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Marquise|Lab Grown|IGI

4.66ct E VS1 Marquise Lab Grown Diamond

EX • E/VS1 • IGI LG845602381

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG845602381

Diamond specifications and retailer prices

From £591 GBP
$792 USD
As of November 1, 2026
Save £7,290 GBP (93%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £7,881 GBP at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

About this 4.66ct lab-grown marquise diamond

This 4.66ct lab-grown marquise sits in the three to five carat band, graded E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG845602381 or 845602381. Listed at 4 retailers as of October 28, 2026, with prices from £591 to £7,881, a £7,290 spread on the same certified stone. Brilliant Earth lists it at £7,881. 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

4.66
Carat
E
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.4°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG845602381
Dimensions17.51 × 8.73 × 5.40 mm
L/W Ratio2.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
17.51 mm8.73 mm4.66 ctE / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG845602381
Side View
Table 62.0%Crown 36.4°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 61.9%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: £1,014 GBP|Low: £591 GBP|High: £4,079 GBP|Avg: £1,947 GBP|-0.7%
Retailer 1
Retailer 2
Retailer 3
November 2, 2026
Retailer 2£591 GBP
Retailer 1£1,014 GBP
Retailer 3£4,071 GBP

16 data points across 3 retailers

4 retailers£591 GBP to £7,881 GBP

A
Cheapest Retailer
-
£591 GBP
$792 USD
Final sale: no returns
A
Retailer 2
-
£1,014 GBP
View
B
Retailer 3
-
£4,071 GBP
$5,455 USD
View
Most Expensive
B
Brilliant Earth
22141356A · Oct 28
£7,881 GBP
$10,560 USD
View
3 more retailers have this diamond
Prices start from £591 GBPSave up to £7,290 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
4.66ct Marquise
£591 GBP