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Heart|Natural|GIA

1.21ct H SI2 Heart Natural Diamond

EX • H/SI2 • GIA 6552581364

Certificate GIA 6552581364

Diamond specifications and retailer prices

From $2,144 SGD
HK$13,100 HKD
As of November 2, 2026
Save $3,016 SGD (58%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $6,700 SGD at NZ Jewellers · As of September 25, 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 H 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 6552581364. Listed at 12 retailers as of October 29, 2026, with a 141% 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

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

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6552581364
Dimensions6.47 × 7.29 × 4.23 mm
L/W Ratio1.13
Girdle conditionFaceted
Top View
6.47 mm7.29 mm1.21 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6552581364
Side View
Table 59.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 57.9%

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 2
Current: $2,144 SGD|Low: $2,112 SGD|High: $5,681 SGD|Avg: $3,243 SGD|-8.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 1$2,144 SGD
Retailer 6$2,337 SGD
Retailer 4$2,434 SGD
Retailer 10$2,535 SGD
Retailer 8$2,585 SGD
Retailer 7$2,698 SGD
Retailer 5$2,822 SGD
Retailer 2$4,380 SGD
Retailer 3$4,655 SGD
Retailer 9$5,160 SGD

40 data points across 10 retailers

12 retailers$2,144 SGD to $5,160 SGD

A
Cheapest Retailer
-
$2,144 SGD
HK$13,100 HKD
A
Retailer 2
-
$2,337 SGD
$1,827 USD
View
A
Retailer 3
-
$2,434 SGD
$1,903 USD
View
Final sale: no returns
A
Retailer 4
-
$2,535 SGD
$1,983 USD
View
A
Retailer 5
-
$2,585 SGD
$2,021 USD
View
A
Retailer 6
-
$2,698 SGD
$2,110 USD
View
B+
Retailer 7
-
$2,822 SGD
£1,737 GBP
View
B+
Retailer 8
-
$3,249 SGD
A$3,908 AUD
View
B
Retailer 9
-
$4,380 SGD
$3,425 USD
View
B
Retailer 10
-
$4,655 SGD
$3,640 USD
View
B
Retailer 11
-
$5,160 SGD
£3,177 GBP
View
Most Expensive
NZ Jewellers
6173e6b6-e200-4ca0-9bfb-b2af4827b16b · Sep 25
$6,700 SGD
$5,239 USD
View
Price last confirmed 38 days ago
11 more retailers have this diamond
Prices start from $2,144 SGDSave up to $3,016 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
$2,144 SGD