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Marquise|Natural|IGI

1.51ct G SI2 Marquise Natural Diamond

EX • G/SI2 • IGI 824604627

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 824604627

Diamond specifications and retailer prices

From £2,949 GBP
As of November 5, 2026
Save £2,221 GBP (43%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £5,170 GBP at Wholesale Diamonds Direct · As of November 6, 2026
View at Wholesale Diamonds Direct

About this 1.51ct natural marquise diamond

This 1.51ct natural marquise sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI 824604627. Listed at 5 retailers as of November 5, 2026, with prices from £2,949 to £5,170, a £2,221 spread on the same certified stone. Wholesale Diamonds Direct lists it at £5,170. 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

1.51
Carat
G
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.6°
Pavilion angle39.5°
OriginNatural
Grading LabIGI
CertificateIGI 824604627
Dimensions11.36 × 6.01 × 3.71 mm
L/W Ratio1.89
Girdle conditionFaceted
Top View
11.36 mm6.01 mm1.51 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 824604627
Side View
Table 57.0%Crown 36.6°Girdle: MED-STKPavilion 39.5°Culet: NoneDepth 61.7%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 5
Current: £3,626 GBP|Low: £2,932 GBP|High: £5,830 GBP|Avg: £3,970 GBP|-10.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Wholesale Diamonds Direct
November 6, 2026
Retailer 2£2,949 GBP
Retailer 4£3,071 GBP
Retailer 3£3,591 GBP
Retailer 1£3,626 GBP
Wholesale Diamonds Direct£5,170 GBP

34 data points across 5 retailers

5 retailers£2,949 GBP to £5,170 GBP

A
Cheapest Retailer
-
£2,949 GBP
A
Retailer 2
-
£3,071 GBP
View
A
Retailer 3
-
£3,591 GBP
View
A
Retailer 4
-
£3,626 GBP
View
Most Expensive
A
Wholesale Diamonds Direct
378329426 · Nov 6
£5,170 GBP
$6,920 USD
View
4 more retailers have this diamond
Prices start from £2,949 GBPSave up to £2,221 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
1.51ct Marquise
£2,949 GBP