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Round|Natural|GIA

2.51ct G SI2 Round Natural Diamond

EX • G/SI2 • GIA 1533625669

Certificate GIA 1533625669

Diamond specifications and retailer prices

From £15,757 GBP
$21,112 USD
As of October 30, 2026
Save £10,890 GBP (41%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £26,647 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 GIA 1533625669. Listed at 9 retailers as of October 29, 2026, with prices from £15,757 to £26,647, a £10,890 spread on the same certified stone. MOH London lists it at £26,647. 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
FluorescenceMedium
Crown angle35°
OriginNatural
Grading LabGIA
CertificateGIA 1533625669
Dimensions8.66 × 8.71 × 5.39 mm
L/W Ratio1.01
Culet sizeNone
Top View
8.66 mm8.71 mm2.51 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 1533625669
Side View
Table 57.0%Crown 35°Girdle: MediumPavilionCulet: NoneDepth 62.0%

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: £26,647 GBP|Low: £16,971 GBP|High: £26,824 GBP|Avg: £20,084 GBP|+0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 31, 2026
Retailer 8£16,971 GBP
Retailer 2£17,283 GBP
Retailer 4£17,819 GBP
Retailer 6£18,385 GBP
Retailer 7£19,093 GBP
Retailer 3£20,127 GBP
Retailer 5£24,042 GBP
MOH London£26,647 GBP

43 data points across 8 retailers

9 retailers£15,757 GBP to £26,647 GBP

A
Cheapest Retailer
-
£15,757 GBP
$21,112 USD
A
Retailer 2
-
£16,121 GBP
CA$30,001 CAD
View
A
Retailer 3
-
£17,283 GBP
View
B+
Retailer 4
-
£17,819 GBP
$23,876 USD
View
B+
Retailer 5
-
£18,385 GBP
$24,634 USD
View
B+
Retailer 6
-
£19,093 GBP
$25,582 USD
View
B+
Retailer 7
-
£20,127 GBP
€25,684 EUR
View
B
Retailer 8
-
£24,042 GBP
$32,214 USD
View
Most Expensive
B
MOH London
2905A8E5C · Oct 29
£26,647 GBP
View
8 more retailers have this diamond
Prices start from £15,757 GBPSave up to £10,890 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
£15,757 GBP