone Details: Surrounding Stone Name: Emerald Surrounding Stone Carat Weight: 0.51 Ct Number Of Surrounding Stones: 16 Pcs Shape And Cut: Rectangle & Trapezoid, Mixed Cut Measurements: (2.40 x 1.60 x 1.20) Mm Surrounding Stone Color: Green to Intense Green Surrounding Stone Treatment: Clarity Enhanced (Oiled) Surrounding Stone Details: Surrounding Stone Name: Natural Diamonds Surrounding Stone Carat Weight: 0.56 Ct Number Of Surrounding Stones: 52 Pcs Shape And Cut: Round Brilliant Variation Measurements: (1.30 - 1.60 x 0.96) Mm Surrounding Stone Color: E-F-G Surrounding Stone Treatment: No Treatment (Natural) Diamond Clarity Grade: SI - I2 Diamond Cut Grade: Good - Very Good