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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 €17,966 EUR
$20,072 USD
As of October 30, 2026
Save €9,941 EUR (36%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: €27,908 EUR 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 €17,966 to €27,908, a €9,941 spread on the same certified stone. MOH London lists it at €27,908. 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
Color
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: €27,908 EUR|Low: €17,966 EUR|High: €28,676 EUR|Avg: €22,094 EUR|-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€17,966 EUR
Retailer 9€20,145 EUR
Retailer 5€20,251 EUR
Retailer 2€20,512 EUR
Retailer 7€20,600 EUR
Retailer 3€21,254 EUR
Retailer 8€22,031 EUR
Retailer 4€25,180 EUR
MOH London€27,908 EUR

31 data points across 9 retailers

7 retailers€17,966 EUR to €27,908 EUR

A
Cheapest Retailer
-
€17,966 EUR
$20,072 USD
A
Retailer 2
-
€20,251 EUR
$22,624 USD
View
A
Retailer 3
-
€20,512 EUR
£18,044 GBP
View
A
Retailer 4
-
€20,600 EUR
$23,015 USD
View
A
Retailer 5
-
€21,254 EUR
$23,745 USD
View
B+
Retailer 6
-
€25,180 EUR
$28,131 USD
View
Most Expensive
B+
MOH London
47F7D996C · Oct 29
€27,908 EUR
£24,550 GBP
View
6 more retailers have this diamond
Prices start from €17,966 EURSave up to €9,941 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 Round
€17,966 EUR