Emerald|Lab Grown|IGI

20.01ct F VS1 Emerald Lab Grown Diamond

ID • F/VS1 • IGI LG808638702

Shape and cutting style on the report: Emerald cut

Certificate IGI LG808638702

Diamond specifications and retailer prices

From £4,169 GBP
$5,594 USD
As of November 2, 2026
Save £14,916 GBP (78%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £19,085 GBP at Adiamor · As of November 2, 2026
View at Adiamor

About this 20.01ct lab-grown emerald diamond

This 20.01ct lab-grown emerald sits in the over five carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG808638702 or 808638702. Listed at 15 retailers as of November 2, 2026, with prices from £4,169 to £19,085, a £14,916 spread on the same certified stone. Adiamor lists it at £19,085. 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

20.01
Carat
F
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.6°
Pavilion angle39.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG808638702
Dimensions18.77 × 12.62 × 8.04 mm
L/W Ratio1.49
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
18.77 mm12.62 mm20.01 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG808638702
Side View
Table 66.0%Crown 31.6°Girdle: Slightly ThickPavilion 39.9°Culet: LargeDepth 63.7%

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: Nov 2
Current: £19,085 GBP|Low: £4,169 GBP|High: £19,240 GBP|Avg: £7,856 GBP|-0.8%
Adiamor
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
November 3, 2026
Retailer 9£4,169 GBP
Retailer 5£4,368 GBP
Retailer 12£4,836 GBP
Retailer 8£4,836 GBP
Retailer 14£4,891 GBP
Retailer 6£5,116 GBP
Retailer 13£5,740 GBP
Retailer 3£5,790 GBP
Retailer 11£5,955 GBP
Retailer 2£6,209 GBP
Retailer 10£7,466 GBP
Retailer 7£9,221 GBP
Retailer 4£17,066 GBP
Adiamor£19,085 GBP

44 data points across 14 retailers

15 retailers£4,169 GBP to £19,085 GBP

A
Cheapest Retailer
-
£4,169 GBP
$5,594 USD
A
Retailer 2
-
£4,368 GBP
$5,862 USD
View
B+
Retailer 3
-
£4,836 GBP
$6,489 USD
View
B+
Retailer 4
-
£4,836 GBP
$6,490 USD
View
B+
Retailer 5
-
£4,891 GBP
$6,564 USD
View
Retailer 6
-
£5,116 GBP
$6,866 USD
View
Price last confirmed 21 days ago
B+
Retailer 7
-
£5,740 GBP
$7,703 USD
View
B+
Retailer 8
-
£5,790 GBP
HK$60,700 HKD
View
B+
Retailer 9
-
£5,955 GBP
$7,991 USD
View
Retailer 10
-
£5,973 GBP
$8,015 USD
View
Price last confirmed 12 days ago
B+
Retailer 11
-
£6,209 GBP
View
B+
Retailer 12
-
£7,466 GBP
$10,019 USD
View
B
Retailer 13
-
£9,221 GBP
A$19,036 AUD
View
B
Retailer 14
-
£17,066 GBP
$22,901 USD
View
Most Expensive
B
Adiamor
D-80463451 · Nov 2
£19,085 GBP
$25,611 USD
View
14 more retailers have this diamond
Prices start from £4,169 GBPSave up to £14,916 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
20.01ct Emerald
£4,169 GBP