Emerald|Lab Grown|IGI

20.02ct F VS1 Emerald Lab Grown Diamond

ID • F/VS1 • IGI LG830655887

Shape and cutting style on the report: Emerald cut

Certificate IGI LG830655887

Diamond specifications and retailer prices

From £4,917 GBP
$6,598 USD
As of October 30, 2026
Save £14,702 GBP (75%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £19,619 GBP at Taylor and Hart · As of October 30, 2026
View at Taylor and Hart

About this 20.02ct lab-grown emerald diamond

This 20.02ct 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 LG830655887 or 830655887. Listed at 14 retailers as of October 30, 2026, with prices from £4,917 to £19,619, a £14,702 spread on the same certified stone. Taylor and Hart lists it at £19,619. 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

20.02
Carat
F
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle38.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG830655887
Dimensions18.58 × 12.58 × 8.44 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
18.58 mm12.58 mm20.02 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG830655887
Side View
Table 64.0%Crown 35.5°Girdle: STK-THKPavilion 38.9°Culet: LargeDepth 67.1%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £7,165 GBP|Low: £4,720 GBP|High: £19,619 GBP|Avg: £8,506 GBP|+0.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Taylor and Hart
October 31, 2026
Retailer 10£4,917 GBP
Retailer 11£5,113 GBP
Retailer 4£5,617 GBP
Retailer 12£5,682 GBP
Retailer 3£5,703 GBP
Retailer 13£5,703 GBP
Retailer 8£6,215 GBP
Retailer 9£6,666 GBP
Retailer 2£6,770 GBP
Retailer 6£7,124 GBP
Retailer 1£7,165 GBP
Retailer 7£10,922 GBP
Retailer 5£19,367 GBP
Taylor and Hart£19,619 GBP

40 data points across 14 retailers

14 retailers£4,917 GBP to £19,619 GBP

B+
Cheapest Retailer
-
£4,917 GBP
$6,598 USD
B+
Retailer 2
-
£5,113 GBP
$6,862 USD
View
B+
Retailer 3
-
£5,617 GBP
$7,538 USD
View
B+
Retailer 4
-
£5,682 GBP
$7,625 USD
View
Retailer 5
-
£5,703 GBP
$7,653 USD
View
Price last confirmed 21 days ago
B+
Retailer 6
-
£5,703 GBP
$7,653 USD
View
Retailer 7
-
£6,215 GBP
$8,340 USD
View
Price last confirmed 12 days ago
B+
Retailer 8
-
£6,666 GBP
$8,946 USD
View
B+
Retailer 9
-
£6,770 GBP
$9,085 USD
View
B
Retailer 10
-
£7,124 GBP
$9,560 USD
View
B+
Retailer 11
-
£7,165 GBP
View
Retailer 12
-
£10,922 GBP
A$22,549 AUD
View
Price last confirmed 11 days ago
B
Retailer 13
-
£19,367 GBP
$25,990 USD
View
Most Expensive
B
Taylor and Hart
O5CDGUS · Oct 30
£19,619 GBP
$26,327 USD
View
13 more retailers have this diamond
Prices start from £4,917 GBPSave up to £14,702 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.

B+
20.02ct Emerald
£4,917 GBP