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Marquise|Lab Grown|IGI

4.66ct E VS1 Marquise Lab Grown Diamond

EX • E/VS1 • IGI LG848616838

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG848616838

Diamond specifications and retailer prices

From £597 GBP
$800 USD
As of November 1, 2026
Save £3,474 GBP (85%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £4,071 GBP at Rare Carat · As of November 1, 2026
View at Rare Carat

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 LG848616838 or 848616838. Listed at 3 retailers as of November 1, 2026, with prices from £597 to £4,071, a £3,474 spread on the same certified stone. Rare Carat lists it at £4,071. 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 angle35.4°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG848616838
Dimensions18.18 × 8.68 × 5.30 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
18.18 mm8.68 mm4.66 ctE / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG848616838
Side View
Table 62.0%Crown 35.4°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 61.1%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: £4,071 GBP|Low: £597 GBP|High: £4,075 GBP|Avg: £1,833 GBP|-0.1%
Rare Carat
Retailer 2
Retailer 3
November 2, 2026
Retailer 3£597 GBP
Retailer 2£1,024 GBP
Rare Carat£4,071 GBP

9 data points across 3 retailers

3 retailers£597 GBP to £4,071 GBP

A
Cheapest Retailer
-
£597 GBP
$800 USD
Final sale: no returns
A
Retailer 2
-
£1,024 GBP
View
Most Expensive
B
Rare Carat
848616838 · Nov 1
£4,071 GBP
$5,455 USD
View
2 more retailers have this diamond
Prices start from £597 GBPSave up to £3,474 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
£597 GBP