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0.81ct M SI1 Round Natural Diamond

EX • M/SI1 • GIA 6562007121

Certificate GIA 6562007121

Diamond specifications and retailer prices

From £248 GBP
As of November 5, 2026
Save £239 GBP (49%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £488 GBP at Yorxs · As of November 5, 2026
View at Yorxs

About this 0.81ct natural round diamond

This 0.81ct natural round sits in the just-under-one-carat band, graded M colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6562007121. Listed at 3 retailers as of November 5, 2026, with prices from £248 to £488, a £239 spread on the same certified stone. Yorxs lists it at £488. 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

0.81
Carat
M
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle35.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6562007121
Dimensions5.91 × 5.95 × 3.72 mm
L/W Ratio1.01
Girdle conditionMedium to Slightly Thick
Key to symbols
Cloud
Top View
5.91 mm5.95 mm0.81 ctM / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6562007121
Side View
Table 56.0%Crown 35.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.8%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 5
Current: £248 GBP|Low: £248 GBP|High: £578 GBP|Avg: £363 GBP|-14.1%
Retailer 1
Retailer 2
Yorxs
November 5, 2026
Retailer 1£248 GBP
Retailer 2£285 GBP
Yorxs£488 GBP

42 data points across 3 retailers

3 retailers£248 GBP to £488 GBP

A
Cheapest Retailer
-
£248 GBP
A
Retailer 2
-
£285 GBP
View
Most Expensive
B+
Yorxs
B150011804 · Nov 5
£488 GBP
€625 EUR
View
2 more retailers have this diamond
Prices start from £248 GBPSave up to £239 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
0.81ct Round
£248 GBP