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Heart|Lab Grown|IGI

1.51ct D FL Heart Lab Grown Diamond

ID • D/FL • IGI LG840623998

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG840623998

Diamond specifications and retailer prices

From HK$4,911 HKD
As of November 4, 2026
Save HK$22,000 HKD (82%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: HK$26,911 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 LG840623998 or 840623998. Listed at 9 retailers as of November 4, 2026, with prices from HK$4,911 to HK$26,911, a HK$22,000 spread on the same certified stone. Brilliant Earth lists it at HK$26,911. 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 angle37.8°
Pavilion angle37.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840623998
Dimensions7.06 × 7.88 × 4.59 mm
L/W Ratio1.12
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
7.06 mm7.88 mm1.51 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840623998
Side View
Table 58.0%Crown 37.8°Girdle: MED-STKPavilion 37.5°Culet: NoneDepth 58.2%

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$26,911 HKD|Low: HK$4,911 HKD|High: HK$26,911 HKD|Avg: HK$16,984 HKD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 5, 2026
Retailer 5HK$4,911 HKD
Retailer 8HK$9,321 HKD
Retailer 4HK$9,446 HKD
Retailer 7HK$18,681 HKD
Retailer 6HK$19,654 HKD
Retailer 9HK$20,438 HKD
Retailer 2HK$21,552 HKD
Retailer 3HK$23,922 HKD
Brilliant EarthHK$26,911 HKD

2 data points across 9 retailers

9 retailersHK$4,911 HKD to HK$26,911 HKD

A
Cheapest Retailer
-
HK$4,911 HKD
B+
Retailer 2
-
HK$9,321 HKD
View
B+
Retailer 3
-
HK$9,446 HKD
View
B
Retailer 4
-
HK$18,681 HKD
View
B
Retailer 5
-
HK$19,654 HKD
View
B
Retailer 6
-
HK$20,438 HKD
View
B
Retailer 7
-
HK$21,552 HKD
View
B
Retailer 8
-
HK$23,922 HKD
View
Most Expensive
B
Brilliant Earth
22503510A · Nov 4
HK$26,911 HKD
$3,430 USD
View
8 more retailers have this diamond
Prices start from HK$4,911 HKDSave up to HK$22,000 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$4,911 HKD