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Heart|Lab Grown|IGI

20.51ct G VS1 Heart Lab Grown Diamond

VG • G/VS1 • IGI LG720595533

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG720595533

Diamond specifications and retailer prices

From HK$92,693 HKD
$11,814 USD
As of November 2, 2026
Save HK$221,230 HKD (70%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: HK$313,923 HKD at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 20.51ct lab-grown heart diamond

This 20.51ct lab-grown heart sits in the over five carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG720595533 or 720595533. Listed at 14 retailers as of October 31, 2026, with prices from HK$92,693 to HK$313,923, a HK$221,230 spread on the same certified stone. Taylor and Hart lists it at HK$313,923. 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

20.51
Carat
G
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.8°
Pavilion angle38.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG720595533
Dimensions16.59 × 17.88 × 10.68 mm
L/W Ratio1.08
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
16.59 mm17.88 mm20.51 ctG / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG720595533
Side View
Table 66.0%Crown 41.8°Girdle: VTK-ETKPavilion 38.5°Culet: NoneDepth 59.7%

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: Nov 2
Current: HK$202,767 HKD|Low: HK$88,989 HKD|High: HK$313,923 HKD|Avg: HK$138,532 HKD|-0.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Taylor and Hart
November 1, 2026
Retailer 10HK$92,693 HKD
Retailer 14HK$96,404 HKD
Retailer 3HK$97,981 HKD
Retailer 13HK$100,774 HKD
Retailer 4HK$103,810 HKD
Retailer 7HK$105,999 HKD
Retailer 2HK$107,529 HKD
Retailer 11HK$107,529 HKD
Retailer 9HK$114,089 HKD
Retailer 12HK$114,669 HKD
Retailer 6HK$124,515 HKD
Retailer 8HK$129,651 HKD
Retailer 1HK$202,767 HKD
Retailer 5HK$208,437 HKD
Taylor and HartHK$313,923 HKD

16 data points across 15 retailers

14 retailersHK$92,693 HKD to HK$313,923 HKD

B+
Cheapest Retailer
-
HK$92,693 HKD
$11,814 USD
B+
Retailer 2
-
HK$96,404 HKD
$12,287 USD
View
B+
Retailer 3
-
HK$97,981 HKD
$12,488 USD
View
B+
Retailer 4
-
HK$100,774 HKD
$12,844 USD
View
B+
Retailer 5
-
HK$103,810 HKD
$13,231 USD
View
Final sale: no returns
B
Retailer 6
-
HK$105,999 HKD
$13,510 USD
View
B+
Retailer 7
-
HK$107,529 HKD
$13,705 USD
View
Retailer 8
-
HK$107,529 HKD
$13,705 USD
View
Price last confirmed 21 days ago
B
Retailer 9
-
HK$114,089 HKD
$14,541 USD
View
B
Retailer 10
-
HK$114,669 HKD
$14,615 USD
View
Retailer 11
-
HK$129,651 HKD
£13,011 GBP
View
Price last confirmed 14 days ago
B
Retailer 12
-
HK$202,767 HKD
A$39,759 AUD
View
B
Retailer 13
-
HK$208,437 HKD
$26,566 USD
View
Most Expensive
B
Taylor and Hart
GW5JPQB · Oct 31
HK$313,923 HKD
$40,011 USD
View
13 more retailers have this diamond
Prices start from HK$92,693 HKDSave up to HK$221,230 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+
20.51ct Heart
HK$92,693 HKD