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Emerald|Lab Grown|IGI

20.83ct F VS1 Emerald Lab Grown Diamond

ID • F/VS1 • IGI LG790633013

Shape and cutting style on the report: Emerald cut

Certificate IGI LG790633013

Diamond specifications and retailer prices

From HK$73,404 HKD
$9,356 USD
As of October 31, 2026
Save HK$160,066 HKD (69%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: HK$309,748 HKD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 20.83ct lab-grown emerald diamond

This 20.83ct 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 LG790633013 or 790633013. Listed at 10 retailers as of October 31, 2026, with a 218% 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

20.83
Carat
F
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.2°
Pavilion angle38.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG790633013
Dimensions18.85 × 12.59 × 8.40 mm
L/W Ratio1.50
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
18.85 mm12.59 mm20.83 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG790633013
Side View
Table 64.0%Crown 39.2°Girdle: MED-STKPavilion 38.5°Culet: LargeDepth 66.7%

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: HK$309,748 HKD|Low: HK$69,631 HKD|High: HK$319,320 HKD|Avg: HK$153,225 HKD|-3.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 7HK$69,631 HKD
Retailer 4HK$73,404 HKD
Retailer 5HK$73,411 HKD
Retailer 10HK$74,989 HKD
Retailer 2HK$87,827 HKD
Retailer 3HK$139,346 HKD
Retailer 9HK$196,933 HKD
Retailer 6HK$233,471 HKD
Retailer 8HK$293,555 HKD
Brilliant EarthHK$309,748 HKD

40 data points across 10 retailers

10 retailersHK$73,404 HKD to HK$233,471 HKD

Retailer 1
-
HK$69,631 HKD
$8,875 USD
Price last confirmed 12 days ago
B+
Retailer 2
-
HK$73,404 HKD
$9,356 USD
View
B+
Retailer 3
-
HK$73,411 HKD
View
B+
Retailer 4
-
HK$74,989 HKD
$9,558 USD
View
B+
Retailer 5
-
HK$87,827 HKD
£8,814 GBP
View
B
Retailer 6
-
HK$139,346 HKD
€16,915 EUR
View
B
Retailer 7
-
HK$196,933 HKD
$25,101 USD
View
B
Retailer 8
-
HK$233,471 HKD
$29,758 USD
View
Retailer 9
-
HK$293,555 HKD
$37,416 USD
View
Price under review
Most Expensive
Brilliant Earth
20388070A · Oct 31
HK$309,748 HKD
$39,480 USD
View
Price under review
9 more retailers have this diamond
Prices start from HK$73,404 HKDSave up to HK$160,066 HKD

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+
20.83ct Emerald
HK$73,404 HKD