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 00353 1 899 1351.

0.25-Carat Round Diamond

EUR 323.07
Price includes VAT
EUR 318.22
Bank Wire Price
Stock number
Price per carat
EUR 1,292
Carat weight
Very Good
Length/width ratio
Depth %
Table %
Very Good
Medium to Slightly Thick
4.10 x 4.07 x 2.43 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 Jewellery Consultants to help you make the right decision.

Sample Photo Sample Photo Diamond Diagram Diamond Diagram
Diamond Grading Report

Find Similar Diamonds

Based on information about this diamond, we can help you find one that will match.

About Your Blue Nile Diamond

Diamond Size: 0.25 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)
17.9 mm  
Diamond Selected
Diamond Selected

Cut: Very Good

Very Good cut: Very slightly less measurable fire or sparkle than an ideal cut diamond, at a more affordable price.

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 Cut

Colour: F

F colour: A "colourless" grade appreciated best set in platinum or white gold. Faint colour detectable by a trained gemmologist.

Want to learn even more about colour? Learn More

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

Clarity: SI1

SI1-SI2: Slightly included. Inclusions noticeable at 10x. Best value if eye-clean. SI2 inclusions may be detectable to a keen unaided eye.

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 00353 1 899 1351. 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 certified 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

0.25-Carat Round Diamond

EUR 323.07
Price includes VAT