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Heart|Lab Grown|IGI

4.54ct E VS1 Heart Lab Grown Diamond

EX • E/VS1 • IGI LG775639558

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG775639558

Diamond specifications and retailer prices

From HK$9,478 HKD
$1,208 USD
As of October 30, 2026
Save HK$16,638 HKD (64%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: HK$28,161 HKD at Novita Diamonds · As of October 5, 2026
View at Novita Diamonds

About this 4.54ct lab-grown heart diamond

This 4.54ct 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 LG775639558 or 775639558. Listed at 8 retailers as of October 29, 2026, with a 176% 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

4.54
Carat
E
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.7°
Pavilion angle36.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG775639558
Dimensions10.34 × 11.37 × 6.51 mm
L/W Ratio1.10
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.34 mm11.37 mm4.54 ctE / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG775639558
Side View
Table 58.0%Crown 37.7°Girdle: MED-STKPavilion 36.9°Culet: NoneDepth 57.3%

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$28,161 HKD|Low: HK$9,478 HKD|High: HK$28,161 HKD|Avg: HK$16,177 HKD|+0.6%
Novita Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 30, 2026
Retailer 5HK$9,478 HKD
Retailer 6HK$10,027 HKD
Retailer 3HK$10,388 HKD
Retailer 2HK$10,591 HKD
Retailer 8HK$15,676 HKD
Retailer 7HK$22,806 HKD
Retailer 4HK$26,116 HKD
Novita DiamondsHK$28,161 HKD

37 data points across 8 retailers

8 retailersHK$9,478 HKD to HK$26,116 HKD

B+
Cheapest Retailer
-
HK$9,478 HKD
$1,208 USD
A
Retailer 2
-
HK$10,027 HKD
$1,278 USD
View
A
Retailer 3
-
HK$10,388 HKD
€1,261 EUR
View
A
Retailer 4
-
HK$10,591 HKD
£1,063 GBP
View
B+
Retailer 5
-
HK$15,676 HKD
$1,998 USD
View
B+
Retailer 6
-
HK$22,806 HKD
$2,907 USD
View
B
Retailer 7
-
HK$26,116 HKD
£2,621 GBP
View
Most Expensive
Novita Diamonds
cert_775639558 · Oct 5
HK$28,161 HKD
A$5,522 AUD
View
Price last confirmed 25 days ago
7 more retailers have this diamond
Prices start from HK$9,478 HKDSave up to HK$16,638 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
4.54ct Heart
HK$9,478 HKD