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2.51ct G SI1 Round Natural Diamond

EX • G/SI1 • GIA 2547204671

Certificate GIA 2547204671

Diamond specifications and retailer prices

From $22,707 USD
HK$177,400 HKD
As of November 1, 2026
Save $17,905 USD (44%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $40,612 USD at MOH London · As of November 2, 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 2547204671. Listed at 18 retailers as of November 1, 2026, with prices from $22,707 to $40,612, a $17,905 spread on the same certified stone. MOH London lists it at $40,612. 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 angle33.5°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 2547204671
Dimensions8.67 × 8.63 × 5.37 mm
L/W Ratio1.00
Top View
8.67 mm8.63 mm2.51 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2547204671
Side View
Table 60.0%Crown 33.5°Girdle: Slightly ThickPavilion 41.6°Culet: NoneDepth 62.1%

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 1
Current: $40,612 USD|Low: $22,707 USD|High: $41,101 USD|Avg: $29,174 USD|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 3, 2026
Retailer 9$22,707 USD
Retailer 3$26,004 USD
Retailer 6$26,206 USD
Retailer 2$26,237 USD
Retailer 8$27,087 USD
Retailer 7$27,304 USD
Retailer 10$28,171 USD
Retailer 11$29,254 USD
Retailer 4$31,413 USD
Retailer 5$35,957 USD
MOH London$40,612 USD

42 data points across 11 retailers

18 retailers$22,707 USD to $40,612 USD

A
Cheapest Retailer
-
$22,707 USD
HK$177,400 HKD
A
Retailer 2
-
$23,675 USD
View
B+
Retailer 3
-
$25,310 USD
View
B+
Retailer 4
-
$26,004 USD
View
Retailer 5
-
$26,206 USD
A$40,316 AUD
View
Price last confirmed 29 days ago
B+
Retailer 6
-
$26,237 USD
£20,659 GBP
View
B+
Retailer 7
-
$26,622 USD
View
B+
Retailer 8
-
$27,087 USD
View
B+
Retailer 9
-
$27,304 USD
View
B+
Retailer 10
-
$27,796 USD
View
B+
Retailer 11
-
$28,080 USD
View
B+
Retailer 12
-
$28,080 USD
View
B+
Retailer 13
-
$28,171 USD
View
B+
Retailer 14
-
$29,010 USD
View
B+
Retailer 15
-
$29,254 USD
View
B
Retailer 16
-
$31,413 USD
€29,917 EUR
View
B
Retailer 17
-
$35,957 USD
ZAR 580,895 ZAR
View
Most Expensive
B
MOH London
B5DB54B5F · Nov 2
$40,612 USD
£31,978 GBP
View
17 more retailers have this diamond
Prices start from $22,707 USDSave up to $17,905 USD

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
$22,707 USD