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Marquise|Natural|IGI

1.01ct H SI1 Marquise Natural Diamond

EX • H/SI1 • IGI 782658815

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 782658815

Diamond specifications and retailer prices

From £1,637 GBP
As of November 2, 2026
Save £1,872 GBP (53%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £3,509 GBP at NZ Jewellers · As of November 3, 2026
View at NZ Jewellers

About this 1.01ct natural marquise diamond

This 1.01ct natural marquise sits in the classic one-carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI 782658815. Listed at 7 retailers as of November 2, 2026, with prices from £1,637 to £3,509, a £1,872 spread on the same certified stone. NZ Jewellers lists it at £3,509. 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

1.01
Carat
H
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.1°
Pavilion angle39.9°
OriginNatural
Grading LabIGI
CertificateIGI 782658815
Dimensions9.90 × 5.27 × 3.29 mm
L/W Ratio1.88
Girdle conditionFaceted
Top View
9.90 mm5.27 mm1.01 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 782658815
Side View
Table 60.0%Crown 38.1°Girdle: MED-STKPavilion 39.9°Culet: NoneDepth 62.4%

Caratlytics Score

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

Price History

Last verified: Nov 2
Current: £3,509 GBP|Low: £1,637 GBP|High: £3,640 GBP|Avg: £2,143 GBP|-3.6%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 2, 2026
Retailer 2£1,637 GBP
Retailer 8£1,677 GBP
Retailer 5£1,679 GBP
Retailer 3£1,711 GBP
Retailer 7£1,711 GBP
Retailer 4£1,756 GBP
Retailer 6£2,956 GBP
NZ Jewellers£3,509 GBP

32 data points across 8 retailers

7 retailers£1,637 GBP to £3,509 GBP

A
Cheapest Retailer
-
£1,637 GBP
A
Retailer 2
-
£1,679 GBP
View
A
Retailer 3
-
£1,711 GBP
View
A
Retailer 4
-
£1,711 GBP
View
A
Retailer 5
-
£1,756 GBP
View
Retailer 6
-
£2,956 GBP
View
Price last confirmed 8 days ago
Most Expensive
B
NZ Jewellers
d1594fbc-7866-46d3-b5e3-e1b454dfebd6 · Nov 3
£3,509 GBP
$4,697 USD
View
6 more retailers have this diamond
Prices start from £1,637 GBPSave up to £1,872 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
1.01ct Marquise
£1,637 GBP