Round|Natural|GIA

1.50ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 6435526632

Certificate GIA 6435526632

Diamond specifications and retailer prices

From $4,357 CAD
As of November 4, 2026
Save $5,126 CAD (54%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $10,838 CAD at NZ Jewellers · As of September 25, 2026
View at NZ Jewellers

About this 1.5ct natural round diamond

This 1.5ct natural round 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 and certified by GIA 6435526632. Listed at 16 retailers as of November 1, 2026, with a 118% 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

1.50
Carat
K
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 6435526632
Dimensions7.33 × 7.29 × 4.56 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Top View
7.33 mm7.29 mm1.50 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6435526632
Side View
Table 57.0%Crown 36°Girdle: MediumPavilion 41°Culet: NoneDepth 62.4%

Caratlytics Score

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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 4
Current: $5,708 CAD|Low: $4,357 CAD|High: $10,014 CAD|Avg: $5,672 CAD|-7.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 6, 2026
Retailer 12$4,357 CAD
Retailer 8$4,413 CAD
Retailer 4$4,430 CAD
Retailer 13$4,560 CAD
Retailer 2$4,769 CAD
Retailer 3$4,825 CAD
Retailer 10$4,930 CAD
Retailer 11$5,138 CAD
Retailer 1$5,708 CAD
Retailer 7$6,201 CAD
Retailer 5$6,419 CAD
Retailer 6$6,922 CAD
Retailer 9$9,483 CAD

43 data points across 13 retailers

16 retailers$4,357 CAD to $9,483 CAD

A
Cheapest Retailer
-
$4,357 CAD
A
Retailer 2
-
$4,413 CAD
View
A
Retailer 3
-
$4,430 CAD
View
A
Retailer 4
-
$4,560 CAD
View
A
Retailer 5
-
$4,769 CAD
View
A
Retailer 6
-
$4,825 CAD
View
A
Retailer 7
-
$4,930 CAD
View
Retailer 8
-
$5,138 CAD
View
Price last confirmed 13 days ago
Retailer 9
-
$5,635 CAD
View
Price last confirmed 45 days ago
B+
Retailer 10
-
$5,708 CAD
View
B+
Retailer 11
-
$6,201 CAD
View
Retailer 12
-
$6,419 CAD
View
Price last confirmed 14 days ago
Retailer 13
-
$6,503 CAD
View
Price last confirmed 45 days ago
B+
Retailer 14
-
$6,922 CAD
View
B
Retailer 15
-
$9,483 CAD
View
Most Expensive
NZ Jewellers
2bf72783-4f62-4dcf-9291-b59d4f1f36b8 · Sep 25
$10,838 CAD
$7,760 USD
View
Price last confirmed 42 days ago
15 more retailers have this diamond
Prices start from $4,357 CADSave up to $5,126 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
1.50ct Round
$4,357 CAD