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Heart|Natural|GIA

1.21ct H SI2 Heart Natural Diamond

EX • H/SI2 • GIA 5426090686

Certificate GIA 5426090686

Diamond specifications and retailer prices

From $3,368 SGD
$2,633 USD
As of October 31, 2026
Save $4,275 SGD (56%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $7,643 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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5426090686. Listed at 25 retailers as of October 30, 2026, with prices from $3,368 to $7,643, a $4,275 spread on the same certified stone. NZ Jewellers lists it at $7,643. 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
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5426090686
Dimensions6.59 × 7.07 × 4.31 mm
L/W Ratio1.07
Top View
6.59 mm7.07 mm1.21 ctH / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 5426090686
Side View
Table 64.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 60.9%

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: Oct 31
Current: $4,337 SGD|Low: $3,424 SGD|High: $7,424 SGD|Avg: $4,465 SGD|-1.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 3$3,424 SGD
Retailer 9$3,485 SGD
Retailer 7$3,559 SGD
Retailer 8$3,733 SGD
Retailer 11$3,975 SGD
Retailer 10$4,127 SGD
Retailer 2$4,279 SGD
Retailer 1$4,337 SGD
Retailer 5$4,585 SGD
Retailer 4$5,134 SGD
Retailer 6$7,337 SGD

41 data points across 11 retailers

25 retailers$3,368 SGD to $7,643 SGD

B+
Cheapest Retailer
-
$3,368 SGD
$2,633 USD
B+
Retailer 2
-
$3,424 SGD
$2,677 USD
View
B+
Retailer 3
-
$3,485 SGD
$2,725 USD
View
Final sale: no returns
B+
Retailer 4
-
$3,514 SGD
$2,748 USD
View
B+
Retailer 5
-
$3,559 SGD
$2,783 USD
View
B+
Retailer 6
-
$3,733 SGD
$2,919 USD
View
B
Retailer 7
-
$3,975 SGD
$3,108 USD
View
B
Retailer 8
-
$3,975 SGD
$3,108 USD
View
B
Retailer 9
-
$4,002 SGD
$3,129 USD
View
B
Retailer 10
-
$4,062 SGD
CA$4,411 CAD
View
B
Retailer 11
-
$4,127 SGD
$3,227 USD
View
B
Retailer 12
-
$4,279 SGD
$3,346 USD
View
B
Retailer 13
-
$4,318 SGD
$3,376 USD
View
B
Retailer 14
-
$4,337 SGD
£2,670 GBP
View
B
Retailer 15
-
$4,515 SGD
$3,530 USD
View
B
Retailer 16
-
$4,515 SGD
$3,530 USD
View
B
Retailer 17
-
$4,585 SGD
£2,823 GBP
View
B
Retailer 18
-
$4,586 SGD
$3,586 USD
View
B
Retailer 19
-
$4,668 SGD
$3,650 USD
View
Retailer 20
-
$4,971 SGD
$3,887 USD
View
Price last confirmed 10 days ago
B
Retailer 21
-
$5,134 SGD
€3,823 EUR
View
B
Retailer 22
-
$5,153 SGD
$4,029 USD
View
B
Retailer 23
-
$6,332 SGD
$4,951 USD
View
B
Retailer 24
-
$7,337 SGD
£4,517 GBP
View
Most Expensive
B
NZ Jewellers
b2c6f282-9c68-4ba7-94d9-d58a71100785 · Oct 30
$7,643 SGD
$5,976 USD
View
24 more retailers have this diamond
Prices start from $3,368 SGDSave up to $4,275 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
$3,368 SGD