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Emerald|Lab Grown|IGI

20.00ct F VS1 Emerald Lab Grown Diamond

ID • F/VS1 • IGI LG818611254

Shape and cutting style on the report: Emerald cut

Certificate IGI LG818611254

Diamond specifications and retailer prices

From $13,358 AUD
$9,383 USD
As of November 1, 2026
Save $22,271 AUD (63%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $54,951 AUD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 20ct lab-grown emerald diamond

This 20ct 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 LG818611254 or 818611254. Listed at 7 retailers as of October 31, 2026, with a 167% 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

20.00
Carat
F
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.9°
Pavilion angle41.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818611254
Dimensions18.85 × 13.03 × 7.94 mm
L/W Ratio1.45
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
18.85 mm13.03 mm20.00 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818611254
Side View
Table 73.0%Crown 40.9°Girdle: MediumPavilion 41.6°Culet: LargeDepth 60.9%

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: Nov 1
Current: $54,951 AUD|Low: $13,358 AUD|High: $60,413 AUD|Avg: $33,451 AUD|-0.1%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 2$13,358 AUD
Retailer 7$15,414 AUD
Retailer 4$21,395 AUD
Retailer 6$29,292 AUD
Retailer 5$35,078 AUD
Retailer 3$35,628 AUD
Brilliant Earth$54,951 AUD
Retailer 8$60,413 AUD

26 data points across 8 retailers

7 retailers$13,358 AUD to $35,628 AUD

B+
Cheapest Retailer
-
$13,358 AUD
$9,383 USD
Retailer 2
-
$15,414 AUD
$10,827 USD
View
Price last confirmed 85 days ago
B
Retailer 3
-
$21,395 AUD
€14,313 EUR
View
Retailer 4
-
$29,292 AUD
$20,576 USD
View
Price last confirmed 9 days ago
B
Retailer 5
-
$35,078 AUD
$24,640 USD
View
B
Retailer 6
-
$35,628 AUD
$25,027 USD
View
Most Expensive
Brilliant Earth
21687079A · Oct 31
$54,951 AUD
$38,600 USD
View
Price under review
6 more retailers have this diamond
Prices start from $13,358 AUDSave up to $22,271 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+
20.00ct Emerald
$13,358 AUD