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Heart|Lab Grown|IGI

3.49ct D FL Heart Lab Grown Diamond

EX • D/FL • IGI LG821640937

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG821640937

Diamond specifications and retailer prices

From HK$18,594 HKD
$2,370 USD
As of October 30, 2026
Save HK$109,604 HKD (85%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: HK$128,199 HKD at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 3.49ct lab-grown heart diamond

This 3.49ct 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 LG821640937 or 821640937. Listed at 11 retailers as of October 29, 2026, with prices from HK$18,594 to HK$128,199, a HK$109,604 spread on the same certified stone. Do Amore Diamonds lists it at HK$128,199. 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

3.49
Carat
D
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37°
Pavilion angle39.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG821640937
Dimensions9.59 × 10.15 × 6.14 mm
L/W Ratio1.06
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
9.59 mm10.15 mm3.49 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG821640937
Side View
Table 60.0%Crown 37°Girdle: THK-VTKPavilion 39.7°Culet: NoneDepth 60.5%

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: Oct 30
Current: HK$128,199 HKD|Low: HK$18,594 HKD|High: HK$155,659 HKD|Avg: HK$57,831 HKD|-17.6%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 30, 2026
Retailer 2HK$18,594 HKD
Retailer 11HK$20,273 HKD
Retailer 9HK$22,909 HKD
Retailer 12HK$25,279 HKD
Retailer 8HK$32,403 HKD
Retailer 10HK$32,787 HKD
Retailer 7HK$33,713 HKD
Retailer 5HK$40,366 HKD
Retailer 6HK$64,208 HKD
Retailer 4HK$117,701 HKD
Retailer 3HK$121,295 HKD
Do Amore DiamondsHK$128,199 HKD

26 data points across 12 retailers

11 retailersHK$18,594 HKD to HK$128,199 HKD

A
Cheapest Retailer
-
HK$18,594 HKD
$2,370 USD
A
Retailer 2
-
HK$20,273 HKD
$2,584 USD
View
A
Retailer 3
-
HK$22,909 HKD
$2,920 USD
View
A
Retailer 4
-
HK$25,279 HKD
$3,222 USD
View
A
Retailer 5
-
HK$32,403 HKD
$4,130 USD
View
A
Retailer 6
-
HK$32,787 HKD
$4,179 USD
View
B+
Retailer 7
-
HK$33,713 HKD
$4,297 USD
View
B+
Retailer 8
-
HK$40,366 HKD
€4,900 EUR
View
B+
Retailer 9
-
HK$64,208 HKD
£6,444 GBP
View
B
Retailer 10
-
HK$121,295 HKD
$15,460 USD
View
Most Expensive
B
Do Amore Diamonds
27-00B62D06B · Oct 29
HK$128,199 HKD
$16,340 USD
View
10 more retailers have this diamond
Prices start from HK$18,594 HKDSave up to HK$109,604 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
3.49ct Heart
HK$18,594 HKD