Back Search for Diamonds
The diamond you have selected is not currently available. For assistance finding one at the same or better quality and price, please call us at 1-888-565-7641.

0.53-Carat Blue Nile Signature Round Diamond

Top View Image - Sample diamond magnified Side View Image - Sample diamond magnified Top View Diagram - Actual diamond table measurements Side View Diagram - Actual diamond profile measurements  

0.53-Carat Blue Nile Signature Round Diamond

Bank Wire Price
4.9 (1558)
(1,558 customer ratings)
Stock number
Price per carat
Carat weight
Sig. Ideal
Length/width ratio
Depth %
Table %
Medium, Faceted
5.24 x 5.22 x 3.20 mm
All of our certified diamonds are backed by our Diamond Price Guarantee. Learn More

Need Help?

Your questions or feedback are always welcome at Blue Nile. Join in a conversation with one of our Diamond and Jewelry Consultants to help you make the right decision.

About Your Blue Nile Diamond

Cut: Signature Ideal

Signature Ideal cut: Top 1% of diamond quality - with precise proportions, polish and symmetry - allowing the diamond to reflect even more light than the standard Ideal cut.

Want to learn even more about cut? Learn More

A cut grade is the measure of a diamond's light performance. Cut with proper proportions, light is returned out of the top of the diamond. If it is cut too shallow, light leaks out of the bottom; too deep and it escapes out of the side.

Diamond Size: 0.53 Carat

The international unit of weight used for measuring diamonds and gemstones, 1 carat is equal to 200 milligrams, or 0.2 grams. A specific measurement of a diamond's weight, carat weight alone may not accurately represent a diamond's visual size. Learn More

We recommend considering carat weight along with two other influential characteristics: the overall dimensions and the cut grade of the diamond.

Learn More
.25 Ct. (4.1 mm)
.5 Ct. (5.1 mm)
.75 Ct. (5.8 mm)
1 Ct. (6.4 mm)
1.25 Ct. (6.9 mm)
1.5 Ct. (7.4 mm)
1.75 Ct. (7.8 mm)
2 Ct. + (8.1 mm)
dime for scale
17.9 mm  
Diamond Selected
Diamond Selected

Color: G

G color: The highest "near-colorless" grade. Color may be detectable when compared to much higher "colorless" grades. Excellent value.

Want to learn even more about color? Learn More

  • For the purist, look for a colorless diamond with a grade of D-F for a diamond with no discernible color.
  • For an excellent value in a diamond with little or no noticeable color to the unaided eye, look for a near-colorless grade of G-I
Not Carried At Blue Nile
Blue Nile Diamonds
Diamond Outline
Diamond Outline
Diamond Outline
Diamond Outline
Diamond Outline
Diamond Outline
Diamond Outline
Diamond Outline
Diamond Outline
Noticeable color

Clarity: VS1

VS1-VS2: Very slightly included. Minor inclusions ranging from difficult (VS1) to somewhat easy (VS2) to see at 10x magnification.

Want to learn even more about clarity? Learn More

  • Clarity refers to a diamond's relative absence of tiny, natural characteristics known as blemishes and inclusions.
  • Many of these characteristics are microscopic and do not affect a diamond's beauty in any discernible way.
Representative diamond under high magnification.

Diamond Price Guarantee

The Blue Nile Diamond Price Guarantee makes it easy to purchase diamonds with peace of mind. If you find a comparable GIA certified diamond at a lower price, call 1-888-565-7641. If the offer meets our qualifications, we'll match the price. There is no comparison when it comes to the value and quality of Blue Nile diamonds.

The following terms and conditions apply to our Diamond Price Guarantee program.

Learn More

Blue Nile Diamond Upgrade Program

  • All GIA and AGSL graded diamonds purchased from Blue Nile are eligible.
  • You will receive credit equal to 100% of the original price toward the purchase of a new diamond.
  • The price of your new diamond must be at least twice the price of your original diamond.
  • Your diamond must be in its original condition with the original diamond grading report.
  • Any damage to the original diamond may disqualify the diamond from the diamond upgrade program.

Learn More

Ratings and Reviews

total ratings
Sort by:
Viewing 0 of reviews

0.53-Carat Blue Nile Signature Round Diamond