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Marquise|Lab Grown|IGI

5.09ct E VVS1 Marquise Lab Grown Diamond

ID • E/VVS1 • IGI LG850603905

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG850603905

Diamond specifications and retailer prices

From £1,462 GBP
HK$15,300 HKD
As of October 30, 2026
Save £3,154 GBP (68%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £4,615 GBP at With Clarity · As of October 31, 2026
View at With Clarity

About this 5.09ct lab-grown marquise diamond

This 5.09ct lab-grown marquise sits in the over five carat band, graded E colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG850603905 or 850603905. Listed at 7 retailers as of October 30, 2026, with prices from £1,462 to £4,615, a £3,154 spread on the same certified stone. With Clarity lists it at £4,615. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

5.09
Carat
E
Colour
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.9°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG850603905
Dimensions18.30 × 8.75 × 5.58 mm
L/W Ratio2.09
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
18.30 mm8.75 mm5.09 ctE / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG850603905
Side View
Table 61.0%Crown 33.9°Girdle: STK-THKPavilion 41.1°Culet: NoneDepth 63.8%

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: £1,790 GBP|Low: £1,462 GBP|High: £4,615 GBP|Avg: £2,975 GBP|+0.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
With Clarity
October 31, 2026
Retailer 6£1,462 GBP
Retailer 2£1,489 GBP
Retailer 1£1,790 GBP
Retailer 4£2,744 GBP
Retailer 5£3,640 GBP
Retailer 3£4,463 GBP
With Clarity£4,615 GBP

4 data points across 7 retailers

7 retailers£1,462 GBP to £4,615 GBP

A
Cheapest Retailer
-
£1,462 GBP
HK$15,300 HKD
A
Retailer 2
-
£1,489 GBP
$1,995 USD
View
A
Retailer 3
-
£1,790 GBP
View
B+
Retailer 4
-
£2,744 GBP
$3,676 USD
View
B
Retailer 5
-
£3,640 GBP
View
B
Retailer 6
-
£4,463 GBP
$5,980 USD
View
Most Expensive
B
With Clarity
850603905 · Oct 31
£4,615 GBP
$6,184 USD
View
6 more retailers have this diamond
Prices start from £1,462 GBPSave up to £3,154 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
5.09ct Marquise
£1,462 GBP