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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 £12,529 GBP
$16,787 USD
As of October 30, 2026
Save £6,870 GBP (35%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £19,398 GBP 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 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 29, 2026, with prices from £12,529 to £19,398, a £6,870 spread on the same certified stone. MOH London lists it at £19,398. 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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £19,398 GBP|Low: £9,837 GBP|High: £19,527 GBP|Avg: £14,646 GBP|+1.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 29, 2026
Retailer 8£12,529 GBP
Retailer 7£12,537 GBP
Retailer 5£13,069 GBP
Retailer 10£13,196 GBP
Retailer 11£13,637 GBP
Retailer 4£14,319 GBP
Retailer 3£14,774 GBP
Retailer 2£14,991 GBP
Retailer 9£15,342 GBP
Retailer 6£17,503 GBP
MOH London£19,398 GBP

25 data points across 11 retailers

11 retailers£12,529 GBP to £19,398 GBP

A
Cheapest Retailer
-
£12,529 GBP
$16,787 USD
A
Retailer 2
-
£12,537 GBP
$16,798 USD
View
A
Retailer 3
-
£13,069 GBP
$17,511 USD
View
Final sale: no returns
A
Retailer 4
-
£13,196 GBP
$17,681 USD
View
A
Retailer 5
-
£13,637 GBP
$18,272 USD
View
A
Retailer 6
-
£14,319 GBP
$19,186 USD
View
A
Retailer 7
-
£14,774 GBP
$19,795 USD
View
A
Retailer 8
-
£14,991 GBP
€19,130 EUR
View
B+
Retailer 9
-
£15,342 GBP
$20,557 USD
View
B+
Retailer 10
-
£17,503 GBP
$23,452 USD
View
Most Expensive
B+
MOH London
54AFC362E · Oct 29
£19,398 GBP
View
10 more retailers have this diamond
Prices start from £12,529 GBPSave up to £6,870 GBP

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
£12,529 GBP