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1.30ct M SI2 Round Natural Diamond

EX • M/SI2 • HRD 240000278708

Shape and cutting style on the report: Brilliant

Certificate HRD 240000278708

Diamond specifications and retailer prices

From £816 GBP
As of November 5, 2026
Save £1,174 GBP (59%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £1,990 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.3ct natural round diamond

This 1.3ct 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 HRD 240000278708. Listed at 6 retailers as of November 5, 2026, with prices from £816 to £1,990, a £1,174 spread on the same certified stone. NZ Jewellers lists it at £1,990. 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

1.30
Carat
M
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle36°
Pavilion angle40.8°
OriginNatural
Grading LabHRD
CertificateHRD 240000278708
Dimensions6.92 × 6.95 × 4.33 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Top View
6.92 mm6.95 mm1.30 ctM / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateHRD 240000278708
Side View
Table 58.0%Crown 36°Girdle: MediumPavilion 40.8°Culet: NoneDepth 62.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: £1,990 GBP|Low: £816 GBP|High: £1,990 GBP|Avg: £1,041 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 5, 2026
Retailer 3£816 GBP
Retailer 5£816 GBP
Retailer 6£847 GBP
Retailer 7£854 GBP
Retailer 4£941 GBP
Retailer 2£1,134 GBP
NZ Jewellers£1,990 GBP

25 data points across 7 retailers

6 retailers£816 GBP to £1,990 GBP

A
Cheapest Retailer
-
£816 GBP
Retailer 2
-
£816 GBP
View
Price last confirmed 8 days ago
A
Retailer 3
-
£847 GBP
View
B+
Retailer 4
-
£941 GBP
View
A
Retailer 5
-
£1,134 GBP
View
Most Expensive
B
NZ Jewellers
567d9b5d-a665-4ad1-b9f0-89655ce39a8f · Nov 5
£1,990 GBP
$2,678 USD
View
5 more retailers have this diamond
Prices start from £816 GBPSave up to £1,174 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
1.30ct Round
£816 GBP