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2.51ct G SI1 Round Natural Diamond

EX • G/SI1 • GIA 6562074899

Certificate GIA 6562074899

Diamond specifications and retailer prices

From £24,096 GBP
As of October 30, 2026
11 retailers carry this diamond
Most expensive: £29,365 GBP at Cape Diamonds · As of September 25, 2026
View at Cape Diamonds

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 6562074899. Listed at 11 retailers as of October 30, 2026. 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
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6562074899
Dimensions8.59 × 8.63 × 5.40 mm
L/W Ratio1.00
Culet sizeNone
Key to symbols
Cloud, Crystal, Feather, Needle
Top View
8.59 mm8.63 mm2.51 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6562074899
Side View
Table 58.0%Crown 36°GirdlePavilion 40.8°Culet: NoneDepth 62.7%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £29,365 GBP|Low: £19,250 GBP|High: £34,237 GBP|Avg: £23,789 GBP
Cape Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
October 30, 2026
Retailer 3£19,452 GBP
Retailer 14£19,747 GBP
Retailer 9£21,061 GBP
Retailer 12£21,088 GBP
Retailer 17£21,408 GBP
Retailer 7£21,690 GBP
Retailer 10£22,027 GBP
Retailer 5£22,594 GBP
Retailer 15£22,774 GBP
Retailer 6£23,188 GBP
Retailer 4£23,497 GBP
Retailer 2£24,096 GBP
Retailer 11£24,151 GBP
Retailer 8£24,401 GBP
Retailer 13£26,224 GBP
Cape Diamonds£29,365 GBP
Retailer 16£34,237 GBP

30 data points across 17 retailers

11 retailers

Retailer 1
-
£19,747 GBP
$26,459 USD
Price last confirmed 17 days ago
Retailer 2
-
£21,408 GBP
A$44,129 AUD
View
Price last confirmed 39 days ago
Retailer 3
-
£21,690 GBP
$29,062 USD
View
Price last confirmed 17 days ago
Retailer 4
-
£22,027 GBP
$29,514 USD
View
Price last confirmed 17 days ago
Retailer 5
-
£22,594 GBP
$30,273 USD
View
Price last confirmed 37 days ago
Retailer 6
-
£22,774 GBP
$30,515 USD
View
Price last confirmed 17 days ago
Retailer 7
-
£23,188 GBP
$31,069 USD
View
Price last confirmed 17 days ago
Retailer 8
-
£23,497 GBP
$31,483 USD
View
Price last confirmed 39 days ago
B+
Retailer 9
-
£24,096 GBP
View
Retailer 10
-
£24,401 GBP
$32,694 USD
View
Price last confirmed 41 days ago
Most Expensive
Cape Diamonds
cert_6562074899 · Sep 25
£29,365 GBP
ZAR 635,641 ZAR
View
Price last confirmed 37 days ago
10 more retailers have this diamond
Prices start from £24,096 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.

B+
2.51ct Round
£24,096 GBP