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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 $1,315 SGD
As of November 6, 2026
Save $4,950 SGD (79%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $11,100 SGD 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: $11,100 SGD|Low: $1,283 SGD|High: $11,100 SGD|Avg: $3,475 SGD|+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$1,315 SGD
Retailer 5$1,453 SGD
Retailer 17$1,499 SGD
Retailer 3$1,514 SGD
Retailer 16$1,944 SGD
Retailer 6$2,102 SGD
Retailer 14$2,149 SGD
Retailer 12$2,224 SGD
Retailer 7$2,468 SGD
Retailer 4$3,583 SGD
Retailer 18$3,694 SGD
Retailer 10$3,824 SGD
Retailer 8$3,826 SGD
Retailer 13$4,342 SGD
Retailer 15$4,964 SGD
Retailer 11$5,225 SGD
Retailer 19$6,264 SGD
Retailer 9$9,035 SGD
Mervis Diamond Importers$11,100 SGD

31 data points across 19 retailers

20 retailers$1,315 SGD to $6,264 SGD

Retailer 1
-
$1,297 SGD
Price last confirmed 25 days ago
A
Retailer 2
-
$1,315 SGD
View
Final sale: no returns
A
Retailer 3
-
$1,453 SGD
View
A
Retailer 4
-
$1,499 SGD
View
A
Retailer 5
-
$1,514 SGD
View
Retailer 6
-
$1,944 SGD
View
Price last confirmed 14 days ago
B+
Retailer 7
-
$2,102 SGD
View
B+
Retailer 8
-
$2,149 SGD
View
B+
Retailer 9
-
$2,224 SGD
View
B+
Retailer 10
-
$2,468 SGD
View
B
Retailer 11
-
$3,583 SGD
View
B
Retailer 12
-
$3,694 SGD
View
B
Retailer 13
-
$3,824 SGD
View
B
Retailer 14
-
$3,826 SGD
View
B
Retailer 15
-
$4,342 SGD
View
B
Retailer 16
-
$4,964 SGD
View
B
Retailer 17
-
$5,225 SGD
View
B
Retailer 18
-
$6,264 SGD
View
Retailer 19
-
$9,035 SGD
View
Price under review
Most Expensive
Mervis Diamond Importers
1958943385 · Nov 6
$11,100 SGD
$8,661 USD
View
Price under review
19 more retailers have this diamond
Prices start from $1,315 SGDSave up to $4,950 SGD

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
$1,315 SGD