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Emerald|Lab Grown|IGI

3.90ct G VS1 Emerald Lab Grown Diamond

ID • G/VS1 • IGI LG647438289

Shape and cutting style on the report: Emerald cut

Certificate IGI LG647438289

Diamond specifications and retailer prices

From £313 GBP
$420 USD
As of October 27, 2026
Save £3,373 GBP (91%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £3,687 GBP at Kay Jewelers · As of October 26, 2026
View at Kay Jewelers

About this 3.9ct lab-grown emerald diamond

This 3.9ct lab-grown emerald sits in the three to five carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG647438289 or 647438289. Listed at 12 retailers as of October 26, 2026, with prices from £313 to £3,687, a £3,373 spread on the same certified stone. Kay Jewelers lists it at £3,687. 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

3.90
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.6°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG647438289
Dimensions10.59 × 7.35 × 4.99 mm
L/W Ratio1.44
Culet sizeLong
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.59 mm7.35 mm3.90 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG647438289
Side View
Table 65.0%Crown 37.6°Girdle: MediumPavilion 40.9°Culet: LNGDepth 67.9%

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 27
Current: £3,687 GBP|Low: £313 GBP|High: £3,687 GBP|Avg: £1,407 GBP
Kay Jewelers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
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Retailer 17
October 28, 2026
Retailer 14£313 GBP
Retailer 11£351 GBP
Retailer 4£391 GBP
Retailer 16£613 GBP
Retailer 2£616 GBP
Retailer 8£707 GBP
Retailer 7£808 GBP
Retailer 12£913 GBP
Retailer 13£1,090 GBP
Retailer 5£1,166 GBP
Retailer 17£1,379 GBP
Retailer 3£1,537 GBP
Retailer 10£1,578 GBP
Retailer 6£1,591 GBP
Retailer 9£2,313 GBP
Retailer 15£2,784 GBP
Kay Jewelers£3,687 GBP

23 data points across 17 retailers

12 retailers£313 GBP to £3,687 GBP

A
Cheapest Retailer
-
£313 GBP
$420 USD
A
Retailer 2
-
£351 GBP
$470 USD
View
A
Retailer 3
-
£391 GBP
$524 USD
View
Final sale: no returns
B+
Retailer 4
-
£613 GBP
$822 USD
View
A
Retailer 5
-
£616 GBP
$825 USD
View
Retailer 6
-
£913 GBP
A$1,882 AUD
View
Price last confirmed 11 days ago
A
Retailer 7
-
£1,090 GBP
$1,461 USD
View
B+
Retailer 8
-
£1,379 GBP
$1,848 USD
View
B+
Retailer 9
-
£1,537 GBP
$2,060 USD
View
B+
Retailer 10
-
£1,578 GBP
View
B
Retailer 11
-
£2,784 GBP
$3,730 USD
View
Most Expensive
B
Kay Jewelers
252146003 · Oct 26
£3,687 GBP
$4,940 USD
View
11 more retailers have this diamond
Prices start from £313 GBPSave up to £3,373 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
£313 GBP