Emerald|Lab Grown|IGI

20.05ct F VS1 Emerald Lab Grown Diamond

ID • F/VS1 • IGI LG843679626

Shape and cutting style on the report: Emerald cut

Certificate IGI LG843679626

Diamond specifications and retailer prices

From $9,084 AUD
$6,381 USD
As of October 31, 2026
Save $27,564 AUD (75%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $54,097 AUD at Brilliant Earth · As of October 31, 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 top-tier cut grade and certified by IGI LG843679626 or 843679626. Listed at 10 retailers as of October 31, 2026, with a 303% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

20.05
Carat
F
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.9°
Pavilion angle42.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG843679626
Dimensions18.67 × 12.61 × 8.03 mm
L/W Ratio1.48
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
18.67 mm12.61 mm20.05 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG843679626
Side View
Table 69.0%Crown 37.9°Girdle: ThickPavilion 42.4°Culet: LargeDepth 63.7%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $12,150 AUD|Low: $9,084 AUD|High: $36,648 AUD|Avg: $20,210 AUD|-16.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 6$9,084 AUD
Retailer 4$12,089 AUD
Retailer 1$12,150 AUD
Retailer 2$14,899 AUD
Retailer 7$15,244 AUD
Retailer 3$21,847 AUD
Retailer 5$28,149 AUD
Retailer 8$36,648 AUD

10 data points across 8 retailers

10 retailers$9,084 AUD to $36,648 AUD

B+
Cheapest Retailer
-
$9,084 AUD
$6,381 USD
Final sale: no returns
B+
Retailer 2
-
$11,170 AUD
$7,846 USD
View
B+
Retailer 3
-
$12,089 AUD
£6,687 GBP
View
B+
Retailer 4
-
$12,150 AUD
$8,535 USD
View
B
Retailer 5
-
$14,899 AUD
View
B+
Retailer 6
-
$15,244 AUD
€10,198 EUR
View
B
Retailer 7
-
$21,847 AUD
$15,346 USD
View
B
Retailer 8
-
$28,149 AUD
$19,773 USD
View
B
Retailer 9
-
$36,648 AUD
$25,743 USD
View
Most Expensive
Brilliant Earth
22286334A · Oct 31
$54,097 AUD
$38,000 USD
View
Price under review
9 more retailers have this diamond
Prices start from $9,084 AUDSave up to $27,564 AUD

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
$9,084 AUD