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1.37ct M SI1 Round Natural Diamond

EX • M/SI1 • HRD 240000195339

Shape and cutting style on the report: Brilliant

Certificate HRD 240000195339

Diamond specifications and retailer prices

From £1,094 GBP
As of November 5, 2026
Save £1,574 GBP (59%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £2,668 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.37ct natural round diamond

This 1.37ct 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 HRD 240000195339. Listed at 6 retailers as of November 5, 2026, with prices from £1,094 to £2,668, a £1,574 spread on the same certified stone. NZ Jewellers lists it at £2,668. 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

1.37
Carat
M
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.2°
Pavilion angle40.8°
OriginNatural
Grading LabHRD
CertificateHRD 240000195339
Dimensions7.02 × 7.06 × 4.42 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
7.02 mm7.06 mm1.37 ctM / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateHRD 240000195339
Side View
Table 58.0%Crown 36.2°Girdle: MediumPavilion 40.8°Culet: NoneDepth 63.0%

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: £2,668 GBP|Low: £1,094 GBP|High: £2,668 GBP|Avg: £1,438 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 4, 2026
Retailer 3£1,094 GBP
Retailer 5£1,094 GBP
Retailer 6£1,144 GBP
Retailer 4£1,262 GBP
Retailer 2£1,518 GBP
NZ Jewellers£2,668 GBP

25 data points across 6 retailers

6 retailers£1,094 GBP to £2,668 GBP

A
Cheapest Retailer
-
£1,094 GBP
Retailer 2
-
£1,094 GBP
View
Price last confirmed 8 days ago
A
Retailer 3
-
£1,144 GBP
View
B+
Retailer 4
-
£1,262 GBP
View
B+
Retailer 5
-
£1,518 GBP
View
Most Expensive
C
NZ Jewellers
048884f6-4be2-4879-a001-88623786eff5 · Nov 5
£2,668 GBP
$3,591 USD
View
5 more retailers have this diamond
Prices start from £1,094 GBPSave up to £1,574 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
1.37ct Round
£1,094 GBP