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Heart|Lab Grown|IGI

4.51ct E VS1 Heart Lab Grown Diamond

VG • E/VS1 • IGI LG774658447

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG774658447

Diamond specifications and retailer prices

From HK$5,131 HKD
$654 USD
As of October 30, 2026
Save HK$19,988 HKD (80%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: HK$25,119 HKD at MOH London · As of October 26, 2026
View at MOH London

About this 4.51ct lab-grown heart diamond

This 4.51ct lab-grown heart sits in the three to five carat band, graded E colour (colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG774658447 or 774658447. Listed at 18 retailers as of October 26, 2026, with prices from HK$5,131 to HK$25,119, a HK$19,988 spread on the same certified stone. MOH London lists it at HK$25,119. 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

4.51
Carat
E
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle39.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG774658447
Dimensions11.07 × 11.26 × 6.28 mm
L/W Ratio1.02
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.07 mm11.26 mm4.51 ctE / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG774658447
Side View
Table 66.0%Crown 34.1°Girdle: MED-STKPavilion 39.7°Culet: NoneDepth 55.8%

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$25,119 HKD|Low: HK$5,029 HKD|High: HK$25,946 HKD|Avg: HK$11,308 HKD|-2.9%
MOH London
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
October 30, 2026
Retailer 9HK$5,131 HKD
Retailer 11HK$5,152 HKD
Retailer 15HK$5,586 HKD
Retailer 17HK$5,743 HKD
Retailer 8HK$5,955 HKD
Retailer 10HK$6,080 HKD
Retailer 14HK$7,336 HKD
Retailer 18HK$8,536 HKD
Retailer 16HK$9,391 HKD
Retailer 12HK$9,498 HKD
Retailer 13HK$12,673 HKD
Retailer 2HK$12,759 HKD
Retailer 3HK$15,213 HKD
Retailer 4HK$15,299 HKD
Retailer 6HK$16,743 HKD
Retailer 7HK$20,313 HKD
Retailer 5HK$20,544 HKD
MOH LondonHK$25,119 HKD

36 data points across 18 retailers

18 retailersHK$5,131 HKD to HK$25,119 HKD

A
Cheapest Retailer
-
HK$5,131 HKD
$654 USD
A
Retailer 2
-
HK$5,152 HKD
£517 GBP
View
A
Retailer 3
-
HK$5,586 HKD
$712 USD
View
A
Retailer 4
-
HK$5,743 HKD
$732 USD
View
Final sale: no returns
A
Retailer 5
-
HK$5,955 HKD
$759 USD
View
Retailer 6
-
HK$6,080 HKD
$775 USD
View
Price last confirmed 14 days ago
A
Retailer 7
-
HK$7,336 HKD
$935 USD
View
B+
Retailer 8
-
HK$8,536 HKD
$1,088 USD
View
A
Retailer 9
-
HK$9,391 HKD
$1,197 USD
View
A
Retailer 10
-
HK$9,498 HKD
£953 GBP
View
A
Retailer 11
-
HK$12,673 HKD
ZAR 26,096 ZAR
View
A
Retailer 12
-
HK$12,759 HKD
A$2,502 AUD
View
B+
Retailer 13
-
HK$15,213 HKD
$1,939 USD
View
B+
Retailer 14
-
HK$15,299 HKD
$1,950 USD
View
B+
Retailer 15
-
HK$16,743 HKD
$2,134 USD
View
B+
Retailer 16
-
HK$20,313 HKD
$2,589 USD
View
B
Retailer 17
-
HK$20,544 HKD
$2,618 USD
View
Most Expensive
B
MOH London
LG774658447 · Oct 26
HK$25,119 HKD
£2,521 GBP
View
17 more retailers have this diamond
Prices start from HK$5,131 HKDSave up to HK$19,988 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
4.51ct Heart
HK$5,131 HKD