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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 $3,601 NZD
As of November 5, 2026
Save $5,046 NZD (58%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $8,646 NZD 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 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 November 5, 2026, with prices from $3,601 to $8,646, a $5,046 spread on the same certified stone. NZ Jewellers lists it at $8,646. 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: Nov 5
Current: $8,646 NZD|Low: $3,330 NZD|High: $9,256 NZD|Avg: $4,929 NZD|-6.6%
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 5, 2026
Retailer 2$3,601 NZD
Retailer 4$3,860 NZD
Retailer 9$4,086 NZD
Retailer 7$4,136 NZD
Retailer 3$4,272 NZD
Retailer 8$4,293 NZD
Retailer 6$4,326 NZD
Retailer 10$4,479 NZD
Retailer 12$4,490 NZD
Retailer 11$5,183 NZD
Retailer 5$7,225 NZD
NZ Jewellers$8,646 NZD

31 data points across 12 retailers

7 retailers$3,601 NZD to $8,646 NZD

A
Cheapest Retailer
-
$3,601 NZD
B+
Retailer 2
-
$4,086 NZD
View
Final sale: no returns
B+
Retailer 3
-
$4,136 NZD
View
B+
Retailer 4
-
$4,293 NZD
View
B+
Retailer 5
-
$4,326 NZD
View
B
Retailer 6
-
$7,225 NZD
View
Most Expensive
B
NZ Jewellers
b68ae1d6-3e41-4c83-a5b7-b706b500f6f1 · Nov 5
$8,646 NZD
$4,793 USD
View
6 more retailers have this diamond
Prices start from $3,601 NZDSave up to $5,046 NZD

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
$3,601 NZD