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Marquise|Natural|IGI

1.00ct M SI2 Marquise Natural Diamond

VG • M/SI2 • IGI 808619910

Shape and cutting style on the report: Marquise modified brilliant

Certificate IGI 808619910

Diamond specifications and retailer prices

From £671 GBP
As of November 5, 2026
Save £1,432 GBP (68%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £2,103 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1ct natural marquise diamond

This 1ct natural marquise sits in the classic one-carat band, graded M colour (faint-tinted) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI 808619910. Listed at 10 retailers as of November 5, 2026, with prices from £671 to £2,103, a £1,432 spread on the same certified stone. NZ Jewellers lists it at £2,103. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.00
Carat
M
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle35.5°
Pavilion angle30.5°
OriginNatural
Grading LabIGI
CertificateIGI 808619910
Dimensions9.27 × 4.86 × 3.26 mm
L/W Ratio1.91
Girdle conditionFaceted
Cert comments
Faint Brown
Top View
9.27 mm4.86 mm1.00 ctM / SI2
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI 808619910
Side View
Table 59.0%Crown 35.5°Girdle: THK-VTKPavilion 30.5°Culet: NoneDepth 67.1%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: £2,103 GBP|Low: £671 GBP|High: £2,103 GBP|Avg: £875 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 7£671 GBP
Retailer 9£671 GBP
Retailer 8£678 GBP
Retailer 4£696 GBP
Retailer 2£704 GBP
Retailer 10£749 GBP
Retailer 5£769 GBP
Retailer 6£774 GBP
Retailer 3£865 GBP
NZ Jewellers£2,103 GBP

23 data points across 10 retailers

10 retailers£671 GBP to £2,103 GBP

Retailer 1
-
£671 GBP
Price last confirmed 12 days ago
B+
Retailer 2
-
£671 GBP
View
B+
Retailer 3
-
£678 GBP
View
B+
Retailer 4
-
£696 GBP
View
B+
Retailer 5
-
£704 GBP
View
B+
Retailer 6
-
£749 GBP
View
B+
Retailer 7
-
£769 GBP
View
B+
Retailer 8
-
£774 GBP
View
B+
Retailer 9
-
£865 GBP
View
Most Expensive
C
NZ Jewellers
1298f05d-093d-4566-b815-f50f5322a061 · Nov 5
£2,103 GBP
$2,831 USD
View
9 more retailers have this diamond
Prices start from £671 GBPSave up to £1,432 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+
1.00ct Marquise
£671 GBP