Heart|Natural|GIA

1.51ct J SI1 Heart Natural Diamond

EX • J/SI1 • GIA 1242032984

Certificate GIA 1242032984

Diamond specifications and retailer prices

From $4,033 CAD
As of November 6, 2026
Save $5,079 CAD (56%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $10,306 CAD at NZ Jewellers · As of September 25, 2026
View at NZ Jewellers

About this 1.51ct natural heart diamond

This 1.51ct natural heart sits in the one-and-a-half to two carat band, graded J 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 1242032984. Listed at 14 retailers as of November 2, 2026, with a 126% 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

1.51
Carat
J
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1242032984
Dimensions7.79 × 6.57 × 4.88 mm
L/W Ratio1.19
Girdle conditionFaceted
Top View
7.79 mm6.57 mm1.51 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1242032984
Side View
Table 59.0%CrownGirdle: STK-VTKPavilionCulet: NDepth 62.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $5,133 CAD|Low: $3,978 CAD|High: $10,012 CAD|Avg: $6,064 CAD|-4.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 7, 2026
Retailer 10$4,033 CAD
Retailer 6$4,574 CAD
Retailer 8$4,919 CAD
Retailer 2$4,923 CAD
Retailer 11$5,029 CAD
Retailer 5$5,090 CAD
Retailer 1$5,133 CAD
Retailer 12$6,006 CAD
Retailer 4$6,259 CAD
Retailer 7$6,650 CAD
Retailer 3$8,466 CAD
Retailer 9$9,112 CAD

38 data points across 12 retailers

14 retailers$4,033 CAD to $9,112 CAD

A
Cheapest Retailer
-
$4,033 CAD
A
Retailer 2
-
$4,574 CAD
View
B+
Retailer 3
-
$4,919 CAD
View
A
Retailer 4
-
$4,923 CAD
View
B+
Retailer 5
-
$5,029 CAD
View
Final sale: no returns
B+
Retailer 6
-
$5,090 CAD
View
B+
Retailer 7
-
$5,133 CAD
View
B+
Retailer 8
-
$5,904 CAD
View
B+
Retailer 9
-
$6,006 CAD
View
Retailer 10
-
$6,259 CAD
View
Price last confirmed 34 days ago
B
Retailer 11
-
$6,650 CAD
View
B
Retailer 12
-
$8,466 CAD
View
B
Retailer 13
-
$9,112 CAD
View
Most Expensive
NZ Jewellers
dcac04e0-fe8a-49e0-9bfa-ded47dca4470 · Sep 25
$10,306 CAD
$7,327 USD
View
Price last confirmed 43 days ago
13 more retailers have this diamond
Prices start from $4,033 CADSave up to $5,079 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
1.51ct Heart
$4,033 CAD