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Heart|Natural|GIA

1.21ct I SI2 Heart Natural Diamond

EX • I/SI2 • GIA 5536984909

Certificate GIA 5536984909

Diamond specifications and retailer prices

From $2,153 SGD
As of November 6, 2026
Save $3,699 SGD (63%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $5,852 SGD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.21ct natural heart diamond

This 1.21ct natural heart sits in the classic one-carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5536984909. Listed at 16 retailers as of November 5, 2026, with prices from $2,153 to $5,852, a $3,699 spread on the same certified stone. NZ Jewellers lists it at $5,852. 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

1.21
Carat
I
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36.07°
Pavilion angle43°
OriginNatural
Grading LabGIA
CertificateGIA 5536984909
Dimensions7.43 × 6.55 × 4.46 mm
L/W Ratio1.13
Top View
7.43 mm6.55 mm1.21 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 5536984909
Side View
Table 60.0%Crown 36.07°Girdle: STK-VTKPavilion 43°Culet: NoneDepth 60.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $5,852 SGD|Low: $2,153 SGD|High: $6,029 SGD|Avg: $3,083 SGD|-2.9%
NZ Jewellers
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
November 6, 2026
Retailer 9$2,153 SGD
Retailer 2$2,181 SGD
Retailer 10$2,324 SGD
Retailer 4$2,399 SGD
Retailer 6$2,407 SGD
Retailer 7$2,472 SGD
Retailer 5$2,509 SGD
Retailer 12$2,539 SGD
Retailer 13$2,566 SGD
Retailer 8$2,577 SGD
Retailer 15$2,595 SGD
Retailer 14$2,727 SGD
Retailer 11$3,210 SGD
Retailer 3$4,191 SGD
NZ Jewellers$5,852 SGD

30 data points across 15 retailers

16 retailers$2,153 SGD to $5,852 SGD

A
Cheapest Retailer
-
$2,153 SGD
A
Retailer 2
-
$2,181 SGD
View
Final sale: no returns
A
Retailer 3
-
$2,324 SGD
View
A
Retailer 4
-
$2,399 SGD
View
A
Retailer 5
-
$2,407 SGD
View
Retailer 6
-
$2,472 SGD
View
Price last confirmed 9 days ago
Retailer 7
-
$2,472 SGD
View
Price last confirmed 22 days ago
A
Retailer 8
-
$2,509 SGD
View
A
Retailer 9
-
$2,539 SGD
View
A
Retailer 10
-
$2,566 SGD
View
A
Retailer 11
-
$2,577 SGD
View
B+
Retailer 12
-
$2,595 SGD
View
A
Retailer 13
-
$2,727 SGD
View
B+
Retailer 14
-
$3,210 SGD
View
B
Retailer 15
-
$4,191 SGD
View
Most Expensive
B
NZ Jewellers
a466cf9b-e0f0-4729-a109-7e13c56f6111 · Nov 5
$5,852 SGD
$4,566 USD
View
15 more retailers have this diamond
Prices start from $2,153 SGDSave up to $3,699 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
1.21ct Heart
$2,153 SGD