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Heart|Lab Grown|IGI

1.51ct D FL Heart Lab Grown Diamond

ID • D/FL • IGI LG846663660

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG846663660

Diamond specifications and retailer prices

From HK$5,476 HKD
As of November 4, 2026
Save HK$24,652 HKD (82%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: HK$30,128 HKD at Brilliant Earth · As of November 4, 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 FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG846663660 or 846663660. Listed at 11 retailers as of November 4, 2026, with prices from HK$5,476 to HK$30,128, a HK$24,652 spread on the same certified stone. Brilliant Earth lists it at HK$30,128. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.1°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG846663660
Dimensions7.73 × 6.86 × 4.78 mm
L/W Ratio1.13
Girdle conditionFaceted
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
7.73 mm6.86 mm1.51 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG846663660
Side View
Table 57.0%Crown 36.1°Girdle: STK-THKPavilion 39.5°Culet: NoneDepth 61.8%

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: Nov 4
Current: HK$30,128 HKD|Low: HK$5,476 HKD|High: HK$37,974 HKD|Avg: HK$15,941 HKD|-20.7%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 5, 2026
Retailer 7HK$5,476 HKD
Retailer 4HK$6,394 HKD
Retailer 5HK$6,512 HKD
Retailer 10HK$9,156 HKD
Retailer 3HK$9,274 HKD
Retailer 8HK$15,040 HKD
Retailer 6HK$16,939 HKD
Retailer 9HK$22,494 HKD
Retailer 2HK$23,812 HKD
Retailer 11HK$25,020 HKD
Brilliant EarthHK$30,128 HKD

11 data points across 11 retailers

11 retailersHK$5,476 HKD to HK$30,128 HKD

A
Cheapest Retailer
-
HK$5,476 HKD
A
Retailer 2
-
HK$6,394 HKD
View
A
Retailer 3
-
HK$6,512 HKD
View
B+
Retailer 4
-
HK$9,156 HKD
View
B+
Retailer 5
-
HK$9,274 HKD
View
B+
Retailer 6
-
HK$15,040 HKD
View
B
Retailer 7
-
HK$16,939 HKD
View
B
Retailer 8
-
HK$22,494 HKD
View
B
Retailer 9
-
HK$23,812 HKD
View
B
Retailer 10
-
HK$25,020 HKD
View
Most Expensive
B
Brilliant Earth
22319408A · Nov 4
HK$30,128 HKD
$3,840 USD
View
10 more retailers have this diamond
Prices start from HK$5,476 HKDSave up to HK$24,652 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$5,476 HKD