Emerald|Lab Grown|IGI

20.07ct F VS1 Emerald Lab Grown Diamond

VG • F/VS1 • IGI LG826683025

Shape and cutting style on the report: Emerald cut

Certificate IGI LG826683025

Diamond specifications and retailer prices

From £4,313 GBP
$5,788 USD
As of November 2, 2026
Save £14,930 GBP (78%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £28,347 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 20.07ct lab-grown emerald diamond

This 20.07ct 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 LG826683025 or 826683025. Listed at 15 retailers as of October 31, 2026, with a 346% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

20.07
Carat
F
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.2°
Pavilion angle41.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG826683025
Dimensions18.30 × 13.12 × 8.21 mm
L/W Ratio1.39
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
18.30 mm13.12 mm20.07 ctF / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG826683025
Side View
Table 69.0%Crown 34.2°Girdle: Slightly ThickPavilion 41.4°Culet: LargeDepth 62.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: £28,347 GBP|Low: £4,313 GBP|High: £53,234 GBP|Avg: £12,014 GBP
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 9£4,313 GBP
Retailer 6£5,004 GBP
Retailer 7£5,887 GBP
Retailer 8£6,054 GBP
Retailer 4£6,432 GBP
Retailer 10£7,725 GBP
Retailer 5£9,312 GBP
Retailer 2£9,553 GBP
Retailer 3£17,561 GBP
Retailer 11£19,243 GBP
Brilliant Earth£28,347 GBP

40 data points across 11 retailers

15 retailers£4,313 GBP to £19,243 GBP

A
Cheapest Retailer
-
£4,313 GBP
$5,788 USD
B+
Retailer 2
-
£4,520 GBP
$6,066 USD
View
B+
Retailer 3
-
£5,004 GBP
$6,715 USD
View
Retailer 4
-
£5,004 GBP
$6,715 USD
View
Price last confirmed 20 days ago
B+
Retailer 5
-
£5,004 GBP
$6,715 USD
View
Retailer 6
-
£5,887 GBP
$7,900 USD
View
Price last confirmed 12 days ago
B+
Retailer 7
-
£5,940 GBP
$7,971 USD
View
B+
Retailer 8
-
£6,054 GBP
$8,124 USD
View
B+
Retailer 9
-
£6,432 GBP
View
B
Retailer 10
-
£7,725 GBP
$10,366 USD
View
B
Retailer 11
-
£9,312 GBP
€11,901 EUR
View
B
Retailer 12
-
£9,553 GBP
A$19,722 AUD
View
B
Retailer 13
-
£17,561 GBP
$23,566 USD
View
B
Retailer 14
-
£19,243 GBP
$25,823 USD
View
Most Expensive
Brilliant Earth
21566733A · Oct 31
£28,347 GBP
$38,040 USD
View
Price under review
14 more retailers have this diamond
Prices start from £4,313 GBPSave up to £14,930 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.

A
20.07ct Emerald
£4,313 GBP