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Marquise|Natural|IGI

1.31ct H SI2 Marquise Natural Diamond

VG • H/SI2 • IGI 632436360

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 632436360

Diamond specifications and retailer prices

From £2,558 GBP
$3,427 USD
As of November 1, 2026
Save £2,508 GBP (50%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £5,065 GBP at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.31ct natural marquise diamond

This 1.31ct natural marquise sits in the one-and-a-quarter to one-and-a-half carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI 632436360. Listed at 11 retailers as of October 30, 2026, with prices from £2,558 to £5,065, a £2,508 spread on the same certified stone. NZ Jewellers lists it at £5,065. 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

1.31
Carat
H
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle39.6°
Pavilion angle39.1°
OriginNatural
Grading LabIGI
CertificateIGI 632436360
Dimensions10.45 × 5.50 × 3.63 mm
L/W Ratio1.90
Girdle conditionFaceted
Culet sizePointed
Top View
10.45 mm5.50 mm1.31 ctH / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 632436360
Side View
Table 58.0%Crown 39.6°Girdle: STK-THKPavilion 39.1°Culet: NoneDepth 66.0%

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 1
Current: £5,065 GBP|Low: £2,460 GBP|High: £5,145 GBP|Avg: £3,309 GBP|-1.6%
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 2, 2026
Retailer 3£2,558 GBP
Retailer 9£2,612 GBP
Retailer 4£2,663 GBP
Retailer 12£2,683 GBP
Retailer 2£2,874 GBP
Retailer 11£2,907 GBP
Retailer 13£2,907 GBP
Retailer 10£3,019 GBP
Retailer 7£3,289 GBP
Retailer 14£3,355 GBP
Retailer 5£3,514 GBP
Retailer 6£3,558 GBP
Retailer 8£4,862 GBP
NZ Jewellers£5,065 GBP

42 data points across 14 retailers

11 retailers£2,558 GBP to £5,065 GBP

A
Cheapest Retailer
-
£2,558 GBP
$3,427 USD
A
Retailer 2
-
£2,612 GBP
$3,500 USD
View
B+
Retailer 3
-
£2,683 GBP
$3,595 USD
View
Final sale: no returns
A
Retailer 4
-
£2,874 GBP
View
A
Retailer 5
-
£2,907 GBP
$3,895 USD
View
B+
Retailer 6
-
£2,907 GBP
$3,895 USD
View
B+
Retailer 7
-
£3,019 GBP
$4,045 USD
View
B+
Retailer 8
-
£3,289 GBP
€4,197 EUR
View
B+
Retailer 9
-
£3,355 GBP
$4,495 USD
View
B
Retailer 10
-
£4,862 GBP
View
Most Expensive
B
NZ Jewellers
3a4e34eb-f84a-4286-b803-780b4da125f4 · Oct 30
£5,065 GBP
$6,787 USD
View
10 more retailers have this diamond
Prices start from £2,558 GBPSave up to £2,508 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
1.31ct Marquise
£2,558 GBP