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Heart|Natural|GIA

1.21ct H SI2 Heart Natural Diamond

VG • H/SI2 • GIA 1156383057

Certificate GIA 1156383057

Diamond specifications and retailer prices

From $5,238 SGD
$4,097 USD
As of November 1, 2026
Save $1,771 SGD (25%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $11,213 SGD at NZ Jewellers · As of October 30, 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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 1156383057. Listed at 13 retailers as of October 31, 2026, with a 34% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.21
Carat
H
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishGood
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1156383057
Dimensions6.37 × 7.84 × 3.82 mm
L/W Ratio1.23
Culet sizeNone
Top View
6.37 mm7.84 mm1.21 ctH / SI2
OriginNatural
CutVery Good
PolishGood
SymmetryGood
FluorescenceNone
CertificateGIA 1156383057
Side View
Table 66.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 48.8%

Caratlytics Score

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B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $11,213 SGD|Low: $5,737 SGD|High: $11,213 SGD|Avg: $7,355 SGD
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
November 2, 2026
Retailer 4$5,737 SGD
Retailer 7$6,074 SGD
Retailer 8$6,074 SGD
Retailer 9$6,074 SGD
Retailer 5$6,617 SGD
Retailer 2$6,692 SGD
Retailer 11$6,938 SGD
Retailer 3$7,002 SGD
Retailer 10$7,008 SGD
Retailer 12$7,399 SGD
Retailer 13$7,978 SGD
Retailer 6$10,678 SGD
NZ Jewellers$11,213 SGD

40 data points across 13 retailers

13 retailers$5,238 SGD to $7,008 SGD

B
Cheapest Retailer
-
$5,238 SGD
$4,097 USD
B
Retailer 2
-
$5,296 SGD
$4,143 USD
View
B
Retailer 3
-
$5,737 SGD
CA$6,233 CAD
View
C
Retailer 4
-
$6,074 SGD
$4,751 USD
View
C
Retailer 5
-
$6,074 SGD
$4,751 USD
View
C
Retailer 6
-
$6,074 SGD
$4,751 USD
View
C
Retailer 7
-
$6,617 SGD
$5,176 USD
View
C
Retailer 8
-
$6,692 SGD
£4,122 GBP
View
C
Retailer 9
-
$6,938 SGD
$5,427 USD
View
C
Retailer 10
-
$7,008 SGD
$5,482 USD
View
Retailer 11
-
$7,399 SGD
$5,788 USD
View
Price last confirmed 10 days ago
Retailer 12
-
$10,678 SGD
£6,577 GBP
View
Price under review
Most Expensive
NZ Jewellers
1bb0eaf2-3cf1-4bd8-af76-9583fc411974 · Oct 30
$11,213 SGD
$8,771 USD
View
Price under review
12 more retailers have this diamond
Prices start from $5,238 SGDSave up to $1,771 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
$5,238 SGD