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Round|Natural|GIA

2.51ct E SI2 Round Natural Diamond

EX • E/SI2 • GIA 2231730419

Certificate GIA 2231730419

Diamond specifications and retailer prices

From £14,980 GBP
$20,072 USD
As of October 30, 2026
Save £8,289 GBP (36%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £23,269 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 2.51ct natural round diamond

This 2.51ct natural round sits in the two to three carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2231730419. Listed at 7 retailers as of October 29, 2026, with prices from £14,980 to £23,269, a £8,289 spread on the same certified stone. MOH London lists it at £23,269. 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
E
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 2231730419
Dimensions8.65 × 8.59 × 5.38 mm
L/W Ratio1.01
Girdle conditionSlightly Thick
Key to symbols
Crystal, Needle
Top View
8.65 mm8.59 mm2.51 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2231730419
Side View
Table 58.0%Crown 36°Girdle: Slightly ThickPavilion 40.6°Culet: NoneDepth 62.4%

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: Oct 30
Current: £23,269 GBP|Low: £14,980 GBP|High: £23,910 GBP|Avg: £18,422 GBP|-1.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 30, 2026
Retailer 6£14,980 GBP
Retailer 9£16,797 GBP
Retailer 5£16,885 GBP
Retailer 2£17,103 GBP
Retailer 7£17,177 GBP
Retailer 3£17,722 GBP
Retailer 8£18,369 GBP
Retailer 4£20,995 GBP
MOH London£23,269 GBP

31 data points across 9 retailers

7 retailers£14,980 GBP to £23,269 GBP

A
Cheapest Retailer
-
£14,980 GBP
$20,072 USD
A
Retailer 2
-
£16,885 GBP
$22,624 USD
View
A
Retailer 3
-
£17,103 GBP
View
A
Retailer 4
-
£17,177 GBP
$23,015 USD
View
A
Retailer 5
-
£17,722 GBP
$23,745 USD
View
B+
Retailer 6
-
£20,995 GBP
$28,131 USD
View
Most Expensive
B+
MOH London
47F7D996C · Oct 29
£23,269 GBP
View
6 more retailers have this diamond
Prices start from £14,980 GBPSave up to £8,289 GBP

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 Round
£14,980 GBP