Emerald|Lab Grown|IGI

20.03ct F VS2 Emerald Lab Grown Diamond

ID • F/VS2 • IGI LG787645131

Shape and cutting style on the report: Emerald cut

Certificate IGI LG787645131

Diamond specifications and retailer prices

From £3,616 GBP
$4,845 USD
As of October 31, 2026
Save £14,338 GBP (80%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £17,954 GBP at Adiamor · As of October 31, 2026
View at Adiamor

About this 20.03ct lab-grown emerald diamond

This 20.03ct lab-grown emerald sits in the over five carat band, graded F colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG787645131 or 787645131. Listed at 11 retailers as of October 31, 2026, with prices from £3,616 to £17,954, a £14,338 spread on the same certified stone. Adiamor lists it at £17,954. 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

20.03
Carat
F
Colour
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41°
Pavilion angle42.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG787645131
Dimensions18.45 × 12.49 × 7.98 mm
L/W Ratio1.48
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
18.45 mm12.49 mm20.03 ctF / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG787645131
Side View
Table 68.0%Crown 41°Girdle: Slightly ThickPavilion 42.2°Culet: LargeDepth 63.9%

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: Oct 31
Current: £17,954 GBP|Low: £3,203 GBP|High: £18,019 GBP|Avg: £6,902 GBP|-0.3%
Adiamor
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 10£3,203 GBP
Retailer 4£3,616 GBP
Retailer 8£3,712 GBP
Retailer 9£3,870 GBP
Retailer 6£3,927 GBP
Retailer 2£4,722 GBP
Retailer 7£4,748 GBP
Retailer 5£5,306 GBP
Retailer 3£12,987 GBP
Adiamor£17,954 GBP

45 data points across 10 retailers

11 retailers£3,616 GBP to £17,954 GBP

Retailer 1
-
£3,203 GBP
$4,292 USD
Price last confirmed 30 days ago
Retailer 2
-
£3,497 GBP
$4,685 USD
View
Price last confirmed 37 days ago
A
Retailer 3
-
£3,616 GBP
$4,845 USD
View
Retailer 4
-
£3,712 GBP
$4,974 USD
View
Price last confirmed 19 days ago
Retailer 5
-
£3,870 GBP
$5,186 USD
View
Price last confirmed 28 days ago
A
Retailer 6
-
£3,927 GBP
$5,262 USD
View
B+
Retailer 7
-
£4,722 GBP
View
B+
Retailer 8
-
£4,748 GBP
$6,362 USD
View
B+
Retailer 9
-
£5,306 GBP
$7,110 USD
View
B
Retailer 10
-
£12,987 GBP
$17,401 USD
View
Most Expensive
B
Adiamor
D-80785784 · Oct 31
£17,954 GBP
$24,057 USD
View
10 more retailers have this diamond
Prices start from £3,616 GBPSave up to £14,338 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
20.03ct Emerald
£3,616 GBP