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Marquise|Natural|IGI

1.00ct H SI2 Marquise Natural Diamond

VG • H/SI2 • IGI 743559061

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 743559061

Diamond specifications and retailer prices

From £784 GBP
As of November 6, 2026
Save £1,659 GBP (68%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £2,442 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 H colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI 743559061. Listed at 15 retailers as of November 5, 2026, with prices from £784 to £2,442, a £1,659 spread on the same certified stone. NZ Jewellers lists it at £2,442. 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
H
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Crown angle40.3°
Pavilion angle38.5°
OriginNatural
Grading LabIGI
CertificateIGI 743559061
Dimensions10.92 × 4.87 × 3.13 mm
L/W Ratio2.24
Girdle conditionFaceted
Top View
10.92 mm4.87 mm1.00 ctH / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateIGI 743559061
Side View
Table 60.0%Crown 40.3°Girdle: MED-THKPavilion 38.5°Culet: NoneDepth 64.3%

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 6
Current: £2,442 GBP|Low: £784 GBP|High: £2,442 GBP|Avg: £1,184 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 6, 2026
Retailer 2£784 GBP
Retailer 5£903 GBP
Retailer 8£904 GBP
Retailer 6£924 GBP
Retailer 11£944 GBP
Retailer 7£985 GBP
Retailer 3£1,001 GBP
Retailer 12£1,001 GBP
Retailer 13£1,047 GBP
Retailer 4£1,062 GBP
Retailer 14£1,156 GBP
Retailer 9£1,369 GBP
Retailer 10£1,833 GBP
NZ Jewellers£2,442 GBP

29 data points across 14 retailers

15 retailers£784 GBP to £2,442 GBP

A
Cheapest Retailer
-
£784 GBP
A
Retailer 2
-
£903 GBP
View
A
Retailer 3
-
£904 GBP
View
B+
Retailer 4
-
£924 GBP
View
Final sale: no returns
A
Retailer 5
-
£944 GBP
View
A
Retailer 6
-
£985 GBP
View
A
Retailer 7
-
£1,001 GBP
View
Retailer 8
-
£1,001 GBP
View
Price last confirmed 8 days ago
B+
Retailer 9
-
£1,047 GBP
View
A
Retailer 10
-
£1,062 GBP
View
B+
Retailer 11
-
£1,102 GBP
View
A
Retailer 12
-
£1,156 GBP
View
B+
Retailer 13
-
£1,369 GBP
View
B+
Retailer 14
-
£1,833 GBP
View
Most Expensive
B
NZ Jewellers
63bc1583-f74d-44b3-b941-6e7f44169eb7 · Nov 5
£2,442 GBP
$3,269 USD
View
14 more retailers have this diamond
Prices start from £784 GBPSave up to £1,659 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
1.00ct Marquise
£784 GBP