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Heart|Lab Grown|IGI

3.09ct D FL Heart Lab Grown Diamond

ID • D/FL • IGI LG840619858

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG840619858

Diamond specifications and retailer prices

From HK$21,755 HKD
As of November 5, 2026
Save HK$85,568 HKD (80%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: HK$107,322 HKD at Brilliant Earth · As of November 5, 2026
View at Brilliant Earth

About this 3.09ct lab-grown heart diamond

This 3.09ct lab-grown heart sits in the three to five carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG840619858 or 840619858. Listed at 9 retailers as of November 5, 2026, with prices from HK$21,755 to HK$107,322, a HK$85,568 spread on the same certified stone. Brilliant Earth lists it at HK$107,322. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

3.09
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle38.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840619858
Dimensions9.17 × 10.04 × 5.78 mm
L/W Ratio1.09
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
9.17 mm10.04 mm3.09 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840619858
Side View
Table 58.0%Crown 35°Girdle: MED-STKPavilion 38.1°Culet: NoneDepth 57.6%

Caratlytics Score

How it works →
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 5
Current: HK$107,322 HKD|Low: HK$21,755 HKD|High: HK$107,322 HKD|Avg: HK$51,565 HKD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 5, 2026
Retailer 4HK$21,755 HKD
Retailer 5HK$22,539 HKD
Retailer 2HK$26,650 HKD
Retailer 3HK$26,909 HKD
Retailer 7HK$30,126 HKD
Retailer 8HK$57,231 HKD
Retailer 6HK$60,173 HKD
Retailer 9HK$78,640 HKD
Brilliant EarthHK$107,322 HKD

2 data points across 9 retailers

9 retailersHK$21,755 HKD to HK$107,322 HKD

A
Cheapest Retailer
-
HK$21,755 HKD
Final sale: no returns
A
Retailer 2
-
HK$22,539 HKD
View
Retailer 3
-
HK$26,650 HKD
View
A
Retailer 4
-
HK$26,909 HKD
View
B+
Retailer 5
-
HK$30,126 HKD
View
B+
Retailer 6
-
HK$57,231 HKD
View
B
Retailer 7
-
HK$60,173 HKD
View
B
Retailer 8
-
HK$78,640 HKD
View
Most Expensive
B
Brilliant Earth
22512186A · Nov 5
HK$107,322 HKD
$13,680 USD
View
8 more retailers have this diamond
Prices start from HK$21,755 HKDSave up to HK$85,568 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
3.09ct Heart
HK$21,755 HKD