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Marquise|Lab Grown|IGI

3.29ct G VS1 Marquise Lab Grown Diamond

EX • G/VS1 • IGI LG848620320

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG848620320

Diamond specifications and retailer prices

From £302 GBP
$405 USD
As of November 1, 2026
Save £1,996 GBP (87%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £2,299 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 3.29ct lab-grown marquise diamond

This 3.29ct lab-grown marquise sits in the three to five carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG848620320 or 848620320. Listed at 4 retailers as of October 31, 2026, with prices from £302 to £2,299, a £1,996 spread on the same certified stone. Brilliant Earth lists it at £2,299. 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

3.29
Carat
G
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG848620320
Dimensions15.56 × 7.93 × 4.79 mm
L/W Ratio1.96
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
15.56 mm7.93 mm3.29 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG848620320
Side View
Table 62.0%Crown 35.1°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 60.4%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: £2,299 GBP|Low: £302 GBP|High: £2,299 GBP|Avg: £1,261 GBP
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
November 2, 2026
Retailer 3£302 GBP
Retailer 2£624 GBP
Retailer 4£1,799 GBP
Brilliant Earth£2,299 GBP

7 data points across 4 retailers

4 retailers£302 GBP to £2,299 GBP

A
Cheapest Retailer
-
£302 GBP
$405 USD
Final sale: no returns
A
Retailer 2
-
£624 GBP
View
B
Retailer 3
-
£1,799 GBP
$2,410 USD
View
Most Expensive
B
Brilliant Earth
22380306A · Oct 31
£2,299 GBP
$3,080 USD
View
3 more retailers have this diamond
Prices start from £302 GBPSave up to £1,996 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
3.29ct Marquise
£302 GBP