CaratHunter
Plans
Heart|Lab Grown|IGI

0.51ct D SI1 Heart Lab Grown Diamond

ID • D/SI1 • IGI LG741558725

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG741558725

Diamond specifications and retailer prices

From HK$1,208 HKD
$154 USD
As of November 1, 2026
Save HK$5,747 HKD (83%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: HK$6,955 HKD at MOH London · As of November 1, 2026
View at MOH London

About this 0.51ct lab-grown heart diamond

This 0.51ct lab-grown heart sits in the half to three-quarter carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG741558725 or 741558725. Listed at 6 retailers as of November 1, 2026, with prices from HK$1,208 to HK$6,955, a HK$5,747 spread on the same certified stone. MOH London lists it at HK$6,955. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.51
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle39.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG741558725
Dimensions5.07 × 5.60 × 3.13 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
5.07 mm5.60 mm0.51 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG741558725
Side View
Table 57.0%Crown 34.6°Girdle: MED-STKPavilion 39.1°Culet: NoneDepth 55.9%

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 1
Current: HK$6,955 HKD|Low: HK$1,208 HKD|High: HK$8,639 HKD|Avg: HK$3,043 HKD|-18.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 2, 2026
Retailer 6HK$1,208 HKD
Retailer 3HK$1,788 HKD
Retailer 2HK$1,816 HKD
Retailer 4HK$2,286 HKD
Retailer 5HK$3,506 HKD
MOH LondonHK$6,955 HKD

41 data points across 6 retailers

6 retailersHK$1,208 HKD to HK$6,955 HKD

A
Cheapest Retailer
-
HK$1,208 HKD
$154 USD
A
Retailer 2
-
HK$1,788 HKD
€217 EUR
View
A
Retailer 3
-
HK$1,816 HKD
£182 GBP
View
B+
Retailer 4
-
HK$2,286 HKD
£229 GBP
View
B
Retailer 5
-
HK$3,506 HKD
$447 USD
View
Most Expensive
B
MOH London
LG741558725 · Nov 1
HK$6,955 HKD
£698 GBP
View
5 more retailers have this diamond
Prices start from HK$1,208 HKDSave up to HK$5,747 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
0.51ct Heart
HK$1,208 HKD