CaratHunter
Plans
Emerald|Lab Grown|IGI

20.01ct F VS1 Emerald Lab Grown Diamond

VG • F/VS1 • IGI LG846634033

Shape and cutting style on the report: Emerald cut

Certificate IGI LG846634033

Diamond specifications and retailer prices

From £4,165 GBP
$5,589 USD
As of November 2, 2026
Save £14,624 GBP (78%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £18,788 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 very-good cut grade and certified by IGI LG846634033 or 846634033. Listed at 5 retailers as of November 2, 2026, with prices from £4,165 to £18,788, a £14,624 spread on the same certified stone. Adiamor lists it at £18,788. 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

20.01
Carat
F
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle38.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG846634033
Dimensions18.96 × 12.89 × 7.88 mm
L/W Ratio1.47
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
18.96 mm12.89 mm20.01 ctF / VS1
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateIGI LG846634033
Side View
Table 71.0%Crown 35.6°Girdle: MediumPavilion 38.6°Culet: LargeDepth 61.1%

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 2
Current: £18,788 GBP|Low: £4,165 GBP|High: £18,788 GBP|Avg: £9,402 GBP
Adiamor
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 3, 2026
Retailer 4£4,165 GBP
Retailer 2£5,010 GBP
Retailer 3£5,630 GBP
Retailer 5£13,784 GBP
Adiamor£18,788 GBP

5 data points across 5 retailers

5 retailers£4,165 GBP to £18,788 GBP

B+
Cheapest Retailer
-
£4,165 GBP
$5,589 USD
B+
Retailer 2
-
£5,010 GBP
View
B
Retailer 3
-
£5,630 GBP
$7,555 USD
View
B
Retailer 4
-
£13,784 GBP
$18,497 USD
View
Most Expensive
C
Adiamor
D-82885693 · Nov 2
£18,788 GBP
$25,213 USD
View
4 more retailers have this diamond
Prices start from £4,165 GBPSave up to £14,624 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+
20.01ct Emerald
£4,165 GBP