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Marquise|Natural|IGI

1.50ct I SI2 Marquise Natural Diamond

EX • I/SI2 • IGI 792677713

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 792677713

Diamond specifications and retailer prices

From £1,943 GBP
SGD 3,518 SGD
As of October 31, 2026
Save £2,119 GBP (52%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £4,062 GBP at Wholesale Diamonds Direct · As of October 27, 2026
View at Wholesale Diamonds Direct

About this 1.5ct natural marquise diamond

This 1.5ct natural marquise sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI 792677713. Listed at 7 retailers as of October 27, 2026, with prices from £1,943 to £4,062, a £2,119 spread on the same certified stone. Wholesale Diamonds Direct lists it at £4,062. 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

1.50
Carat
I
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.1°
Pavilion angle42°
OriginNatural
Grading LabIGI
CertificateIGI 792677713
Dimensions11.30 × 5.98 × 3.85 mm
L/W Ratio1.89
Girdle conditionFaceted
Culet sizePointed
Top View
11.30 mm5.98 mm1.50 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 792677713
Side View
Table 59.0%Crown 38.1°Girdle: MED-STKPavilion 42°Culet: NoneDepth 64.4%

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: Oct 31
Current: £2,948 GBP|Low: £1,943 GBP|High: £4,533 GBP|Avg: £2,930 GBP|-10.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Wholesale Diamonds Direct
November 2, 2026
Retailer 4£1,943 GBP
Retailer 8£1,952 GBP
Retailer 3£2,378 GBP
Retailer 2£2,388 GBP
Retailer 5£2,881 GBP
Retailer 1£2,948 GBP
Retailer 7£3,023 GBP
Retailer 6£3,802 GBP
Wholesale Diamonds Direct£4,062 GBP

33 data points across 9 retailers

7 retailers£1,943 GBP to £4,062 GBP

A
Cheapest Retailer
-
£1,943 GBP
SGD 3,518 SGD
A
Retailer 2
-
£2,378 GBP
$3,186 USD
View
A
Retailer 3
-
£2,388 GBP
$3,200 USD
View
A
Retailer 4
-
£2,881 GBP
$3,860 USD
View
A
Retailer 5
-
£2,948 GBP
€3,762 EUR
View
B+
Retailer 6
-
£3,023 GBP
$4,051 USD
View
Most Expensive
A
Wholesale Diamonds Direct
570704316 · Oct 27
£4,062 GBP
$5,443 USD
View
6 more retailers have this diamond
Prices start from £1,943 GBPSave up to £2,119 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
1.50ct Marquise
£1,943 GBP