As the leading online diamond retailer, Blue Nile offers the largest collection of the world's finest cut diamonds. Pre-selected for exceptional quality, the cut, color, and clarity of Blue Nile loose diamonds are evaluated based on a standardized grading scale. Also, each loose diamond is accompanied by a grading report from either GIA or AGSL, independent diamond grading labs with the most stringent grading scales of all labs. [ Source: www.bluenile.com ]
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Blue Nile Jewelry: Blue Nile offers the highest-quality certified diamonds and fine jewelry at outstanding prices. Over 80,000 couples have chosen to get engaged with a Blue Nile diamond. 30-Day Returns and Free Shipping on every order. Loose Diamonds, Engagement Rings, Wedding & Anniversary Rings, Earrings, Necklaces & Pendants, Watches ... and more! Buying jewelry at Blue Nile is so easy!
The GIA and AGSL are the two most widely respected authorities on diamonds, so Blue Nile only offers diamonds with grading reports from these laboratories. The GIA (Gemological Institute of America) set the standard for diamond grading and gemological identification, and their grading system serves as the international gem and jewelry industry's benchmark credentials. This report describes the following:
Shape and Cutting Style – The diamond shape and cutting style.
Measurement – The diamond dimensions in millimeters.
Weight – Weight of diamond listed to the nearest hundredth of a carat.