Radiant|Natural|GIA

2.51ct F SI1 Radiant Natural Diamond

ID • F/SI1 • GIA 2557494692

Certificate GIA 2557494692

Diamond specifications and retailer prices

From €21,674 EUR
$24,310 USD
As of November 2, 2026
3 retailers carry this diamond
Most expensive: €24,541 EUR at Blue Nile · As of October 22, 2026
View at Blue Nile

About this 2.51ct natural radiant diamond

This 2.51ct natural radiant sits in the two to three carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2557494692. Listed at 3 retailers as of November 2, 2026. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

2.51
Carat
F
Color
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2557494692
Dimensions9.01 × 6.93 × 4.66 mm
L/W Ratio1.30
Top View
9.01 mm6.93 mm2.51 ctF / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2557494692
Side View
Table 68.0%CrownGirdle: STK-POLPavilionCulet: NoneDepth 67.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: €24,541 EUR|Low: €20,484 EUR|High: €24,998 EUR|Avg: €22,437 EUR|-1.8%
Blue Nile
Retailer 2
Retailer 3
Retailer 4
October 29, 2026
Retailer 4€20,484 EUR
Retailer 2€21,674 EUR
Retailer 3€21,887 EUR
Blue Nile€24,541 EUR

10 data points across 4 retailers

3 retailers

Retailer 1
-
€20,484 EUR
$22,975 USD
Price last confirmed 12 days ago
A
Retailer 2
-
€21,674 EUR
$24,310 USD
View
Most Expensive
Blue Nile
30354551 · Oct 22
€24,541 EUR
$27,525 USD
View
Price last confirmed 11 days ago
2 more retailers have this diamond
Prices start from €21,674 EUR

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
2.51ct Radiant
€21,674 EUR