CaratHunter
Plans
Oval|Lab Grown|IGI

3.91ct F VS2 Oval Lab Grown Diamond

EX • F/VS2 • IGI LG844648429

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG844648429

Diamond specifications and retailer prices

From £402 GBP
$539 USD
As of October 28, 2026
Save £353 GBP (47%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £756 GBP at 77 Diamonds · As of October 25, 2026
View at 77 Diamonds

About this 3.91ct lab-grown oval diamond

This 3.91ct lab-grown oval 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 LG844648429 or 844648429. Listed at 2 retailers as of October 25, 2026, with prices from £402 to £756, a £353 spread on the same certified stone. 77 Diamonds lists it at £756. 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

3.91
Carat
F
Colour
VS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.9°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG844648429
Dimensions12.66 × 8.75 × 5.49 mm
L/W Ratio1.45
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.66 mm8.75 mm3.91 ctF / VS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG844648429
Side View
Table 61.0%Crown 35.9°Girdle: MED-THKPavilion 40.4°Culet: NoneDepth 62.7%

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: Oct 28
Current: £756 GBP|Low: £402 GBP|High: £788 GBP|Avg: £659 GBP|-4.1%
77 Diamonds
Retailer 2
October 25, 2026
Retailer 2£402 GBP
77 Diamonds£756 GBP

11 data points across 2 retailers

2 retailers£402 GBP to £756 GBP

A
Cheapest Retailer
-
£402 GBP
$539 USD
Final sale: no returns
Most Expensive
A
77 Diamonds
OVTVSAFUYT4KT · Oct 25
£756 GBP
View
1 more retailer has this diamond
Prices start from £402 GBPSave up to £353 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
3.91ct Oval
£402 GBP