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Heart|Natural|GIA

1.21ct I SI2 Heart Natural Diamond

EX • I/SI2 • GIA 6542649830

Certificate GIA 6542649830

Diamond specifications and retailer prices

From $2,823 SGD
As of November 4, 2026
Save $4,388 SGD (61%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $7,212 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 6542649830. Listed at 15 retailers as of November 4, 2026, with prices from $2,823 to $7,212, a $4,388 spread on the same certified stone. NZ Jewellers lists it at $7,212. 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
FluorescenceNone
Crown angle37.21°
Pavilion angle38.86°
OriginNatural
Grading LabGIA
CertificateGIA 6542649830
Dimensions7.33 × 6.44 × 4.11 mm
L/W Ratio1.14
Top View
7.33 mm6.44 mm1.21 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6542649830
Side View
Table 58.0%Crown 37.21°Girdle: Very ThickPavilion 38.86°Culet: NoneDepth 56.0%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $7,212 SGD|Low: $2,404 SGD|High: $7,212 SGD|Avg: $4,035 SGD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 5$2,885 SGD
Retailer 8$3,125 SGD
Retailer 9$3,125 SGD
Retailer 6$3,269 SGD
Retailer 2$3,391 SGD
Retailer 7$3,404 SGD
Retailer 3$3,650 SGD
Retailer 4$6,026 SGD
NZ Jewellers$7,212 SGD

42 data points across 9 retailers

15 retailers$2,823 SGD to $7,212 SGD

B+
Cheapest Retailer
-
$2,823 SGD
B+
Retailer 2
-
$2,885 SGD
View
Final sale: no returns
B+
Retailer 3
-
$3,014 SGD
View
B+
Retailer 4
-
$3,125 SGD
View
Retailer 5
-
$3,125 SGD
View
Price last confirmed 9 days ago
B+
Retailer 6
-
$3,269 SGD
View
B+
Retailer 7
-
$3,391 SGD
View
B+
Retailer 8
-
$3,404 SGD
View
B
Retailer 9
-
$3,588 SGD
View
B
Retailer 10
-
$3,588 SGD
View
B
Retailer 11
-
$3,606 SGD
View
B+
Retailer 12
-
$3,650 SGD
View
B
Retailer 13
-
$3,704 SGD
View
B
Retailer 14
-
$6,026 SGD
View
Most Expensive
B
NZ Jewellers
5fd23dc7-293c-4423-baa7-ab88def76700 · Nov 5
$7,212 SGD
$5,627 USD
View
14 more retailers have this diamond
Prices start from $2,823 SGDSave up to $4,388 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.

B+
1.21ct Heart
$2,823 SGD