Marquise|Lab Grown|IGI

3.92ct G VVS2 Marquise Lab Grown Diamond

EX • G/VVS2 • IGI LG841608551

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG841608551

Diamond specifications and retailer prices

From £399 GBP
$534 USD
As of October 31, 2026
Save £358 GBP (47%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £2,310 GBP at Rare Carat · As of October 7, 2026
View at Rare Carat

About this 3.92ct lab-grown marquise diamond

This 3.92ct lab-grown marquise sits in the three to five carat band, graded G colour (near-colourless) and VVS2 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG841608551 or 841608551. Listed at 3 retailers as of October 31, 2026, with a 90% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

3.92
Carat
G
Colour
VVS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG841608551
Dimensions16.76 × 8.26 × 5.00 mm
L/W Ratio2.03
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
16.76 mm8.26 mm3.92 ctG / VVS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG841608551
Side View
Table 62.0%Crown 34.3°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 60.5%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 31
Current: £2,310 GBP|Low: £394 GBP|High: £2,310 GBP|Avg: £1,338 GBP
Rare Carat
Retailer 2
Retailer 3
November 1, 2026
Retailer 3£399 GBP
Retailer 2£756 GBP
Rare Carat£2,310 GBP

29 data points across 3 retailers

3 retailers£399 GBP to £756 GBP

A
Cheapest Retailer
-
£399 GBP
$534 USD
Final sale: no returns
A
Retailer 2
-
£756 GBP
View
Most Expensive
Rare Carat
841608551 · Oct 7
£2,310 GBP
$3,095 USD
View
Price last confirmed 24 days ago
2 more retailers have this diamond
Prices start from £399 GBPSave up to £358 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
3.92ct Marquise
£399 GBP