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Heart|Natural|GIA

1.21ct E SI2 Heart Natural Diamond

EX • E/SI2 • GIA 6542545800

Certificate GIA 6542545800

Diamond specifications and retailer prices

From $3,719 NZD
£1,651 GBP
As of November 1, 2026
Save $4,144 NZD (53%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $7,864 NZD 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 E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6542545800. Listed at 6 retailers as of October 30, 2026, with prices from $3,719 to $7,864, a $4,144 spread on the same certified stone. NZ Jewellers lists it at $7,864. 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
E
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.07°
Pavilion angle40.07°
OriginNatural
Grading LabGIA
CertificateGIA 6542545800
Dimensions6.37 × 7.05 × 4.45 mm
L/W Ratio1.11
Top View
6.37 mm7.05 mm1.21 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6542545800
Side View
Table 61.0%Crown 44.07°Girdle: MED-VTKPavilion 40.07°Culet: NoneDepth 63.1%

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 1
Current: $7,864 NZD|Low: $3,719 NZD|High: $7,965 NZD|Avg: $4,941 NZD|-1.3%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 2$3,719 NZD
Retailer 5$3,762 NZD
Retailer 6$3,935 NZD
Retailer 7$4,006 NZD
Retailer 3$4,600 NZD
Retailer 8$4,615 NZD
Retailer 11$4,626 NZD
Retailer 9$4,737 NZD
Retailer 10$5,051 NZD
Retailer 4$6,625 NZD
NZ Jewellers$7,864 NZD

30 data points across 11 retailers

6 retailers$3,719 NZD to $7,864 NZD

A
Cheapest Retailer
-
$3,719 NZD
£1,651 GBP
A
Retailer 2
-
$3,762 NZD
$2,120 USD
View
A
Retailer 3
-
$3,935 NZD
$2,218 USD
View
A
Retailer 4
-
$4,006 NZD
$2,258 USD
View
B+
Retailer 5
-
$6,625 NZD
£2,940 GBP
View
Most Expensive
B
NZ Jewellers
beba394f-2a39-4cb9-9660-3e3eea33b07b · Oct 30
$7,864 NZD
$4,432 USD
View
5 more retailers have this diamond
Prices start from $3,719 NZDSave up to $4,144 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
$3,719 NZD