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2.51ct G SI2 Round Natural Diamond

EX • G/SI2 • HRD 260000141180

Certificate HRD 260000141180

Diamond specifications and retailer prices

From $23,898 AUD
$16,787 USD
As of October 31, 2026
Save $12,907 AUD (35%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $36,805 AUD 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 SI2 clarity (slightly-included), with a top-tier cut grade and certified by HRD 260000141180. Listed at 11 retailers as of October 31, 2026, with prices from $23,898 to $36,805, a $12,907 spread on the same certified stone. MOH London lists it at $36,805. 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
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle41.2°
OriginNatural
Grading LabHRD
CertificateHRD 260000141180
Dimensions8.65 × 8.70 × 5.45 mm
L/W Ratio1.01
Girdle conditionMedium
Top View
8.65 mm8.70 mm2.51 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateHRD 260000141180
Side View
Table 55.0%Crown 34.5°GirdlePavilion 41.2°Culet: NoneDepth 62.8%

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 31
Current: $36,805 AUD|Low: $18,764 AUD|High: $37,248 AUD|Avg: $27,936 AUD|+1.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 8$23,898 AUD
Retailer 7$23,914 AUD
Retailer 5$24,929 AUD
Retailer 10$25,171 AUD
Retailer 11$26,012 AUD
Retailer 4$27,313 AUD
Retailer 3$28,180 AUD
Retailer 2$28,468 AUD
Retailer 9$29,265 AUD
Retailer 6$33,386 AUD
MOH London$36,805 AUD

26 data points across 11 retailers

11 retailers$23,898 AUD to $36,805 AUD

A
Cheapest Retailer
-
$23,898 AUD
$16,787 USD
A
Retailer 2
-
$23,914 AUD
$16,798 USD
View
A
Retailer 3
-
$24,929 AUD
$17,511 USD
View
Final sale: no returns
A
Retailer 4
-
$25,171 AUD
$17,681 USD
View
A
Retailer 5
-
$26,012 AUD
$18,272 USD
View
A
Retailer 6
-
$27,313 AUD
$19,186 USD
View
A
Retailer 7
-
$28,180 AUD
$19,795 USD
View
A
Retailer 8
-
$28,468 AUD
€19,045 EUR
View
B+
Retailer 9
-
$29,265 AUD
$20,557 USD
View
B+
Retailer 10
-
$33,386 AUD
$23,452 USD
View
Most Expensive
B+
MOH London
54AFC362E · Nov 1
$36,805 AUD
£20,357 GBP
View
10 more retailers have this diamond
Prices start from $23,898 AUDSave up to $12,907 AUD

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
$23,898 AUD