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Round|Natural|GIA

2.51ct G SI1 Round Natural Diamond

EX • G/SI1 • GIA 2231668058

Certificate GIA 2231668058

Diamond specifications and retailer prices

From €22,066 EUR
CA$34,240 CAD
As of October 30, 2026
Save €14,177 EUR (39%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: €36,243 EUR at MOH London · As of November 1, 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 G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2231668058. Listed at 12 retailers as of October 30, 2026, with prices from €22,066 to €36,243, a €14,177 spread on the same certified stone. MOH London lists it at €36,243. 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
G
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 2231668058
Dimensions8.62 × 8.71 × 5.36 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
8.62 mm8.71 mm2.51 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2231668058
Side View
Table 58.0%Crown 36°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 61.9%

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: €36,243 EUR|Low: €22,066 EUR|High: €37,652 EUR|Avg: €26,665 EUR|-2.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 1, 2026
Retailer 6€22,066 EUR
Retailer 3€22,205 EUR
Retailer 5€23,452 EUR
Retailer 7€23,590 EUR
Retailer 4€24,072 EUR
Retailer 12€24,174 EUR
Retailer 8€25,477 EUR
Retailer 2€27,356 EUR
Retailer 9€27,365 EUR
Retailer 11€27,610 EUR
Retailer 10€27,730 EUR
MOH London€36,243 EUR

27 data points across 12 retailers

12 retailers€22,066 EUR to €36,243 EUR

A
Cheapest Retailer
-
€22,066 EUR
CA$34,240 CAD
B+
Retailer 2
-
€22,205 EUR
$24,807 USD
View
B+
Retailer 3
-
€23,452 EUR
£20,630 GBP
View
B+
Retailer 4
-
€23,590 EUR
$26,355 USD
View
B+
Retailer 5
-
€24,072 EUR
$26,893 USD
View
B+
Retailer 6
-
€24,174 EUR
$27,007 USD
View
B+
Retailer 7
-
€25,477 EUR
$28,463 USD
View
B+
Retailer 8
-
€27,356 EUR
View
B+
Retailer 9
-
€27,365 EUR
$30,572 USD
View
B+
Retailer 10
-
€27,610 EUR
$30,846 USD
View
B
Retailer 11
-
€27,730 EUR
$30,980 USD
View
Most Expensive
B
MOH London
52CCB158F · Nov 1
€36,243 EUR
£31,883 GBP
View
11 more retailers have this diamond
Prices start from €22,066 EURSave up to €14,177 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
€22,066 EUR