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Heart|Natural|GIA

1.59ct K SI1 Heart Natural Diamond

EX • K/SI1 • GIA 2557582242

Certificate GIA 2557582242

Diamond specifications and retailer prices

From $3,848 CAD
As of November 1, 2026
Save $4,768 CAD (55%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $9,699 CAD at NZ Jewellers · As of September 25, 2026
View at NZ Jewellers

About this 1.59ct natural heart diamond

This 1.59ct natural heart sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2557582242. Listed at 14 retailers as of November 1, 2026, with a 124% 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

1.59
Carat
K
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2557582242
Dimensions6.97 × 8.13 × 4.78 mm
L/W Ratio1.17
Girdle conditionFaceted
Top View
6.97 mm8.13 mm1.59 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2557582242
Side View
Table 58.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 58.8%

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: $4,930 CAD|Low: $3,834 CAD|High: $9,420 CAD|Avg: $5,433 CAD|-3.4%
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 6, 2026
Retailer 11$3,848 CAD
Retailer 9$3,888 CAD
Retailer 12$4,133 CAD
Retailer 7$4,204 CAD
Retailer 3$4,321 CAD
Retailer 4$4,522 CAD
Retailer 8$4,797 CAD
Retailer 1$4,930 CAD
Retailer 10$5,309 CAD
Retailer 5$6,307 CAD
Retailer 2$7,963 CAD
Retailer 6$8,617 CAD

39 data points across 12 retailers

14 retailers$3,848 CAD to $8,617 CAD

A
Cheapest Retailer
-
$3,848 CAD
A
Retailer 2
-
$3,888 CAD
View
A
Retailer 3
-
$4,133 CAD
View
A
Retailer 4
-
$4,204 CAD
View
A
Retailer 5
-
$4,321 CAD
View
Final sale: no returns
A
Retailer 6
-
$4,522 CAD
View
A
Retailer 7
-
$4,797 CAD
View
A
Retailer 8
-
$4,930 CAD
View
B+
Retailer 9
-
$5,309 CAD
View
B+
Retailer 10
-
$5,446 CAD
View
B+
Retailer 11
-
$6,307 CAD
View
B
Retailer 12
-
$7,963 CAD
View
B
Retailer 13
-
$8,617 CAD
View
Most Expensive
NZ Jewellers
a4e07a9e-3e48-4ff0-9393-b25ce73f04c1 · Sep 25
$9,699 CAD
$6,895 USD
View
Price last confirmed 42 days ago
13 more retailers have this diamond
Prices start from $3,848 CADSave up to $4,768 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
1.59ct Heart
$3,848 CAD