Emerald|Lab Grown|IGI

20.09ct F VVS2 Emerald Lab Grown Diamond

VG • F/VVS2 • IGI LG849648390

Shape and cutting style on the report: Emerald cut

Certificate IGI LG849648390

Diamond specifications and retailer prices

From £3,953 GBP
$5,296 USD
As of October 31, 2026
Save £16,445 GBP (81%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £30,794 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 20.09ct lab-grown emerald diamond

This 20.09ct lab-grown emerald sits in the over five carat band, graded F colour (colourless) and VVS2 clarity (very-very-slightly-included), with a very-good cut grade and certified by IGI LG849648390 or 849648390. Listed at 10 retailers as of October 31, 2026, with a 416% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

20.09
Carat
F
Colour
VVS2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.3°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG849648390
Dimensions18.66 × 12.63 × 8.30 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
18.66 mm12.63 mm20.09 ctF / VVS2
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG849648390
Side View
Table 63.0%Crown 36.3°Girdle: Slightly ThickPavilion 40.1°Culet: LargeDepth 65.7%

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 31
Current: £4,392 GBP|Low: £3,953 GBP|High: £20,398 GBP|Avg: £7,768 GBP
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 7£3,953 GBP
Retailer 4£4,128 GBP
Retailer 6£4,223 GBP
Retailer 1£4,392 GBP
Retailer 9£4,502 GBP
Retailer 5£5,159 GBP
Retailer 2£5,256 GBP
Retailer 3£14,787 GBP
Retailer 8£20,398 GBP

3 data points across 9 retailers

10 retailers£3,953 GBP to £20,398 GBP

A
Cheapest Retailer
-
£3,953 GBP
$5,296 USD
B+
Retailer 2
-
£4,128 GBP
$5,531 USD
View
B+
Retailer 3
-
£4,223 GBP
$5,659 USD
View
Final sale: no returns
B+
Retailer 4
-
£4,392 GBP
$5,885 USD
View
B+
Retailer 5
-
£4,502 GBP
$6,032 USD
View
B+
Retailer 6
-
£5,159 GBP
$6,912 USD
View
B+
Retailer 7
-
£5,256 GBP
View
B
Retailer 8
-
£14,787 GBP
$19,813 USD
View
B
Retailer 9
-
£20,398 GBP
$27,331 USD
View
Most Expensive
Brilliant Earth
22388324A · Oct 31
£30,794 GBP
$41,260 USD
View
Price under review
9 more retailers have this diamond
Prices start from £3,953 GBPSave up to £16,445 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
20.09ct Emerald
£3,953 GBP