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Marquise|Lab Grown|IGI

5.02ct E SI1 Marquise Lab Grown Diamond

ID • E/SI1 • IGI LG635490019

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG635490019

Diamond specifications and retailer prices

From £487 GBP
$652 USD
As of October 30, 2026
Save £1,100 GBP (69%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £1,587 GBP at NZ Jewellers · As of November 1, 2026
View at NZ Jewellers

About this 5.02ct lab-grown marquise diamond

This 5.02ct lab-grown marquise sits in the over five carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG635490019 or 635490019. Listed at 12 retailers as of October 30, 2026, with prices from £487 to £1,587, a £1,100 spread on the same certified stone. NZ Jewellers lists it at £1,587. 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

5.02
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG635490019
Dimensions17.50 × 8.85 × 5.73 mm
L/W Ratio1.98
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
17.50 mm8.85 mm5.02 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG635490019
Side View
Table 58.0%Crown 38°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 64.7%

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 30
Current: £1,587 GBP|Low: £487 GBP|High: £6,135 GBP|Avg: £1,738 GBP
NZ Jewellers
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
Retailer 16
October 31, 2026
Retailer 10£487 GBP
Retailer 4£529 GBP
Retailer 12£564 GBP
Retailer 9£633 GBP
Retailer 15£669 GBP
Retailer 13£698 GBP
Retailer 14£860 GBP
Retailer 11£902 GBP
Retailer 3£920 GBP
Retailer 6£1,014 GBP
Retailer 2£1,441 GBP
Retailer 16£1,508 GBP
NZ Jewellers£1,587 GBP
Retailer 5£2,944 GBP
Retailer 8£4,739 GBP
Retailer 7£6,135 GBP

4 data points across 16 retailers

12 retailers£487 GBP to £1,587 GBP

A
Cheapest Retailer
-
£487 GBP
$652 USD
A
Retailer 2
-
£529 GBP
$709 USD
View
A
Retailer 3
-
£564 GBP
$756 USD
View
A
Retailer 4
-
£633 GBP
View
A
Retailer 5
-
£669 GBP
HK$7,000 HKD
View
A
Retailer 6
-
£698 GBP
$935 USD
View
B+
Retailer 7
-
£860 GBP
$1,152 USD
View
B+
Retailer 8
-
£902 GBP
View
B+
Retailer 9
-
£920 GBP
$1,233 USD
View
B
Retailer 10
-
£1,441 GBP
$1,931 USD
View
B
Retailer 11
-
£1,508 GBP
$2,020 USD
View
Most Expensive
B
NZ Jewellers
3b873558-90fa-41a7-83e9-8ea11de6313e · Nov 1
£1,587 GBP
$2,126 USD
View
11 more retailers have this diamond
Prices start from £487 GBPSave up to £1,100 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
5.02ct Marquise
£487 GBP