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Heart|Natural|GIA

1.23ct G SI1 Heart Natural Diamond

ID • G/SI1 • GIA 1232913295

Certificate GIA 1232913295

Diamond specifications and retailer prices

From $3,418 CAD
As of November 1, 2026
Save $4,186 CAD (55%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $7,888 CAD at NZ Jewellers · As of October 21, 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 G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1232913295. Listed at 16 retailers as of November 1, 2026, with a 122% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
G
Color
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1232913295
Dimensions6.43 × 7.34 × 4.39 mm
L/W Ratio1.14
Culet sizeNone
Key to symbols
Twinning Wisp, Crystal, Feather
Top View
6.43 mm7.34 mm1.23 ctG / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1232913295
Side View
Table 58.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 59.9%

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: $7,888 CAD|Low: $3,418 CAD|High: $7,888 CAD|Avg: $4,793 CAD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
November 7, 2026
Retailer 13$3,418 CAD
Retailer 9$3,517 CAD
Retailer 15$3,550 CAD
Retailer 16$4,102 CAD
Retailer 8$4,245 CAD
Retailer 14$4,259 CAD
Retailer 3$4,346 CAD
Retailer 10$4,435 CAD
Retailer 4$4,470 CAD
Retailer 6$4,712 CAD
Retailer 7$4,712 CAD
Retailer 17$4,733 CAD
Retailer 5$4,867 CAD
Retailer 11$5,321 CAD
Retailer 12$5,580 CAD
Retailer 2$7,604 CAD
NZ Jewellers$7,888 CAD

32 data points across 17 retailers

16 retailers$3,418 CAD to $7,604 CAD

A
Cheapest Retailer
-
$3,418 CAD
B+
Retailer 2
-
$3,550 CAD
View
Retailer 3
-
$4,102 CAD
View
Price last confirmed 16 days ago
Retailer 4
-
$4,259 CAD
View
Price last confirmed 16 days ago
B+
Retailer 5
-
$4,346 CAD
View
B+
Retailer 6
-
$4,435 CAD
View
B+
Retailer 7
-
$4,470 CAD
View
B+
Retailer 8
-
$4,712 CAD
View
B+
Retailer 9
-
$4,712 CAD
View
Retailer 10
-
$4,733 CAD
View
Price last confirmed 53 days ago
Retailer 11
-
$4,733 CAD
View
Price last confirmed 15 days ago
B+
Retailer 12
-
$4,867 CAD
View
B+
Retailer 13
-
$5,321 CAD
View
B
Retailer 14
-
$5,580 CAD
View
B
Retailer 15
-
$7,604 CAD
View
Most Expensive
NZ Jewellers
bdcd893b-9df2-49a8-b8b8-b0fae6f44362 · Oct 21
$7,888 CAD
$5,608 USD
View
Price last confirmed 17 days ago
15 more retailers have this diamond
Prices start from $3,418 CADSave up to $4,186 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
$3,418 CAD