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1.36ct M SI1 Round Natural Diamond

EX • M/SI1 • GIA 2558687764

Certificate GIA 2558687764

Diamond specifications and retailer prices

From £1,272 GBP
As of November 5, 2026
Save £306 GBP (19%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £1,578 GBP at GemTrove · As of November 6, 2026
View at GemTrove

About this 1.36ct natural round diamond

This 1.36ct natural round sits in the one-and-a-quarter to one-and-a-half carat band, graded M colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2558687764. Listed at 2 retailers as of November 5, 2026, with prices from £1,272 to £1,578, a £306 spread on the same certified stone. GemTrove lists it at £1,578. 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

1.36
Carat
M
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle35.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 2558687764
Dimensions7.06 × 7.02 × 4.39 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Crystal, Feather, Needle
Top View
7.06 mm7.02 mm1.36 ctM / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2558687764
Side View
Table 57.0%Crown 35.5°Girdle: Slightly ThickPavilion 40.6°Culet: NoneDepth 62.4%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 5
Current: £1,578 GBP|Low: £1,272 GBP|High: £1,578 GBP|Avg: £1,433 GBP
GemTrove
Retailer 2
October 17, 2026
Retailer 2£1,272 GBP
GemTrove£1,578 GBP

2 data points across 2 retailers

2 retailers£1,272 GBP to £1,578 GBP

A
Cheapest Retailer
-
£1,272 GBP
Most Expensive
B+
GemTrove
GT-N-01365062-98 · Nov 6
£1,578 GBP
A$3,268 AUD
View
1 more retailer has this diamond
Prices start from £1,272 GBPSave up to £306 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
1.36ct Round
£1,272 GBP