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Heart|Lab Grown|IGI

21.10ct G VS1 Heart Lab Grown Diamond

ID • G/VS1 • IGI LG782617670

Shape and cutting style on the report: Heart modified brilliant

Certificate IGI LG782617670

Diamond specifications and retailer prices

From HK$86,157 HKD
$10,981 USD
As of November 2, 2026
Save HK$212,496 HKD (71%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: HK$298,652 HKD at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 21.1ct lab-grown heart diamond

This 21.1ct lab-grown heart sits in the over five carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG782617670 or 782617670. Listed at 14 retailers as of October 31, 2026, with prices from HK$86,157 to HK$298,652, a HK$212,496 spread on the same certified stone. Taylor and Hart lists it at HK$298,652. 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

21.10
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.2°
Pavilion angle30.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG782617670
Dimensions19.21 × 16.45 × 9.02 mm
L/W Ratio1.17
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
19.21 mm16.45 mm21.10 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG782617670
Side View
Table 70.0%Crown 33.2°Girdle: THK-VTKPavilion 30.4°Culet: NoneDepth 47.0%

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 2
Current: HK$188,717 HKD|Low: HK$86,157 HKD|High: HK$336,428 HKD|Avg: HK$147,751 HKD|-23.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Taylor and Hart
November 1, 2026
Retailer 11HK$86,157 HKD
Retailer 8HK$89,609 HKD
Retailer 2HK$92,426 HKD
Retailer 12HK$93,666 HKD
Retailer 4HK$96,498 HKD
Retailer 10HK$99,942 HKD
Retailer 6HK$99,958 HKD
Retailer 3HK$106,627 HKD
Retailer 7HK$107,702 HKD
Retailer 5HK$118,046 HKD
Retailer 1HK$188,717 HKD
Retailer 9HK$216,542 HKD
Taylor and HartHK$298,652 HKD

19 data points across 13 retailers

14 retailersHK$86,157 HKD to HK$298,652 HKD

A
Cheapest Retailer
-
HK$86,157 HKD
$10,981 USD
B+
Retailer 2
-
HK$89,609 HKD
$11,421 USD
View
B+
Retailer 3
-
HK$92,426 HKD
$11,780 USD
View
B+
Retailer 4
-
HK$93,666 HKD
$11,938 USD
View
B+
Retailer 5
-
HK$96,498 HKD
$12,299 USD
View
Final sale: no returns
B+
Retailer 6
-
HK$99,942 HKD
$12,738 USD
View
Retailer 7
-
HK$99,942 HKD
$12,738 USD
View
Price last confirmed 21 days ago
B+
Retailer 8
-
HK$99,958 HKD
$12,740 USD
View
B+
Retailer 9
-
HK$106,627 HKD
$13,590 USD
View
B+
Retailer 10
-
HK$107,702 HKD
$13,727 USD
View
B+
Retailer 11
-
HK$118,046 HKD
£11,847 GBP
View
B
Retailer 12
-
HK$188,717 HKD
A$37,004 AUD
View
B
Retailer 13
-
HK$216,542 HKD
$27,599 USD
View
Most Expensive
B
Taylor and Hart
632FEXV · Oct 31
HK$298,652 HKD
$38,064 USD
View
13 more retailers have this diamond
Prices start from HK$86,157 HKDSave up to HK$212,496 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
21.10ct Heart
HK$86,157 HKD