Emerald|Lab Grown|IGI

20.05ct F VS1 Emerald Lab Grown Diamond

GD • F/VS1 • IGI LG841644280

Shape and cutting style on the report: Emerald cut

Certificate IGI LG841644280

Diamond specifications and retailer prices

From £5,736 GBP
$7,698 USD
As of November 2, 2026
Save £2,653 GBP (32%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £28,317 GBP at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 20.05ct lab-grown emerald diamond

This 20.05ct lab-grown emerald sits in the over five carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a standard cut grade and certified by IGI LG841644280 or 841644280. Listed at 8 retailers as of October 29, 2026, with a 46% 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

20.05
Carat
F
Colour
VS1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.8°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG841644280
Dimensions18.72 × 13.00 × 8.05 mm
L/W Ratio1.44
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
18.72 mm13.00 mm20.05 ctF / VS1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG841644280
Side View
Table 66.0%Crown 31.8°Girdle: MediumPavilion 40.5°Culet: LargeDepth 61.9%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 2
Current: £5,736 GBP|Low: £5,085 GBP|High: £17,800 GBP|Avg: £8,368 GBP|-6.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 2, 2026
Retailer 5£5,085 GBP
Retailer 1£5,736 GBP
Retailer 3£6,081 GBP
Retailer 4£6,637 GBP
Retailer 7£7,489 GBP
Retailer 2£8,389 GBP
Retailer 6£17,800 GBP

9 data points across 7 retailers

8 retailers£5,736 GBP to £8,389 GBP

Retailer 1
-
£5,085 GBP
$6,824 USD
Price last confirmed 18 days ago
B
Retailer 2
-
£5,736 GBP
$7,698 USD
View
Retailer 3
-
£6,081 GBP
$8,160 USD
View
Price last confirmed 12 days ago
Retailer 4
-
£6,637 GBP
View
Price last confirmed 18 days ago
B
Retailer 5
-
£7,489 GBP
$10,050 USD
View
B
Retailer 6
-
£8,389 GBP
€10,722 EUR
View
Retailer 7
-
£17,800 GBP
$23,886 USD
View
Price last confirmed 18 days ago
Most Expensive
Brilliant Earth
22233615A · Nov 2
£28,317 GBP
$38,000 USD
View
Price under review
7 more retailers have this diamond
Prices start from £5,736 GBPSave up to £2,653 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
20.05ct Emerald
£5,736 GBP