CaratHunter
Plans
Marquise|Lab Grown|IGI

3.82ct F VS1 Marquise Lab Grown Diamond

EX • F/VS1 • IGI LG840664049

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG840664049

Diamond specifications and retailer prices

From £434 GBP
$583 USD
As of November 1, 2026
Save £2,002 GBP (82%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £3,115 GBP at Brilliant Earth · As of October 24, 2026
View at Brilliant Earth

About this 3.82ct lab-grown marquise diamond

This 3.82ct lab-grown marquise sits in the three to five carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG840664049 or 840664049. Listed at 4 retailers as of October 28, 2026, with a 461% 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

3.82
Carat
F
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840664049
Dimensions16.93 × 8.07 × 4.95 mm
L/W Ratio2.10
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
16.93 mm8.07 mm3.82 ctF / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840664049
Side View
Table 59.0%Crown 34.5°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 61.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: £770 GBP|Low: £430 GBP|High: £2,467 GBP|Avg: £1,363 GBP|-4.4%
Retailer 1
Retailer 2
Retailer 3
November 2, 2026
Retailer 3£434 GBP
Retailer 1£770 GBP
Retailer 2£2,437 GBP

28 data points across 3 retailers

4 retailers£434 GBP to £2,437 GBP

A
Cheapest Retailer
-
£434 GBP
$583 USD
Final sale: no returns
A
Retailer 2
-
£770 GBP
View
B
Retailer 3
-
£2,437 GBP
$3,270 USD
View
Most Expensive
Brilliant Earth
21810760A · Oct 24
£3,115 GBP
$4,180 USD
View
Price last confirmed 9 days ago
3 more retailers have this diamond
Prices start from £434 GBPSave up to £2,002 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
3.82ct Marquise
£434 GBP