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Heart|Lab Grown|IGI

3.09ct D FL Heart Lab Grown Diamond

ID • D/FL • IGI LG840634518

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG840634518

Diamond specifications and retailer prices

From HK$17,597 HKD
As of November 4, 2026
Save HK$89,726 HKD (84%) vs most expensive(unlock to see where)
20 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 LG840634518 or 840634518. Listed at 20 retailers as of November 4, 2026, with prices from HK$17,597 to HK$107,322, a HK$89,726 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 angle32.8°
Pavilion angle38°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840634518
Dimensions9.26 × 10.16 × 5.66 mm
L/W Ratio1.10
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
9.26 mm10.16 mm3.09 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840634518
Side View
Table 56.0%Crown 32.8°Girdle: MED-THKPavilion 38°Culet: NoneDepth 55.7%

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$107,322 HKD|Low: HK$17,597 HKD|High: HK$107,322 HKD|Avg: HK$37,854 HKD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
November 5, 2026
Retailer 11HK$17,597 HKD
Retailer 18HK$19,150 HKD
Retailer 15HK$19,864 HKD
Retailer 7HK$20,413 HKD
Retailer 12HK$21,449 HKD
Retailer 19HK$21,692 HKD
Retailer 2HK$24,140 HKD
Retailer 3HK$26,313 HKD
Retailer 14HK$27,827 HKD
Retailer 16HK$28,062 HKD
Retailer 6HK$29,490 HKD
Retailer 17HK$31,883 HKD
Retailer 20HK$34,017 HKD
Retailer 5HK$47,550 HKD
Retailer 8HK$52,547 HKD
Retailer 13HK$55,230 HKD
Retailer 10HK$69,304 HKD
Retailer 4HK$71,321 HKD
Retailer 9HK$75,926 HKD
Brilliant EarthHK$107,322 HKD

18 data points across 20 retailers

20 retailersHK$17,597 HKD to HK$107,322 HKD

A
Cheapest Retailer
-
HK$17,597 HKD
A
Retailer 2
-
HK$19,150 HKD
View
A
Retailer 3
-
HK$19,864 HKD
View
Final sale: no returns
A
Retailer 4
-
HK$20,413 HKD
View
A
Retailer 5
-
HK$21,449 HKD
View
A
Retailer 6
-
HK$21,692 HKD
View
A
Retailer 7
-
HK$24,140 HKD
View
A
Retailer 8
-
HK$26,313 HKD
View
A
Retailer 9
-
HK$27,827 HKD
View
A
Retailer 10
-
HK$28,062 HKD
View
A
Retailer 11
-
HK$29,490 HKD
View
B+
Retailer 12
-
HK$31,883 HKD
View
B+
Retailer 13
-
HK$34,017 HKD
View
B+
Retailer 14
-
HK$47,550 HKD
View
B+
Retailer 15
-
HK$52,547 HKD
View
B+
Retailer 16
-
HK$55,230 HKD
View
B+
Retailer 17
-
HK$69,304 HKD
View
B+
Retailer 18
-
HK$71,321 HKD
View
B
Retailer 19
-
HK$75,926 HKD
View
Most Expensive
B
Brilliant Earth
22192649A · Nov 5
HK$107,322 HKD
$13,680 USD
View
19 more retailers have this diamond
Prices start from HK$17,597 HKDSave up to HK$89,726 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$17,597 HKD