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Emerald|Lab Grown|IGI

20.57ct F VS1 Emerald Lab Grown Diamond

VG • F/VS1 • IGI LG826662775

Shape and cutting style on the report: Emerald cut

Certificate IGI LG826662775

Diamond specifications and retailer prices

From HK$97,954 HKD
$12,485 USD
As of November 2, 2026
Save HK$108,549 HKD (53%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: HK$318,261 HKD at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 20.57ct lab-grown emerald diamond

This 20.57ct lab-grown emerald sits in the over five carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG826662775 or 826662775. Listed at 9 retailers as of November 1, 2026, with a 111% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

20.57
Carat
F
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.9°
Pavilion angle39.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG826662775
Dimensions19.48 × 12.92 × 8.13 mm
L/W Ratio1.51
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
19.48 mm12.92 mm20.57 ctF / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG826662775
Side View
Table 66.0%Crown 33.9°Girdle: MediumPavilion 39.6°Culet: LargeDepth 62.9%

Caratlytics Score

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B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: HK$128,102 HKD|Low: HK$69,121 HKD|High: HK$462,112 HKD|Avg: HK$169,700 HKD|-1.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Taylor and Hart
November 2, 2026
Retailer 7HK$69,121 HKD
Retailer 4HK$97,954 HKD
Retailer 6HK$101,060 HKD
Retailer 5HK$106,945 HKD
Retailer 1HK$128,102 HKD
Retailer 8HK$174,794 HKD
Retailer 2HK$206,502 HKD
Taylor and HartHK$318,261 HKD
Retailer 3HK$383,262 HKD

29 data points across 9 retailers

9 retailersHK$97,954 HKD to HK$206,502 HKD

Retailer 1
-
HK$69,121 HKD
$8,810 USD
Price last confirmed 12 days ago
B
Retailer 2
-
HK$97,954 HKD
$12,485 USD
View
B
Retailer 3
-
HK$101,060 HKD
$12,881 USD
View
B
Retailer 4
-
HK$106,945 HKD
$13,631 USD
View
B
Retailer 5
-
HK$128,102 HKD
£12,856 GBP
View
B
Retailer 6
-
HK$174,794 HKD
$22,279 USD
View
B
Retailer 7
-
HK$206,502 HKD
A$40,493 AUD
View
Most Expensive
Taylor and Hart
XKAONNY · Oct 31
HK$318,261 HKD
$40,565 USD
View
Price under review
7 more retailers have this diamond
Prices start from HK$97,954 HKDSave up to HK$108,549 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
20.57ct Emerald
HK$97,954 HKD