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Emerald|Lab Grown|IGI

20.10ct F VS1 Emerald Lab Grown Diamond

ID • F/VS1 • IGI LG835641351

Shape and cutting style on the report: Emerald cut

Certificate IGI LG835641351

Diamond specifications and retailer prices

From £5,999 GBP
$8,050 USD
As of November 1, 2026
Save £12,743 GBP (68%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £28,906 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 20.1ct lab-grown emerald diamond

This 20.1ct 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 LG835641351 or 835641351. Listed at 6 retailers as of November 1, 2026, with a 212% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

20.10
Carat
F
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle27.7°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG835641351
Dimensions18.83 × 13.22 × 8.05 mm
L/W Ratio1.42
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
18.83 mm13.22 mm20.10 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG835641351
Side View
Table 64.0%Crown 27.7°Girdle: MediumPavilion 39.5°Culet: LargeDepth 60.9%

Caratlytics Score

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

Price History

Last verified: Nov 1
Current: £7,027 GBP|Low: £5,999 GBP|High: £19,325 GBP|Avg: £11,126 GBP|-15.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 1, 2026
Retailer 3£5,999 GBP
Retailer 5£6,546 GBP
Retailer 1£7,027 GBP
Retailer 6£7,123 GBP
Retailer 4£11,256 GBP
Retailer 2£18,742 GBP
Retailer 7£19,325 GBP

9 data points across 7 retailers

6 retailers£5,999 GBP to £18,742 GBP

B+
Cheapest Retailer
-
£5,999 GBP
$8,050 USD
Retailer 2
-
£6,546 GBP
$8,785 USD
View
Price last confirmed 35 days ago
B+
Retailer 3
-
£7,027 GBP
$9,430 USD
View
B
Retailer 4
-
£11,256 GBP
€14,385 EUR
View
B
Retailer 5
-
£18,742 GBP
$25,150 USD
View
Most Expensive
Brilliant Earth
22398790A · Oct 31
£28,906 GBP
$38,790 USD
View
Price under review
5 more retailers have this diamond
Prices start from £5,999 GBPSave up to £12,743 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+
20.10ct Emerald
£5,999 GBP