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Marquise|Lab Grown|IGI

3.87ct G VVS2 Marquise Lab Grown Diamond

EX • G/VVS2 • IGI LG818614648

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG818614648

Diamond specifications and retailer prices

From £394 GBP
$528 USD
As of October 31, 2026
Save £2,606 GBP (87%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £3,000 GBP at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 3.87ct lab-grown marquise diamond

This 3.87ct 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 LG818614648 or 818614648. Listed at 4 retailers as of October 30, 2026, with prices from £394 to £3,000, a £2,606 spread on the same certified stone. Brilliant Earth lists it at £3,000. 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

3.87
Carat
G
Colour
VVS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818614648
Dimensions15.57 × 8.24 × 5.22 mm
L/W Ratio1.89
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
15.57 mm8.24 mm3.87 ctG / VVS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818614648
Side View
Table 60.0%Crown 36°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 63.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 31
Current: £3,000 GBP|Low: £389 GBP|High: £3,000 GBP|Avg: £1,578 GBP|+0.2%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
October 31, 2026
Retailer 3£394 GBP
Retailer 2£753 GBP
Retailer 4£2,489 GBP
Brilliant Earth£3,000 GBP

37 data points across 4 retailers

4 retailers£394 GBP to £3,000 GBP

A
Cheapest Retailer
-
£394 GBP
$528 USD
Final sale: no returns
A
Retailer 2
-
£753 GBP
View
B
Retailer 3
-
£2,489 GBP
$3,335 USD
View
Most Expensive
B
Brilliant Earth
21228758A · Oct 30
£3,000 GBP
$4,020 USD
View
3 more retailers have this diamond
Prices start from £394 GBPSave up to £2,606 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
3.87ct Marquise
£394 GBP