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Emerald|Lab Grown|IGI

3.91ct G VS1 Emerald Lab Grown Diamond

ID • G/VS1 • IGI LG595391027

Shape and cutting style on the report: Emerald cut

Certificate IGI LG595391027

Diamond specifications and retailer prices

From £334 GBP
$447 USD
As of October 27, 2026
Save £2,271 GBP (87%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £2,605 GBP at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 3.91ct lab-grown emerald diamond

This 3.91ct 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 LG595391027 or 595391027. Listed at 20 retailers as of October 27, 2026, with prices from £334 to £2,605, a £2,271 spread on the same certified stone. Brilliant Earth lists it at £2,605. 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
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle37.3°
Pavilion angle44.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG595391027
Dimensions10.49 × 7.47 × 5.16 mm
L/W Ratio1.40
Culet sizeLong
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
10.49 mm7.47 mm3.91 ctG / VS1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateIGI LG595391027
Side View
Table 69.0%Crown 37.3°Girdle: MED-STKPavilion 44.2°Culet: LNGDepth 69.1%

Caratlytics Score

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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: Oct 27
Current: £2,605 GBP|Low: £320 GBP|High: £4,568 GBP|Avg: £999 GBP|-43.0%
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
Retailer 14
Retailer 15
Retailer 16
Retailer 17
October 31, 2026
Retailer 3£334 GBP
Retailer 2£374 GBP
Retailer 8£374 GBP
Retailer 4£413 GBP
Retailer 5£413 GBP
Retailer 7£650 GBP
Retailer 13£653 GBP
Retailer 9£663 GBP
Retailer 11£663 GBP
Retailer 10£682 GBP
Retailer 12£898 GBP
Retailer 16£990 GBP
Retailer 6£1,330 GBP
Retailer 15£1,528 GBP
Retailer 17£1,548 GBP
Retailer 14£2,127 GBP
Brilliant Earth£2,605 GBP

42 data points across 17 retailers

20 retailers£334 GBP to £2,605 GBP

A
Cheapest Retailer
-
£334 GBP
$447 USD
A
Retailer 2
-
£374 GBP
$501 USD
View
Final sale: no returns
A
Retailer 3
-
£374 GBP
$501 USD
View
A
Retailer 4
-
£413 GBP
$554 USD
View
Retailer 5
-
£413 GBP
$554 USD
View
Price last confirmed 15 days ago
B+
Retailer 6
-
£650 GBP
$871 USD
View
B+
Retailer 7
-
£653 GBP
$875 USD
View
A
Retailer 8
-
£663 GBP
$888 USD
View
A
Retailer 9
-
£663 GBP
€846 EUR
View
A
Retailer 10
-
£682 GBP
View
A
Retailer 11
-
£898 GBP
ZAR 19,440 ZAR
View
A
Retailer 12
-
£990 GBP
$1,326 USD
View
B+
Retailer 13
-
£1,083 GBP
$1,451 USD
View
B+
Retailer 14
-
£1,330 GBP
$1,782 USD
View
B+
Retailer 15
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£1,354 GBP
$1,814 USD
View
B+
Retailer 16
-
£1,522 GBP
$2,039 USD
View
B+
Retailer 17
-
£1,528 GBP
View
B+
Retailer 18
-
£1,548 GBP
$2,074 USD
View
Retailer 19
-
£2,127 GBP
$2,850 USD
View
Price last confirmed 13 days ago
Most Expensive
B
Brilliant Earth
8058543A · Oct 30
£2,605 GBP
$3,490 USD
View
19 more retailers have this diamond
Prices start from £334 GBPSave up to £2,271 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
£334 GBP