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 $6,381 USD
As of October 31, 2026
Save $19,362 USD (75%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $38,000 USD 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
Color
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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $10,466 USD|Low: $6,381 USD|High: $25,743 USD|Avg: $14,239 USD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 5$6,381 USD
Retailer 3$8,492 USD
Retailer 8$10,204 USD
Retailer 1$10,466 USD
Retailer 6$10,708 USD
Retailer 2$15,346 USD
Retailer 4$19,773 USD
Retailer 7$25,743 USD

10 data points across 8 retailers

10 retailers$6,381 USD to $25,743 USD

B+
Cheapest Retailer
-
$6,381 USD
Final sale: no returns
B+
Retailer 2
-
$7,846 USD
View
B+
Retailer 3
-
$8,492 USD
£6,687 GBP
View
B
Retailer 4
-
$10,204 USD
View
Retailer 5
-
$10,466 USD
A$16,101 AUD
View
B+
Retailer 6
-
$10,708 USD
€10,198 EUR
View
B
Retailer 7
-
$15,346 USD
View
B
Retailer 8
-
$19,773 USD
View
B
Retailer 9
-
$25,743 USD
View
Most Expensive
Brilliant Earth
22286334A · Oct 31
$38,000 USD
View
Price under review
9 more retailers have this diamond
Prices start from $6,381 USDSave up to $19,362 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.

B+
20.05ct Emerald
$6,381 USD