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Emerald|Lab Grown|IGI

3.91ct F VS1 Emerald Lab Grown Diamond

VG • F/VS1 • IGI LG836698362

Shape and cutting style on the report: Emerald cut

Certificate IGI LG836698362

Diamond specifications and retailer prices

From £584 GBP
$782 USD
As of November 1, 2026
Save £1,313 GBP (69%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £2,467 GBP at Rare Carat · As of October 18, 2026
View at Rare Carat

About this 3.91ct lab-grown emerald diamond

This 3.91ct lab-grown emerald sits in the three to five carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG836698362 or 836698362. Listed at 8 retailers as of November 1, 2026, with a 225% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

3.91
Carat
F
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle29.8°
Pavilion angle41.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG836698362
Dimensions11.55 × 7.36 × 4.81 mm
L/W Ratio1.57
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.55 mm7.36 mm3.91 ctF / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG836698362
Side View
Table 57.0%Crown 29.8°Girdle: MediumPavilion 41.9°Culet: LargeDepth 65.4%

Caratlytics Score

How it works →
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: Nov 1
Current: £2,467 GBP|Low: £584 GBP|High: £2,504 GBP|Avg: £1,300 GBP|-1.5%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 5£584 GBP
Retailer 3£638 GBP
Retailer 2£714 GBP
Retailer 6£1,238 GBP
Retailer 8£1,422 GBP
Retailer 4£1,602 GBP
Retailer 7£1,858 GBP
Rare Carat£2,467 GBP

42 data points across 8 retailers

8 retailers£584 GBP to £1,896 GBP

B+
Cheapest Retailer
-
£584 GBP
$782 USD
A
Retailer 2
-
£638 GBP
€814 EUR
View
A
Retailer 3
-
£714 GBP
View
B+
Retailer 4
-
£1,238 GBP
$1,659 USD
View
B+
Retailer 5
-
£1,422 GBP
$1,906 USD
View
B+
Retailer 6
-
£1,602 GBP
View
B
Retailer 7
-
£1,896 GBP
$2,541 USD
View
Most Expensive
Rare Carat
AK60001202 · Oct 18
£2,467 GBP
$3,305 USD
View
Price last confirmed 14 days ago
7 more retailers have this diamond
Prices start from £584 GBPSave up to £1,313 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 Emerald
£584 GBP