CaratHunter
Plans
Marquise|Lab Grown|IGI

3.82ct F VS1 Marquise Lab Grown Diamond

EX • F/VS1 • IGI LG810638125

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG810638125

Diamond specifications and retailer prices

From £439 GBP
$589 USD
As of November 1, 2026
Save £1,998 GBP (82%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £3,115 GBP at Brilliant Earth · As of October 16, 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 LG810638125 or 810638125. Listed at 5 retailers as of October 28, 2026, with a 455% 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 angle35.3°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG810638125
Dimensions16.92 × 8.05 × 4.99 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
16.92 mm8.05 mm3.82 ctF / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG810638125
Side View
Table 61.0%Crown 35.3°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.0%

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: £3,115 GBP|Low: £434 GBP|High: £3,204 GBP|Avg: £1,403 GBP|-2.8%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 3£439 GBP
Retailer 5£589 GBP
Retailer 9£733 GBP
Retailer 2£778 GBP
Retailer 10£1,137 GBP
Retailer 6£1,200 GBP
Retailer 8£1,317 GBP
Retailer 7£1,578 GBP
Retailer 4£2,437 GBP
Brilliant Earth£3,115 GBP

39 data points across 10 retailers

5 retailers£439 GBP to £2,437 GBP

A
Cheapest Retailer
-
£439 GBP
$589 USD
Final sale: no returns
A
Retailer 2
-
£778 GBP
View
Retailer 3
-
£2,057 GBP
A$4,246 AUD
View
Price last confirmed 121 days ago
B
Retailer 4
-
£2,437 GBP
$3,270 USD
View
Most Expensive
Brilliant Earth
20465957A · Oct 16
£3,115 GBP
$4,180 USD
View
Price last confirmed 17 days ago
4 more retailers have this diamond
Prices start from £439 GBPSave up to £1,998 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
£439 GBP