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Emerald|Lab Grown|IGI

3.90ct F VS1 Emerald Lab Grown Diamond

VG • F/VS1 • IGI LG646474860

Shape and cutting style on the report: Emerald cut

Certificate IGI LG646474860

Diamond specifications and retailer prices

From £349 GBP
$468 USD
As of October 30, 2026
Save £3,091 GBP (90%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £3,441 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 3.9ct lab-grown emerald diamond

This 3.9ct 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 LG646474860 or 646474860. Listed at 11 retailers as of October 29, 2026, with prices from £349 to £3,441, a £3,091 spread on the same certified stone. Brilliant Earth lists it at £3,441. 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

3.90
Carat
F
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.6°
Pavilion angle43.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG646474860
Dimensions10.42 × 7.20 × 4.87 mm
L/W Ratio1.45
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.42 mm7.20 mm3.90 ctF / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG646474860
Side View
Table 68.0%Crown 38.6°Girdle: MED-STKPavilion 43.5°Culet: LargeDepth 67.6%

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 30
Current: £3,441 GBP|Low: £335 GBP|High: £3,545 GBP|Avg: £1,403 GBP|-2.9%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 31, 2026
Retailer 10£349 GBP
Retailer 12£391 GBP
Retailer 2£537 GBP
Retailer 9£575 GBP
Retailer 13£680 GBP
Retailer 6£1,010 GBP
Retailer 5£1,101 GBP
Retailer 8£1,164 GBP
Retailer 11£1,258 GBP
Retailer 7£2,007 GBP
Retailer 4£2,333 GBP
Retailer 3£3,105 GBP
Brilliant Earth£3,441 GBP

25 data points across 13 retailers

11 retailers£349 GBP to £3,441 GBP

A
Cheapest Retailer
-
£349 GBP
$468 USD
A
Retailer 2
-
£391 GBP
$524 USD
View
A
Retailer 3
-
£537 GBP
$720 USD
View
B+
Retailer 4
-
£575 GBP
$770 USD
View
A
Retailer 5
-
£680 GBP
$911 USD
View
A
Retailer 6
-
£1,010 GBP
A$2,081 AUD
View
B+
Retailer 7
-
£1,164 GBP
$1,560 USD
View
B+
Retailer 8
-
£1,258 GBP
$1,685 USD
View
B
Retailer 9
-
£2,007 GBP
View
B
Retailer 10
-
£3,105 GBP
$4,160 USD
View
Most Expensive
B
Brilliant Earth
14987458Y · Oct 29
£3,441 GBP
$4,610 USD
View
10 more retailers have this diamond
Prices start from £349 GBPSave up to £3,091 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
3.90ct Emerald
£349 GBP