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Heart|Lab Grown|IGI

4.55ct E VS1 Heart Lab Grown Diamond

EX • E/VS1 • IGI LG821603031

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG821603031

Diamond specifications and retailer prices

From HK$5,288 HKD
$674 USD
As of October 30, 2026
Save HK$37,000 HKD (87%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: HK$42,288 HKD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 4.55ct lab-grown heart diamond

This 4.55ct lab-grown heart sits in the three to five carat band, graded E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG821603031 or 821603031. Listed at 20 retailers as of October 30, 2026, with prices from HK$5,288 to HK$42,288, a HK$37,000 spread on the same certified stone. Brilliant Earth lists it at HK$42,288. 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

4.55
Carat
E
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.9°
Pavilion angle38.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG821603031
Dimensions10.71 × 11.10 × 6.64 mm
L/W Ratio1.04
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.71 mm11.10 mm4.55 ctE / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG821603031
Side View
Table 60.0%Crown 37.9°Girdle: MED-STKPavilion 38.1°Culet: NoneDepth 59.8%

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: Oct 30
Current: HK$42,288 HKD|Low: HK$5,123 HKD|High: HK$43,544 HKD|Avg: HK$14,623 HKD|-2.9%
Brilliant Earth
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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
October 30, 2026
Retailer 8HK$5,288 HKD
Retailer 18HK$5,751 HKD
Retailer 6HK$5,916 HKD
Retailer 11HK$6,127 HKD
Retailer 20HK$6,127 HKD
Retailer 15HK$7,532 HKD
Retailer 12HK$7,854 HKD
Retailer 5HK$8,983 HKD
Retailer 13HK$9,788 HKD
Retailer 14HK$13,047 HKD
Retailer 2HK$13,137 HKD
Retailer 17HK$13,424 HKD
Retailer 19HK$15,582 HKD
Retailer 10HK$17,237 HKD
Retailer 3HK$20,234 HKD
Retailer 7HK$20,909 HKD
Retailer 4HK$21,144 HKD
Retailer 9HK$21,811 HKD
Retailer 16HK$25,857 HKD
Brilliant EarthHK$42,288 HKD

43 data points across 20 retailers

20 retailersHK$5,288 HKD to HK$42,288 HKD

A
Cheapest Retailer
-
HK$5,288 HKD
$674 USD
A
Retailer 2
-
HK$5,751 HKD
$733 USD
View
A
Retailer 3
-
HK$5,916 HKD
$754 USD
View
Final sale: no returns
Retailer 4
-
HK$6,127 HKD
$781 USD
View
Price last confirmed 14 days ago
A
Retailer 5
-
HK$6,127 HKD
$781 USD
View
A
Retailer 6
-
HK$7,532 HKD
$960 USD
View
B+
Retailer 7
-
HK$7,854 HKD
$1,001 USD
View
A
Retailer 8
-
HK$8,983 HKD
$1,145 USD
View
A
Retailer 9
-
HK$9,788 HKD
£982 GBP
View
A
Retailer 10
-
HK$13,047 HKD
ZAR 26,865 ZAR
View
A
Retailer 11
-
HK$13,137 HKD
A$2,576 AUD
View
A
Retailer 12
-
HK$13,424 HKD
$1,711 USD
View
B+
Retailer 13
-
HK$15,582 HKD
$1,986 USD
View
B+
Retailer 14
-
HK$17,237 HKD
$2,197 USD
View
B+
Retailer 15
-
HK$20,234 HKD
$2,579 USD
View
B+
Retailer 16
-
HK$20,909 HKD
$2,665 USD
View
B+
Retailer 17
-
HK$21,144 HKD
$2,695 USD
View
B+
Retailer 18
-
HK$21,811 HKD
$2,780 USD
View
B
Retailer 19
-
HK$25,857 HKD
£2,595 GBP
View
Most Expensive
B
Brilliant Earth
21127833A · Oct 30
HK$42,288 HKD
$5,390 USD
View
19 more retailers have this diamond
Prices start from HK$5,288 HKDSave up to HK$37,000 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
4.55ct Heart
HK$5,288 HKD