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1.25ct M SI2 Round Natural Diamond

EX • M/SI2 • GIA 6372509100

Certificate GIA 6372509100

Diamond specifications and retailer prices

From £2,343 GBP
As of November 6, 2026
Save £993 GBP (30%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £3,337 GBP at Yorxs · As of November 5, 2026
View at Yorxs

About this 1.25ct natural round diamond

This 1.25ct natural round sits in the one-and-a-quarter to one-and-a-half carat band, graded M colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6372509100. Listed at 2 retailers as of November 5, 2026, with prices from £2,343 to £3,337, a £993 spread on the same certified stone. Yorxs lists it at £3,337. 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

1.25
Carat
M
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6372509100
Dimensions6.93 × 6.95 × 4.20 mm
L/W Ratio1.00
Top View
6.93 mm6.95 mm1.25 ctM / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6372509100
Side View
Table 61.0%CrownGirdlePavilionCuletDepth 60.5%

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: £2,343 GBP|Low: £2,343 GBP|High: £3,354 GBP|Avg: £2,835 GBP
Retailer 1
Yorxs
November 5, 2026
Retailer 1£2,343 GBP
Yorxs£3,337 GBP

9 data points across 2 retailers

2 retailers£2,343 GBP to £3,337 GBP

B
Cheapest Retailer
-
£2,343 GBP
Most Expensive
C
Yorxs
IDI2381 · Nov 5
£3,337 GBP
€4,277 EUR
View
1 more retailer has this diamond
Prices start from £2,343 GBPSave up to £993 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
1.25ct Round
£2,343 GBP