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Heart|Lab Grown|IGI

3.21ct D FL Heart Lab Grown Diamond

ID • D/FL • IGI LG804660159

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG804660159

Diamond specifications and retailer prices

From HK$16,687 HKD
As of November 4, 2026
Save HK$98,089 HKD (85%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: HK$114,775 HKD at Do Amore Diamonds · As of November 4, 2026
View at Do Amore Diamonds

About this 3.21ct lab-grown heart diamond

This 3.21ct 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 LG804660159 or 804660159. Listed at 12 retailers as of November 4, 2026, with prices from HK$16,687 to HK$114,775, a HK$98,089 spread on the same certified stone. Do Amore Diamonds lists it at HK$114,775. 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

3.21
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.6°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG804660159
Dimensions9.96 × 8.93 × 6.17 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
9.96 mm8.93 mm3.21 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG804660159
Side View
Table 61.0%Crown 36.6°Girdle: STK-THKPavilion 40.6°Culet: NoneDepth 61.9%

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$114,775 HKD|Low: HK$16,687 HKD|High: HK$137,134 HKD|Avg: HK$47,095 HKD|-16.3%
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
Retailer 13
Retailer 14
November 5, 2026
Retailer 14HK$16,687 HKD
Retailer 8HK$18,154 HKD
Retailer 11HK$19,629 HKD
Retailer 12HK$20,672 HKD
Retailer 13HK$21,645 HKD
Retailer 4HK$22,327 HKD
Retailer 10HK$29,365 HKD
Retailer 9HK$30,243 HKD
Retailer 7HK$30,337 HKD
Retailer 5HK$45,369 HKD
Retailer 2HK$57,050 HKD
Retailer 6HK$74,741 HKD
Retailer 3HK$111,559 HKD
Do Amore DiamondsHK$114,775 HKD

30 data points across 14 retailers

12 retailersHK$16,687 HKD to HK$114,775 HKD

A
Cheapest Retailer
-
HK$16,687 HKD
A
Retailer 2
-
HK$18,154 HKD
View
A
Retailer 3
-
HK$19,629 HKD
View
A
Retailer 4
-
HK$20,672 HKD
View
A
Retailer 5
-
HK$21,645 HKD
View
A
Retailer 6
-
HK$22,327 HKD
View
Final sale: no returns
A
Retailer 7
-
HK$29,365 HKD
View
A
Retailer 8
-
HK$30,243 HKD
View
A
Retailer 9
-
HK$30,337 HKD
View
B+
Retailer 10
-
HK$57,050 HKD
View
B
Retailer 11
-
HK$111,559 HKD
View
Most Expensive
B
Do Amore Diamonds
27-45FF374D3 · Nov 4
HK$114,775 HKD
$14,630 USD
View
11 more retailers have this diamond
Prices start from HK$16,687 HKDSave up to HK$98,089 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
3.21ct Heart
HK$16,687 HKD