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2.51ct M SI2 Round Natural Diamond

EX • M/SI2 • GIA 6531398113

Certificate GIA 6531398113

Diamond specifications and retailer prices

From £8,180 GBP
As of November 6, 2026
Save £688 GBP (8%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £8,868 GBP at Yorxs · As of November 5, 2026
View at Yorxs

About this 2.51ct natural round diamond

This 2.51ct natural round sits in the two to three carat band, graded M colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6531398113. Listed at 2 retailers as of November 5, 2026, with a relatively tight 8% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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
M
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 6531398113
Dimensions8.63 × 8.68 × 5.36 mm
L/W Ratio1.01
Top View
8.63 mm8.68 mm2.51 ctM / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 6531398113
Side View
Table 59.0%CrownGirdle: MediumPavilionCulet: NoneDepth 61.9%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 6
Current: £8,180 GBP|Low: £7,249 GBP|High: £8,937 GBP|Avg: £8,092 GBP
Retailer 1
Retailer 2
Yorxs
November 5, 2026
Retailer 2£7,249 GBP
Retailer 1£8,180 GBP
Yorxs£8,868 GBP

21 data points across 3 retailers

2 retailers£8,180 GBP to £8,868 GBP

B
Cheapest Retailer
-
£8,180 GBP
Most Expensive
B
Yorxs
85AD5943A · Nov 5
£8,868 GBP
€11,367 EUR
View
1 more retailer has this diamond
Prices start from £8,180 GBPSave up to £688 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
£8,180 GBP