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Heart|Natural|GIA

1.21ct H SI2 Heart Natural Diamond

EX • H/SI2 • GIA 1539635227

Certificate GIA 1539635227

Diamond specifications and retailer prices

From $2,542 SGD
As of October 31, 2026
Save $3,298 SGD (56%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $5,840 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 1539635227. Listed at 7 retailers as of October 30, 2026, with prices from $2,542 to $5,840, a $3,298 spread on the same certified stone. NZ Jewellers lists it at $5,840. 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
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1539635227
Dimensions7.39 × 6.43 × 3.73 mm
L/W Ratio1.15
Key to symbols
Twinning Wisp, Crystal, Cloud, Feather, Needle, Indented Natural
Top View
7.39 mm6.43 mm1.21 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1539635227
Side View
Table 58.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 58.0%

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: Oct 31
Current: $5,840 SGD|Low: $2,360 SGD|High: $6,559 SGD|Avg: $3,509 SGD|-2.4%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 1, 2026
Retailer 6$2,542 SGD
Retailer 4$2,736 SGD
Retailer 9$2,896 SGD
Retailer 8$2,922 SGD
Retailer 2$2,931 SGD
Retailer 3$3,027 SGD
Retailer 7$3,043 SGD
Retailer 10$3,174 SGD
Retailer 12$3,182 SGD
Retailer 11$3,674 SGD
Retailer 5$4,893 SGD
NZ Jewellers$5,840 SGD

30 data points across 12 retailers

7 retailers$2,542 SGD to $5,840 SGD

A
Cheapest Retailer
-
$2,542 SGD
B+
Retailer 2
-
$2,896 SGD
$2,265 USD
View
Final sale: no returns
B+
Retailer 3
-
$2,922 SGD
$2,286 USD
View
B+
Retailer 4
-
$2,931 SGD
$2,293 USD
View
B+
Retailer 5
-
$3,043 SGD
$2,380 USD
View
B
Retailer 6
-
$4,893 SGD
£3,014 GBP
View
Most Expensive
B
NZ Jewellers
b68ae1d6-3e41-4c83-a5b7-b706b500f6f1 · Oct 30
$5,840 SGD
$4,568 USD
View
6 more retailers have this diamond
Prices start from $2,542 SGDSave up to $3,298 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
$2,542 SGD