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Marquise|Lab Grown|IGI

3.80ct F VS2 Marquise Lab Grown Diamond

ID • F/VS2 • IGI LG843664686

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG843664686

Diamond specifications and retailer prices

From £385 GBP
$516 USD
As of October 30, 2026
Save £2,328 GBP (86%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £2,712 GBP at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 3.8ct lab-grown marquise diamond

This 3.8ct lab-grown marquise sits in the three to five carat band, graded F colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG843664686 or 843664686. Listed at 12 retailers as of October 30, 2026, with prices from £385 to £2,712, a £2,328 spread on the same certified stone. Brilliant Earth lists it at £2,712. 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

3.80
Carat
F
Colour
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG843664686
Dimensions16.19 × 8.38 × 5.07 mm
L/W Ratio1.93
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
16.19 mm8.38 mm3.80 ctF / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG843664686
Side View
Table 62.0%Crown 34.9°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 60.5%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £2,712 GBP|Low: £385 GBP|High: £2,712 GBP|Avg: £1,367 GBP
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 29, 2026
Retailer 9£385 GBP
Retailer 6£431 GBP
Retailer 5£717 GBP
Retailer 11£765 GBP
Retailer 8£1,231 GBP
Retailer 7£1,233 GBP
Retailer 10£1,254 GBP
Retailer 4£1,416 GBP
Retailer 12£1,646 GBP
Retailer 2£2,002 GBP
Retailer 3£2,147 GBP
Brilliant Earth£2,712 GBP

9 data points across 12 retailers

12 retailers£385 GBP to £2,712 GBP

A
Cheapest Retailer
-
£385 GBP
$516 USD
A
Retailer 2
-
£431 GBP
$578 USD
View
Retailer 3
-
£717 GBP
€916 EUR
View
Price last confirmed 8 days ago
A
Retailer 4
-
£765 GBP
$1,027 USD
View
A
Retailer 5
-
£1,231 GBP
$1,652 USD
View
B+
Retailer 6
-
£1,233 GBP
$1,655 USD
View
A
Retailer 7
-
£1,254 GBP
$1,683 USD
View
B+
Retailer 8
-
£1,416 GBP
$1,900 USD
View
B+
Retailer 9
-
£1,646 GBP
$2,209 USD
View
B+
Retailer 10
-
£2,002 GBP
View
B
Retailer 11
-
£2,147 GBP
$2,881 USD
View
Most Expensive
B
Brilliant Earth
21823638A · Oct 30
£2,712 GBP
$3,640 USD
View
11 more retailers have this diamond
Prices start from £385 GBPSave up to £2,328 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
3.80ct Marquise
£385 GBP