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Emerald|Lab Grown|IGI

20.03ct F VS1 Emerald Lab Grown Diamond

VG • F/VS1 • IGI LG836688482

Shape and cutting style on the report: Emerald cut

Certificate IGI LG836688482

Diamond specifications and retailer prices

From £4,970 GBP
$6,670 USD
As of November 2, 2026
Save £14,191 GBP (74%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £19,162 GBP at Adiamor · As of November 2, 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 VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG836688482 or 836688482. Listed at 7 retailers as of November 2, 2026, with prices from £4,970 to £19,162, a £14,191 spread on the same certified stone. Adiamor lists it at £19,162. 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

20.03
Carat
F
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.4°
Pavilion angle37.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG836688482
Dimensions18.42 × 13.09 × 8.06 mm
L/W Ratio1.41
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
18.42 mm13.09 mm20.03 ctF / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG836688482
Side View
Table 80.0%Crown 41.4°Girdle: ThickPavilion 37.7°Culet: LargeDepth 61.6%

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: £19,162 GBP|Low: £4,970 GBP|High: £19,312 GBP|Avg: £11,311 GBP|-0.8%
Adiamor
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 2, 2026
Retailer 4£4,970 GBP
Retailer 6£6,013 GBP
Retailer 2£6,387 GBP
Retailer 5£7,314 GBP
Retailer 3£9,485 GBP
Retailer 7£17,460 GBP
Adiamor£19,162 GBP

33 data points across 7 retailers

7 retailers£4,970 GBP to £19,162 GBP

B+
Cheapest Retailer
-
£4,970 GBP
$6,670 USD
B+
Retailer 2
-
£6,013 GBP
$8,069 USD
View
B+
Retailer 3
-
£6,387 GBP
View
B
Retailer 4
-
£7,314 GBP
$9,815 USD
View
B
Retailer 5
-
£9,485 GBP
A$19,583 AUD
View
B
Retailer 6
-
£17,460 GBP
$23,431 USD
View
Most Expensive
B
Adiamor
D-82376070 · Nov 2
£19,162 GBP
$25,714 USD
View
6 more retailers have this diamond
Prices start from £4,970 GBPSave up to £14,191 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+
20.03ct Emerald
£4,970 GBP