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Emerald|Lab Grown|IGI

21.05ct F VS1 Emerald Lab Grown Diamond

ID • F/VS1 • IGI LG781605153

Shape and cutting style on the report: Emerald cut

Certificate IGI LG781605153

Diamond specifications and retailer prices

From HK$107,648 HKD
$13,720 USD
As of November 2, 2026
Save HK$89,187 HKD (45%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: HK$908,382 HKD at Diamonds Direct · As of November 1, 2026
View at Diamonds Direct

About this 21.05ct lab-grown emerald diamond

This 21.05ct 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 LG781605153 or 781605153. Listed at 15 retailers as of November 2, 2026, with a 83% 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

21.05
Carat
F
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.6°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG781605153
Dimensions18.53 × 13.17 × 8.49 mm
L/W Ratio1.41
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
18.53 mm13.17 mm21.05 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG781605153
Side View
Table 67.0%Crown 33.6°Girdle: Slightly ThickPavilion 40.3°Culet: LargeDepth 64.5%

Caratlytics Score

How it works →
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$908,382 HKD|Low: HK$85,052 HKD|High: HK$908,382 HKD|Avg: HK$224,819 HKD|+22.2%
Diamonds Direct
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 2, 2026
Retailer 8HK$85,052 HKD
Retailer 9HK$107,648 HKD
Retailer 3HK$110,230 HKD
Retailer 4HK$111,721 HKD
Retailer 5HK$120,555 HKD
Retailer 7HK$124,871 HKD
Retailer 10HK$124,871 HKD
Retailer 13HK$124,871 HKD
Retailer 11HK$129,170 HKD
Retailer 2HK$156,024 HKD
Retailer 6HK$340,364 HKD
Retailer 12HK$349,308 HKD
Diamonds DirectHK$908,382 HKD

43 data points across 13 retailers

15 retailersHK$107,648 HKD to HK$196,835 HKD

Retailer 1
-
HK$85,052 HKD
$10,840 USD
Price last confirmed 15 days ago
B
Retailer 2
-
HK$107,648 HKD
$13,720 USD
View
B
Retailer 3
-
HK$110,230 HKD
$14,049 USD
View
B
Retailer 4
-
HK$111,721 HKD
$14,239 USD
View
B
Retailer 5
-
HK$120,555 HKD
$15,365 USD
View
Final sale: no returns
B
Retailer 6
-
HK$124,871 HKD
$15,915 USD
View
B
Retailer 7
-
HK$124,871 HKD
$15,915 USD
View
Retailer 8
-
HK$124,871 HKD
$15,915 USD
View
Price last confirmed 20 days ago
B
Retailer 9
-
HK$129,170 HKD
$16,463 USD
View
B
Retailer 10
-
HK$156,024 HKD
£15,658 GBP
View
B
Retailer 11
-
HK$196,835 HKD
$25,087 USD
View
Retailer 12
-
HK$340,364 HKD
$43,380 USD
View
Price under review
Retailer 13
-
HK$349,308 HKD
$44,520 USD
View
Price under review
Most Expensive
Diamonds Direct
819522 · Nov 1
HK$908,382 HKD
$115,775 USD
View
Price under review
13 more retailers have this diamond
Prices start from HK$107,648 HKDSave up to HK$89,187 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
21.05ct Emerald
HK$107,648 HKD