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1.25ct M SI2 Round Natural Diamond

EX • M/SI2 • GIA 1226850485

Certificate GIA 1226850485

Diamond specifications and retailer prices

From £1,404 GBP
As of November 6, 2026
Save £604 GBP (30%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £2,007 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 1226850485. Listed at 2 retailers as of November 5, 2026, with prices from £1,404 to £2,007, a £604 spread on the same certified stone. Yorxs lists it at £2,007. 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
SymmetryVery Good
FluorescenceFaint
Crown angle34.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 1226850485
Dimensions6.92 × 6.87 × 4.27 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Top View
6.92 mm6.87 mm1.25 ctM / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1226850485
Side View
Table 58.0%Crown 34.5°Girdle: ThickPavilion 41.2°Culet: NoneDepth 62.0%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 6
Current: £1,404 GBP|Low: £1,372 GBP|High: £2,161 GBP|Avg: £1,852 GBP|-7.7%
Retailer 1
Retailer 2
Retailer 3
Yorxs
November 5, 2026
Retailer 1£1,404 GBP
Retailer 2£1,792 GBP
Yorxs£2,007 GBP
Retailer 3£2,161 GBP

25 data points across 4 retailers

2 retailers£1,404 GBP to £2,007 GBP

B+
Cheapest Retailer
-
£1,404 GBP
Most Expensive
B
Yorxs
18213 · Nov 5
£2,007 GBP
€2,573 EUR
View
1 more retailer has this diamond
Prices start from £1,404 GBPSave up to £604 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
£1,404 GBP