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Marquise|Natural|IGI

1.50ct I SI1 Marquise Natural Diamond

VG • I/SI1 • IGI 848662938

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 848662938

Diamond specifications and retailer prices

From £3,731 GBP
₹476,837 INR
As of November 2, 2026
Save £2,990 GBP (44%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £6,721 GBP at MOH London · As of November 1, 2026
View at MOH London

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 SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 848662938. Listed at 5 retailers as of November 1, 2026, with prices from £3,731 to £6,721, a £2,990 spread on the same certified stone. MOH London lists it at £6,721. 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

1.50
Carat
I
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.4°
Pavilion angle39.1°
OriginNatural
Grading LabIGI
CertificateIGI 848662938
Dimensions11.26 × 6.07 × 3.71 mm
L/W Ratio1.86
Girdle conditionFaceted
Top View
11.26 mm6.07 mm1.50 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 848662938
Side View
Table 57.0%Crown 31.4°Girdle: STK-THKPavilion 39.1°Culet: NoneDepth 61.1%

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 2
Current: £6,721 GBP|Low: £3,731 GBP|High: £6,757 GBP|Avg: £4,762 GBP|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 2, 2026
Retailer 2£3,731 GBP
Retailer 5£4,257 GBP
Retailer 4£4,427 GBP
Retailer 3£4,983 GBP
MOH London£6,721 GBP

7 data points across 5 retailers

5 retailers£3,731 GBP to £6,721 GBP

A
Cheapest Retailer
-
£3,731 GBP
₹476,837 INR
B+
Retailer 2
-
£4,257 GBP
$5,713 USD
View
B+
Retailer 3
-
£4,427 GBP
View
B+
Retailer 4
-
£4,983 GBP
€6,369 EUR
View
Most Expensive
B
MOH London
FBEB55F2C · Nov 1
£6,721 GBP
View
4 more retailers have this diamond
Prices start from £3,731 GBPSave up to £2,990 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
£3,731 GBP