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Heart|Natural|GIA

1.51ct I SI1 Heart Natural Diamond

EX • I/SI1 • GIA 6555506948

Certificate GIA 6555506948

Diamond specifications and retailer prices

From $4,896 CAD
As of November 6, 2026
Save $6,562 CAD (57%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $11,458 CAD at NZ Jewellers · As of November 5, 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 I 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 6555506948. Listed at 18 retailers as of November 5, 2026, with prices from $4,896 to $11,458, a $6,562 spread on the same certified stone. NZ Jewellers lists it at $11,458. 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
I
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6555506948
Dimensions7.00 × 7.88 × 4.58 mm
L/W Ratio1.13
Girdle conditionFaceted
Top View
7.00 mm7.88 mm1.51 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6555506948
Side View
Table 59.0%CrownGirdle: MED-THKPavilionCulet: NDepth 58.2%

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: $11,458 CAD|Low: $4,825 CAD|High: $11,696 CAD|Avg: $6,930 CAD|-2.0%
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 6, 2026
Retailer 16$4,896 CAD
Retailer 4$4,917 CAD
Retailer 14$5,228 CAD
Retailer 6$5,491 CAD
Retailer 8$5,498 CAD
Retailer 3$5,500 CAD
Retailer 2$5,565 CAD
Retailer 9$5,662 CAD
Retailer 15$6,091 CAD
Retailer 11$6,112 CAD
Retailer 10$6,206 CAD
Retailer 5$6,306 CAD
Retailer 12$8,023 CAD
Retailer 17$8,341 CAD
Retailer 7$10,205 CAD
Retailer 13$10,445 CAD
NZ Jewellers$11,458 CAD

21 data points across 17 retailers

18 retailers$4,896 CAD to $11,458 CAD

A
Cheapest Retailer
-
$4,896 CAD
A
Retailer 2
-
$4,917 CAD
View
A
Retailer 3
-
$5,228 CAD
View
A
Retailer 4
-
$5,491 CAD
View
A
Retailer 5
-
$5,498 CAD
View
A
Retailer 6
-
$5,500 CAD
View
Final sale: no returns
A
Retailer 7
-
$5,565 CAD
View
A
Retailer 8
-
$5,662 CAD
View
A
Retailer 9
-
$6,091 CAD
View
A
Retailer 10
-
$6,112 CAD
View
A
Retailer 11
-
$6,206 CAD
View
A
Retailer 12
-
$6,306 CAD
View
Retailer 13
-
$7,088 CAD
View
Price last confirmed 28 days ago
B+
Retailer 14
-
$8,023 CAD
View
B
Retailer 15
-
$8,341 CAD
View
B
Retailer 16
-
$10,205 CAD
View
B
Retailer 17
-
$10,445 CAD
View
Most Expensive
B
NZ Jewellers
28ec3ddb-0863-4b50-998a-7b353d1e8e5b · Nov 5
$11,458 CAD
$8,146 USD
View
17 more retailers have this diamond
Prices start from $4,896 CADSave up to $6,562 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
$4,896 CAD