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Emerald|Lab Grown|IGI

20.05ct F VS1 Emerald Lab Grown Diamond

ID • F/VS1 • IGI LG817674045

Shape and cutting style on the report: Emerald cut

Certificate IGI LG817674045

Diamond specifications and retailer prices

From HK$45,939 HKD
$5,855 USD
As of November 1, 2026
Save HK$154,733 HKD (77%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: HK$298,152 HKD 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 LG817674045 or 817674045. Listed at 10 retailers as of November 1, 2026, with a 337% 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 angle30.2°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG817674045
Dimensions18.84 × 12.52 × 8.23 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
18.84 mm12.52 mm20.05 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG817674045
Side View
Table 63.0%Crown 30.2°Girdle: Slightly ThickPavilion 40.7°Culet: LargeDepth 65.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: HK$298,152 HKD|Low: HK$45,939 HKD|High: HK$307,410 HKD|Avg: HK$125,804 HKD|-3.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 8HK$45,939 HKD
Retailer 9HK$47,744 HKD
Retailer 2HK$57,779 HKD
Retailer 3HK$60,963 HKD
Retailer 5HK$73,526 HKD
Retailer 6HK$85,902 HKD
Retailer 4HK$90,535 HKD
Retailer 10HK$169,909 HKD
Retailer 7HK$200,672 HKD
Brilliant EarthHK$298,152 HKD

44 data points across 10 retailers

10 retailersHK$45,939 HKD to HK$200,672 HKD

A
Cheapest Retailer
-
HK$45,939 HKD
$5,855 USD
Final sale: no returns
B+
Retailer 2
-
HK$47,744 HKD
$6,085 USD
View
B+
Retailer 3
-
HK$57,779 HKD
$7,364 USD
View
B+
Retailer 4
-
HK$60,963 HKD
£6,118 GBP
View
B+
Retailer 5
-
HK$73,526 HKD
$9,371 USD
View
B+
Retailer 6
-
HK$85,902 HKD
€10,427 EUR
View
B
Retailer 7
-
HK$90,535 HKD
A$17,752 AUD
View
B
Retailer 8
-
HK$169,909 HKD
$21,655 USD
View
B
Retailer 9
-
HK$200,672 HKD
$25,576 USD
View
Most Expensive
Brilliant Earth
20861507A · Oct 31
HK$298,152 HKD
$38,000 USD
View
Price under review
9 more retailers have this diamond
Prices start from HK$45,939 HKDSave up to HK$154,733 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.

A
20.05ct Emerald
HK$45,939 HKD