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Radiant|Natural|GIA

2.51ct F SI2 Radiant Natural Diamond

ID • F/SI2 • GIA 6532765109

Certificate GIA 6532765109

Diamond specifications and retailer prices

From £11,603 GBP
As of November 2, 2026
Save £4,828 GBP (29%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £16,431 GBP at MOH London · As of November 1, 2026
View at MOH London

About this 2.51ct natural radiant diamond

This 2.51ct natural radiant sits in the two to three carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6532765109. Listed at 6 retailers as of November 1, 2026, with prices from £11,603 to £16,431, a £4,828 spread on the same certified stone. MOH London lists it at £16,431. 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
F
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.31°
Pavilion angle30.07°
OriginNatural
Grading LabGIA
CertificateGIA 6532765109
Dimensions8.73 × 6.63 × 4.61 mm
L/W Ratio1.32
Top View
8.73 mm6.63 mm2.51 ctF / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6532765109
Side View
Table 64.0%Crown 44.31°Girdle: MED-STKPavilion 30.07°Culet: NoneDepth 69.5%

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: Nov 2
Current: £16,431 GBP|Low: £11,603 GBP|High: £16,997 GBP|Avg: £13,258 GBP|-2.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 2£11,603 GBP
Retailer 10£12,301 GBP
Retailer 5£12,350 GBP
Retailer 3£12,387 GBP
Retailer 7£12,433 GBP
Retailer 8£12,482 GBP
Retailer 6£12,580 GBP
Retailer 9£13,334 GBP
Retailer 4£14,905 GBP
MOH London£16,431 GBP

30 data points across 10 retailers

6 retailers£11,603 GBP to £16,431 GBP

A
Cheapest Retailer
-
£11,603 GBP
A
Retailer 2
-
£12,350 GBP
$16,573 USD
View
A
Retailer 3
-
£12,387 GBP
$16,623 USD
View
A
Retailer 4
-
£12,580 GBP
$16,882 USD
View
A
Retailer 5
-
£14,905 GBP
$20,001 USD
View
Most Expensive
A
MOH London
3317AC683 · Nov 1
£16,431 GBP
View
5 more retailers have this diamond
Prices start from £11,603 GBPSave up to £4,828 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 Radiant
£11,603 GBP