Stone: EmeraldSize: 2mm to 5 mmShape: RoundQuality: Very GoodOrigin: Zambia, Africa Weight per Piece:2 mm: 0.038 carat2.5 mm: 0.069 carat2.75 mm: 0.102 carat3 mm: 0.127 carat3.25 mm: 0.152 carat3.5 mm: 0.181 carat3.75 mm: 0.227 carat4 mm: 0.266 carat4.25 mm: 0.300 carat4.5 mm: 0.383 carat5 mm: 0.450 carat Beautiful range of Natural Emerald Rounds. Very good quality precious gemstones with fine lustre and very low number of inclusions. We have a wide variety of Emerald rounds listed on our store, each listing is differentiated by a three digit number at the end of the title which gives information about the quality of the stone. The scale of each digit is 1 to 9The first digit tells the deepness of the green(the higher the number, deeper the green, 1 being the lightest and 9 being the deepest green), the second digit depicts the purity and lustre of the stone, (1-4 containing no lustre and plenty inclusions, the higher the number more light and fire in the stone) and the last digit depicts the inclusions and cracks, the higher the number, lesser the inclusions in the piece. To check out our emerald collection, input in the search box on our store “Emerald (Required shape/quality)” The mm tolerance is +/- 0.15 mm Please look at the linked images for reference --------For any inquiries regarding the products, bulk orders or customisation, please feel free to leave a message. We usually reply within 1-2 day business days--------- Made in India Your loose Emerald will be shipped in an extremely secure package to make sure its safe arrival at your door. We ship daily i.e. Monday to Saturday so that your product reaches you as soon as possible