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0.31-Carat Blue Nile Signature Round Diamond

This  Signature Ideal-cut I-color , and VS1-clarity Diamond comes accompanied by diamond grading reports from the GIA and GCAL.

This diamond is eligible for the Blue Nile Diamond Upgrade Program.

This diamond is not available for purchase.

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Diamond Grading Report

All Blue Nile Signature Collection diamonds are certified by the Gem Certification & Assurance Lab (GCAL) in addition to being graded by the GIA or AGSL . This provides you a second authoritative analysis of your diamond. GCAL also verifies that your diamond meets all the specific quality requirements of the Blue Nile Signature Collection.

Learn the definitions of the terms used in a diamond certificate.

GEMPRINT® is the world's most sophisticated, non-invasive, positive identification technology that records the unique optical 'fingerprint' of each diamond. Just like a human fingerprint, every diamond has a unique Gemprint® Invented in 1976, this patented and proven technology has been used by the FBI and Canadian Government.

Diamond Details

Stock number: LD02520296
Price: $672
Price per carat: $2,168
Carat weight: 0.31
Cut: Signature Ideal
Color: I
Clarity: VS1
Depth %: 61.1%
Table %: 56%
Polish: Excellent
Symmetry: Excellent
Girdle: Thin to Medium, Faceted
Culet: None
Fluorescence: None
Measurements: 4.42 x 4.40 x 2.69 mm
Cut: Blue Nile Signature Ideal
Fair | Good | Very Good | Ideal | Signature Ideal
This diamond is cut to more exacting standards than the finest graded cuts currently available. With a Signature cut, this diamond reflects the maximum brilliance. This is our finest grade of diamond cut.
Color: I
J | I | H | G | F | E | D
This diamond, when cut to ideal proportions, produces a warm brilliancy not found in the higher grade colors. I-color diamonds are less expensive than other diamonds, so you can buy a larger diamond for the same price as a higher color grade. Note: If this diamond has medium or strong blue fluorescence, its slight tint will be partially masked, making the diamond appear whiter to the eye.
Clarity: VS1
SI2 | SI1 | VS2 | VS1 | VVS2 | VVS1 | IF | FL
This diamond has few, very small inclusions. The inclusions are very difficult to see under a 10x power magnification, and are almost never visible to the unaided eye. VS1 grade diamonds present an excellent value in clarity because they are typically free of visible blemishes, and they are less expensive than higher clarity grades.

Customer Feedback

Average Rating 4.9
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Total Reviews 1352
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4.9 average customer rating for Blue Nile Signature Round Diamonds from 1352 reviews.

Anonymous  – Apr 15, 2014

Anonymous  – Apr 14, 2014

William J, ROMEOVILLE IL  – Apr 8, 2014

Timothy, CHICAGO IL  – Apr 8, 2014

Jason M., WASHOE VALLEY NV  – Apr 7, 2014

Anonymous  – Apr 7, 2014

Diamond Carat Size Chart

This print out illustrates how diamonds of different carat weights and shapes will appear when viewed from the top down.

Your diamond may differ from the printout in length/width ratio, table, and depth.
Diamond Carat Size Chart
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Shipping Information

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Included With Your Order:
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