Marquise|Lab Grown|IGI

3.59ct E SI2 Marquise Lab Grown Diamond

EX • E/SI2 • IGI LG739585167

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG739585167

Diamond specifications and retailer prices

From £722 GBP
$967 USD
As of October 30, 2026
Save £670 GBP (48%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £2,660 GBP at MOH London · As of October 15, 2026
View at MOH London

About this 3.59ct lab-grown marquise diamond

This 3.59ct lab-grown marquise sits in the three to five carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG739585167 or 739585167. Listed at 14 retailers as of October 30, 2026, with a 93% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

3.59
Carat
E
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle39°
OriginLab Grown
Grading LabIGI
CertificateIGI LG739585167
Dimensions15.74 × 8.02 × 4.97 mm
L/W Ratio1.96
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
15.74 mm8.02 mm3.59 ctE / SI2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG739585167
Side View
Table 57.0%Crown 35.1°Girdle: STK-THKPavilion 39°Culet: NoneDepth 62.0%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: £2,660 GBP|Low: £526 GBP|High: £45,549 GBP|Avg: £4,787 GBP|-0.1%
MOH London
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
Retailer 15
October 26, 2026
Retailer 11£549 GBP
Retailer 15£596 GBP
Retailer 3£636 GBP
Retailer 12£636 GBP
Retailer 4£722 GBP
Retailer 6£796 GBP
Retailer 14£872 GBP
Retailer 9£1,012 GBP
Retailer 10£1,094 GBP
Retailer 2£1,391 GBP
Retailer 8£1,567 GBP
Retailer 5£1,650 GBP
Retailer 13£1,974 GBP
MOH London£2,660 GBP
Retailer 7£45,549 GBP

31 data points across 15 retailers

14 retailers£722 GBP to £1,391 GBP

Retailer 1
-
£549 GBP
$735 USD
Price last confirmed 22 days ago
Retailer 2
-
£596 GBP
$799 USD
View
Price last confirmed 15 days ago
Retailer 3
-
£636 GBP
$852 USD
View
Price last confirmed 18 days ago
Retailer 4
-
£636 GBP
$852 USD
View
Price last confirmed 27 days ago
A
Retailer 5
-
£722 GBP
$967 USD
View
Retailer 6
-
£796 GBP
$1,067 USD
View
Price last confirmed 13 days ago
Retailer 7
-
£872 GBP
$1,168 USD
View
Price last confirmed 14 days ago
Retailer 8
-
£1,012 GBP
View
Price last confirmed 15 days ago
Retailer 9
-
£1,094 GBP
View
Price last confirmed 15 days ago
B+
Retailer 10
-
£1,391 GBP
A$2,868 AUD
View
Retailer 11
-
£1,567 GBP
$2,099 USD
View
Price last confirmed 14 days ago
Retailer 12
-
£1,650 GBP
$2,211 USD
View
Price last confirmed 7 days ago
Retailer 13
-
£1,974 GBP
$2,645 USD
View
Price last confirmed 14 days ago
Most Expensive
MOH London
LG739585167 · Oct 15
£2,660 GBP
View
Price last confirmed 16 days ago
13 more retailers have this diamond
Prices start from £722 GBPSave up to £670 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
3.59ct Marquise
£722 GBP