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Emerald|Lab Grown|IGI

20.00ct F VS2 Emerald Lab Grown Diamond

VG • F/VS2 • IGI LG831678765

Shape and cutting style on the report: Emerald cut

Certificate IGI LG831678765

Diamond specifications and retailer prices

From £5,015 GBP
As of October 30, 2026
Save £12,951 GBP (72%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £17,966 GBP at Adiamor · As of October 31, 2026
View at Adiamor

About this 20ct lab-grown emerald diamond

This 20ct lab-grown emerald sits in the over five carat band, graded F colour (colourless) and VS2 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG831678765 or 831678765. Listed at 4 retailers as of October 30, 2026, with prices from £5,015 to £17,966, a £12,951 spread on the same certified stone. Adiamor lists it at £17,966. 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

20.00
Carat
F
Colour
VS2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle41.5°
Pavilion angle44.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG831678765
Dimensions18.18 × 12.70 × 8.10 mm
L/W Ratio1.43
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
18.18 mm12.70 mm20.00 ctF / VS2
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG831678765
Side View
Table 66.0%Crown 41.5°Girdle: MED-THKPavilion 44.8°Culet: LargeDepth 63.8%

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: £17,966 GBP|Low: £4,985 GBP|High: £17,966 GBP|Avg: £10,477 GBP
Adiamor
Retailer 2
Retailer 3
Retailer 4
October 30, 2026
Retailer 2£5,015 GBP
Retailer 3£5,980 GBP
Retailer 4£13,798 GBP
Adiamor£17,966 GBP

33 data points across 4 retailers

4 retailers£5,015 GBP to £17,966 GBP

B+
Cheapest Retailer
-
£5,015 GBP
B
Retailer 2
-
£5,980 GBP
$8,013 USD
View
Retailer 3
-
£13,798 GBP
$18,488 USD
View
Price last confirmed 13 days ago
Most Expensive
C
Adiamor
D-82280554 · Oct 31
£17,966 GBP
$24,073 USD
View
3 more retailers have this diamond
Prices start from £5,015 GBPSave up to £12,951 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+
20.00ct Emerald
£5,015 GBP