CaratHunter
Plans
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 €919 EUR
As of November 6, 2026
Save €3,459 EUR (79%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: €7,757 EUR 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: €7,757 EUR|Low: €897 EUR|High: €7,757 EUR|Avg: €2,428 EUR|+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 2€919 EUR
Retailer 5€1,016 EUR
Retailer 17€1,048 EUR
Retailer 3€1,058 EUR
Retailer 16€1,359 EUR
Retailer 6€1,469 EUR
Retailer 14€1,502 EUR
Retailer 12€1,554 EUR
Retailer 7€1,725 EUR
Retailer 4€2,504 EUR
Retailer 18€2,581 EUR
Retailer 10€2,673 EUR
Retailer 8€2,674 EUR
Retailer 13€3,034 EUR
Retailer 15€3,469 EUR
Retailer 11€3,652 EUR
Retailer 19€4,378 EUR
Retailer 9€6,314 EUR
Mervis Diamond Importers€7,757 EUR

31 data points across 19 retailers

20 retailers€919 EUR to €4,378 EUR

Retailer 1
-
€906 EUR
Price last confirmed 25 days ago
A
Retailer 2
-
€919 EUR
View
Final sale: no returns
A
Retailer 3
-
€1,016 EUR
View
A
Retailer 4
-
€1,048 EUR
View
A
Retailer 5
-
€1,058 EUR
View
Retailer 6
-
€1,359 EUR
View
Price last confirmed 14 days ago
B+
Retailer 7
-
€1,469 EUR
View
B+
Retailer 8
-
€1,502 EUR
View
B+
Retailer 9
-
€1,554 EUR
View
B+
Retailer 10
-
€1,725 EUR
View
B
Retailer 11
-
€2,504 EUR
View
B
Retailer 12
-
€2,581 EUR
View
B
Retailer 13
-
€2,673 EUR
View
B
Retailer 14
-
€2,674 EUR
View
B
Retailer 15
-
€3,034 EUR
View
B
Retailer 16
-
€3,469 EUR
View
B
Retailer 17
-
€3,652 EUR
View
B
Retailer 18
-
€4,378 EUR
View
Retailer 19
-
€6,314 EUR
View
Price under review
Most Expensive
Mervis Diamond Importers
1958943385 · Nov 6
€7,757 EUR
$8,661 USD
View
Price under review
19 more retailers have this diamond
Prices start from €919 EURSave up to €3,459 EUR

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
€919 EUR