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Heart|Natural|GIA

1.23ct K SI2 Heart Natural Diamond

EX • K/SI2 • GIA 1246072305

Certificate GIA 1246072305

Diamond specifications and retailer prices

From $1,782 CAD
As of November 4, 2026
Save $4,131 CAD (70%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $5,913 CAD at NZ Jewellers · As of November 5, 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 K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1246072305. Listed at 11 retailers as of November 4, 2026, with prices from $1,782 to $5,913, a $4,131 spread on the same certified stone. NZ Jewellers lists it at $5,913. 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
K
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceStrong
Pavilion angle38.99°
OriginNatural
Grading LabGIA
CertificateGIA 1246072305
Dimensions6.30 × 7.36 × 4.39 mm
L/W Ratio1.17
Key to symbols
Feather, Twinning Wisp
Top View
6.30 mm7.36 mm1.23 ctK / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceStrong
CertificateGIA 1246072305
Side View
Table 61.0%CrownGirdle: STK-VTKPavilion 38.99°Culet: NoneDepth 59.7%

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 4
Current: $5,913 CAD|Low: $1,782 CAD|High: $6,338 CAD|Avg: $3,186 CAD|-6.7%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 11$1,782 CAD
Retailer 10$2,291 CAD
Retailer 8$2,424 CAD
Retailer 4$2,473 CAD
Retailer 2$2,480 CAD
Retailer 7$2,536 CAD
Retailer 3$2,691 CAD
Retailer 6$2,858 CAD
Retailer 5$3,722 CAD
Retailer 9$4,248 CAD
NZ Jewellers$5,913 CAD

30 data points across 11 retailers

11 retailers$1,782 CAD to $5,913 CAD

A
Cheapest Retailer
-
$1,782 CAD
B+
Retailer 2
-
$2,291 CAD
View
A
Retailer 3
-
$2,424 CAD
View
B+
Retailer 4
-
$2,473 CAD
View
B+
Retailer 5
-
$2,480 CAD
View
B+
Retailer 6
-
$2,536 CAD
View
B+
Retailer 7
-
$2,691 CAD
View
B+
Retailer 8
-
$2,858 CAD
View
B+
Retailer 9
-
$3,722 CAD
View
B
Retailer 10
-
$4,248 CAD
View
Most Expensive
B
NZ Jewellers
fdde17d1-cee7-4b88-852b-47df3ef7bc74 · Nov 5
$5,913 CAD
$4,204 USD
View
10 more retailers have this diamond
Prices start from $1,782 CADSave up to $4,131 CAD

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
$1,782 CAD