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Heart|Lab Grown|GIA

3.21ct G SI1 Heart Lab Grown Diamond

EX • G/SI1 • GIA 1459199399

Certificate GIA 1459199399

Diamond specifications and retailer prices

From HK$8,041 HKD
As of November 6, 2026
Save HK$30,268 HKD (79%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: HK$67,880 HKD at Mervis Diamond Importers · As of November 6, 2026
View at Mervis Diamond Importers

About this 3.21ct lab-grown heart diamond

This 3.21ct lab-grown heart sits in the three to five carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1459199399. Listed at 20 retailers as of November 6, 2026, with a 376% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

3.21
Carat
G
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabGIA
CertificateGIA 1459199399
Dimensions9.39 × 8.14 × 5.51 mm
L/W Ratio1.15
Culet sizeNone
Key to symbols
Feather
Top View
9.39 mm8.14 mm3.21 ctG / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1459199399
Side View
Table 63.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 67.7%

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 6
Current: HK$67,880 HKD|Low: HK$7,845 HKD|High: HK$67,880 HKD|Avg: HK$21,249 HKD|+139.1%
Mervis Diamond Importers
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
November 6, 2026
Retailer 2HK$8,041 HKD
Retailer 5HK$8,888 HKD
Retailer 17HK$9,170 HKD
Retailer 3HK$9,256 HKD
Retailer 16HK$11,889 HKD
Retailer 6HK$12,853 HKD
Retailer 14HK$13,143 HKD
Retailer 12HK$13,598 HKD
Retailer 7HK$15,095 HKD
Retailer 4HK$21,913 HKD
Retailer 18HK$22,587 HKD
Retailer 10HK$23,387 HKD
Retailer 8HK$23,395 HKD
Retailer 13HK$26,553 HKD
Retailer 15HK$30,354 HKD
Retailer 11HK$31,953 HKD
Retailer 19HK$38,309 HKD
Retailer 9HK$55,254 HKD
Mervis Diamond ImportersHK$67,880 HKD

31 data points across 19 retailers

20 retailersHK$8,041 HKD to HK$38,309 HKD

Retailer 1
-
HK$7,931 HKD
Price last confirmed 25 days ago
A
Retailer 2
-
HK$8,041 HKD
View
Final sale: no returns
A
Retailer 3
-
HK$8,888 HKD
View
A
Retailer 4
-
HK$9,170 HKD
View
A
Retailer 5
-
HK$9,256 HKD
View
Retailer 6
-
HK$11,889 HKD
View
Price last confirmed 14 days ago
B+
Retailer 7
-
HK$12,853 HKD
View
B+
Retailer 8
-
HK$13,143 HKD
View
B+
Retailer 9
-
HK$13,598 HKD
View
B+
Retailer 10
-
HK$15,095 HKD
View
B
Retailer 11
-
HK$21,913 HKD
View
B
Retailer 12
-
HK$22,587 HKD
View
B
Retailer 13
-
HK$23,387 HKD
View
B
Retailer 14
-
HK$23,395 HKD
View
B
Retailer 15
-
HK$26,553 HKD
View
B
Retailer 16
-
HK$30,354 HKD
View
B
Retailer 17
-
HK$31,953 HKD
View
B
Retailer 18
-
HK$38,309 HKD
View
Retailer 19
-
HK$55,254 HKD
View
Price under review
Most Expensive
Mervis Diamond Importers
1958943385 · Nov 6
HK$67,880 HKD
$8,661 USD
View
Price under review
19 more retailers have this diamond
Prices start from HK$8,041 HKDSave up to HK$30,268 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$8,041 HKD