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Heart|Natural|GIA

1.23ct I SI2 Heart Natural Diamond

EX • I/SI2 • GIA 6532310035

Certificate GIA 6532310035

Diamond specifications and retailer prices

From $3,361 NZD
As of November 2, 2026
Save $4,930 NZD (59%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $8,291 NZD at NZ Jewellers · As of November 3, 2026
View at NZ Jewellers

About this 1.23ct natural heart diamond

This 1.23ct natural heart sits in the classic one-carat band, graded I 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 6532310035. Listed at 5 retailers as of November 2, 2026, with prices from $3,361 to $8,291, a $4,930 spread on the same certified stone. NZ Jewellers lists it at $8,291. 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

1.23
Carat
I
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.43°
Pavilion angle41.77°
OriginNatural
Grading LabGIA
CertificateGIA 6532310035
Dimensions6.39 × 7.53 × 4.55 mm
L/W Ratio1.18
Top View
6.39 mm7.53 mm1.23 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6532310035
Side View
Table 59.0%Crown 36.43°GirdlePavilion 41.77°CuletDepth 60.4%

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 2
Current: $8,291 NZD|Low: $3,361 NZD|High: $8,478 NZD|Avg: $4,706 NZD|-2.2%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 2, 2026
Retailer 2$3,361 NZD
Retailer 5$3,399 NZD
Retailer 4$3,555 NZD
Retailer 7$3,994 NZD
Retailer 6$4,061 NZD
Retailer 8$4,510 NZD
Retailer 3$5,956 NZD
NZ Jewellers$8,291 NZD

26 data points across 8 retailers

5 retailers$3,361 NZD to $8,291 NZD

A
Cheapest Retailer
-
$3,361 NZD
A
Retailer 2
-
$3,399 NZD
View
A
Retailer 3
-
$3,555 NZD
View
B
Retailer 4
-
$5,956 NZD
View
Most Expensive
B
NZ Jewellers
7fd7a8d8-743f-475e-ac9f-8c92ae388d23 · Nov 3
$8,291 NZD
$4,596 USD
View
4 more retailers have this diamond
Prices start from $3,361 NZDSave up to $4,930 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
1.23ct Heart
$3,361 NZD