Emerald|Lab Grown|IGI

20.12ct F VS1 Emerald Lab Grown Diamond

VG • F/VS1 • IGI LG847609034

Shape and cutting style on the report: Emerald cut

Certificate IGI LG847609034

Diamond specifications and retailer prices

From $4,855 USD
As of October 31, 2026
Save $20,677 USD (81%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $25,532 USD at Adiamor · As of October 31, 2026
View at Adiamor

About this 20.12ct lab-grown emerald diamond

This 20.12ct 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 LG847609034 or 847609034. Listed at 10 retailers as of October 31, 2026, with prices from $4,855 to $25,532, a $20,677 spread on the same certified stone. Adiamor lists it at $25,532. 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

20.12
Carat
F
Color
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG847609034
Dimensions18.80 × 12.90 × 8.53 mm
L/W Ratio1.46
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
18.80 mm12.90 mm20.12 ctF / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG847609034
Side View
Table 67.0%Crown 34.4°Girdle: MediumPavilion 40.6°Culet: LargeDepth 66.1%

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: $25,532 USD|Low: $4,855 USD|High: $25,532 USD|Avg: $10,834 USD
Adiamor
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 6$4,855 USD
Retailer 4$5,374 USD
Retailer 2$5,410 USD
Retailer 10$5,686 USD
Retailer 5$6,715 USD
Retailer 3$6,984 USD
Retailer 9$7,848 USD
Retailer 7$8,639 USD
Retailer 8$19,221 USD
Adiamor$25,532 USD

8 data points across 10 retailers

10 retailers$4,855 USD to $25,532 USD

A
Cheapest Retailer
-
$4,855 USD
B+
Retailer 2
-
$5,374 USD
View
B+
Retailer 3
-
$5,410 USD
View
B+
Retailer 4
-
$5,686 USD
View
B+
Retailer 5
-
$6,715 USD
View
B+
Retailer 6
-
$6,984 USD
£5,500 GBP
View
B+
Retailer 7
-
$7,848 USD
View
B+
Retailer 8
-
$8,639 USD
€8,228 EUR
View
B
Retailer 9
-
$19,221 USD
View
Most Expensive
B
Adiamor
D-82814565 · Oct 31
$25,532 USD
View
9 more retailers have this diamond
Prices start from $4,855 USDSave up to $20,677 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
20.12ct Emerald
$4,855 USD