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Round|Natural|GIA

2.51ct E SI2 Round Natural Diamond

EX • E/SI2 • GIA 2557717803

Certificate GIA 2557717803

Diamond specifications and retailer prices

From €19,388 EUR
$21,660 USD
As of October 29, 2026
Save €11,428 EUR (37%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: €30,815 EUR at MOH London · As of October 26, 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 2557717803. Listed at 7 retailers as of October 26, 2026, with prices from €19,388 to €30,815, a €11,428 spread on the same certified stone. MOH London lists it at €30,815. 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
FluorescenceFaint
Crown angle35.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 2557717803
Dimensions8.64 × 8.69 × 5.38 mm
L/W Ratio1.01
Girdle conditionSlightly Thick
Key to symbols
Twinning Wisp, Cloud, Crystal, Feather, Needle
Top View
8.64 mm8.69 mm2.51 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2557717803
Side View
Table 58.0%Crown 35.5°GirdlePavilion 40.8°CuletDepth 62.0%

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 29
Current: €30,815 EUR|Low: €19,388 EUR|High: €31,929 EUR|Avg: €25,425 EUR|-2.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 30, 2026
Retailer 7€19,388 EUR
Retailer 3€22,740 EUR
Retailer 5€22,837 EUR
Retailer 6€23,562 EUR
Retailer 2€27,191 EUR
Retailer 4€27,914 EUR
MOH London€30,815 EUR

40 data points across 7 retailers

7 retailers€19,388 EUR to €30,815 EUR

A
Cheapest Retailer
-
€19,388 EUR
$21,660 USD
A
Retailer 2
-
€22,740 EUR
£20,004 GBP
View
A
Retailer 3
-
€22,837 EUR
$25,514 USD
View
A
Retailer 4
-
€23,562 EUR
$26,324 USD
View
B+
Retailer 5
-
€27,191 EUR
$30,378 USD
View
B+
Retailer 6
-
€27,914 EUR
$31,186 USD
View
Most Expensive
B
MOH London
43443D64C · Oct 26
€30,815 EUR
£27,108 GBP
View
6 more retailers have this diamond
Prices start from €19,388 EURSave up to €11,428 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
€19,388 EUR