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Marquise|Lab Grown|IGI

4.02ct E SI1 Marquise Lab Grown Diamond

GD • E/SI1 • IGI LG841640064

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG841640064

Diamond specifications and retailer prices

From £554 GBP
HK$5,800 HKD
As of October 31, 2026
Save £1,722 GBP (76%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £2,276 GBP at Rare Carat · As of October 28, 2026
View at Rare Carat

About this 4.02ct lab-grown marquise diamond

This 4.02ct lab-grown marquise sits in the three to five carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by IGI LG841640064 or 841640064. Listed at 8 retailers as of October 28, 2026, with prices from £554 to £2,276, a £1,722 spread on the same certified stone. Rare Carat lists it at £2,276. 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

4.02
Carat
E
Colour
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG841640064
Dimensions16.15 × 8.33 × 5.17 mm
L/W Ratio1.94
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
16.15 mm8.33 mm4.02 ctE / SI1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG841640064
Side View
Table 60.0%Crown 34.9°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 62.1%

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: Oct 31
Current: £2,276 GBP|Low: £554 GBP|High: £2,302 GBP|Avg: £1,153 GBP|-1.1%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 4£554 GBP
Retailer 8£743 GBP
Retailer 3£765 GBP
Retailer 7£771 GBP
Retailer 2£776 GBP
Retailer 6£1,045 GBP
Retailer 5£2,092 GBP
Rare Carat£2,276 GBP

17 data points across 8 retailers

8 retailers£554 GBP to £2,276 GBP

A
Cheapest Retailer
-
£554 GBP
HK$5,800 HKD
B+
Retailer 2
-
£743 GBP
$996 USD
View
A
Retailer 3
-
£765 GBP
€976 EUR
View
B
Retailer 4
-
£771 GBP
$1,033 USD
View
B+
Retailer 5
-
£776 GBP
View
B
Retailer 6
-
£1,045 GBP
$1,400 USD
View
C
Retailer 7
-
£2,092 GBP
View
Most Expensive
C
Rare Carat
KI0646400KF841 · Oct 28
£2,276 GBP
$3,050 USD
View
7 more retailers have this diamond
Prices start from £554 GBPSave up to £1,722 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
4.02ct Marquise
£554 GBP