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Heart|Lab Grown|IGI

1.51ct D SI1 Heart Lab Grown Diamond

EX • D/SI1 • IGI LG650418911

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG650418911

Diamond specifications and retailer prices

From HK$1,685 HKD
As of November 6, 2026
Save HK$8,033 HKD (83%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: HK$9,718 HKD at Brilliant Earth · As of November 6, 2026
View at Brilliant Earth

About this 1.51ct lab-grown heart diamond

This 1.51ct lab-grown heart sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG650418911 or 650418911. Listed at 14 retailers as of November 6, 2026, with prices from HK$1,685 to HK$9,718, a HK$8,033 spread on the same certified stone. Brilliant Earth lists it at HK$9,718. 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

1.51
Carat
D
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.1°
Pavilion angle39°
OriginLab Grown
Grading LabIGI
CertificateIGI LG650418911
Dimensions6.97 × 8.10 × 4.63 mm
L/W Ratio1.16
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.97 mm8.10 mm1.51 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG650418911
Side View
Table 56.0%Crown 33.1°Girdle: MED-STKPavilion 39°Culet: NoneDepth 57.2%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: HK$9,718 HKD|Low: HK$1,669 HKD|High: HK$15,675 HKD|Avg: HK$4,994 HKD|-38.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 4HK$1,685 HKD
Retailer 10HK$1,889 HKD
Retailer 12HK$1,952 HKD
Retailer 7HK$2,093 HKD
Retailer 11HK$2,821 HKD
Retailer 2HK$3,832 HKD
Retailer 3HK$3,895 HKD
Retailer 8HK$4,083 HKD
Retailer 9HK$6,717 HKD
Retailer 5HK$6,740 HKD
Retailer 6HK$8,370 HKD
Brilliant EarthHK$9,718 HKD

45 data points across 12 retailers

14 retailersHK$1,685 HKD to HK$9,718 HKD

A
Cheapest Retailer
-
HK$1,685 HKD
A
Retailer 2
-
HK$1,889 HKD
View
Final sale: no returns
A
Retailer 3
-
HK$1,952 HKD
View
A
Retailer 4
-
HK$2,093 HKD
View
Retailer 5
-
HK$2,155 HKD
View
Price last confirmed 12 days ago
B+
Retailer 6
-
HK$2,821 HKD
View
B+
Retailer 7
-
HK$3,832 HKD
View
B+
Retailer 8
-
HK$3,895 HKD
View
B+
Retailer 9
-
HK$4,083 HKD
View
B+
Retailer 10
-
HK$5,478 HKD
View
B
Retailer 11
-
HK$6,717 HKD
View
B
Retailer 12
-
HK$6,740 HKD
View
B
Retailer 13
-
HK$8,370 HKD
View
Most Expensive
B
Brilliant Earth
12166023A · Nov 6
HK$9,718 HKD
$1,240 USD
View
13 more retailers have this diamond
Prices start from HK$1,685 HKDSave up to HK$8,033 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
1.51ct Heart
HK$1,685 HKD