Emerald|Lab Grown|IGI

20.09ct F VS1 Emerald Lab Grown Diamond

VG • F/VS1 • IGI LG849648389

Shape and cutting style on the report: Emerald cut

Certificate IGI LG849648389

Diamond specifications and retailer prices

From $5,296 USD
As of October 31, 2026
Save $20,313 USD (79%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $38,080 USD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 20.09ct lab-grown emerald diamond

This 20.09ct 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 LG849648389 or 849648389. Listed at 13 retailers as of October 31, 2026, with a 384% 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

20.09
Carat
F
Color
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.8°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG849648389
Dimensions18.03 × 12.56 × 8.89 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
18.03 mm12.56 mm20.09 ctF / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG849648389
Side View
Table 64.0%Crown 36.8°Girdle: Slightly ThickPavilion 41.3°Culet: LargeDepth 70.8%

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: Oct 31
Current: $8,553 USD|Low: $5,296 USD|High: $25,609 USD|Avg: $10,421 USD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 1, 2026
Retailer 2$5,296 USD
Retailer 10$5,531 USD
Retailer 12$5,659 USD
Retailer 7$5,885 USD
Retailer 4$6,032 USD
Retailer 11$6,959 USD
Retailer 8$7,500 USD
Retailer 1$8,553 USD
Retailer 5$10,486 USD
Retailer 6$15,376 USD
Retailer 9$19,813 USD
Retailer 3$25,609 USD

3 data points across 12 retailers

13 retailers$5,296 USD to $25,609 USD

A
Cheapest Retailer
-
$5,296 USD
B+
Retailer 2
-
$5,531 USD
View
B+
Retailer 3
-
$5,659 USD
View
Final sale: no returns
B+
Retailer 4
-
$5,885 USD
View
B+
Retailer 5
-
$6,032 USD
View
B+
Retailer 6
-
$6,959 USD
View
B+
Retailer 7
-
$7,500 USD
£5,906 GBP
View
B
Retailer 8
-
$8,553 USD
View
B
Retailer 9
-
$10,486 USD
A$16,133 AUD
View
B
Retailer 10
-
$15,376 USD
View
B
Retailer 11
-
$19,813 USD
View
B
Retailer 12
-
$25,609 USD
View
Most Expensive
Brilliant Earth
22388316A · Oct 31
$38,080 USD
View
Price under review
12 more retailers have this diamond
Prices start from $5,296 USDSave up to $20,313 USD

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
20.09ct Emerald
$5,296 USD