Round|Natural|GIA

1.50ct D SI1 Round Natural Diamond

EX • D/SI1 • GIA 6512578382

Certificate GIA 6512578382

Diamond specifications and retailer prices

From $9,564 CAD
As of November 6, 2026
Save $9,180 CAD (49%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $23,360 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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6512578382. Listed at 19 retailers as of November 4, 2026, with a 96% 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
D
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle41.8°
OriginNatural
Grading LabGIA
CertificateGIA 6512578382
Dimensions7.35 × 7.30 × 4.50 mm
L/W Ratio1.01
Top View
7.35 mm7.30 mm1.50 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6512578382
Side View
Table 61.0%Crown 33.5°Girdle: Slightly ThickPavilion 41.8°Culet: NoneDepth 61.6%

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 6
Current: $9,564 CAD|Low: $9,564 CAD|High: $19,087 CAD|Avg: $13,073 CAD|-5.1%
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
Retailer 14
Retailer 15
Retailer 16
November 6, 2026
Retailer 1$9,564 CAD
Retailer 16$10,293 CAD
Retailer 14$10,477 CAD
Retailer 3$11,107 CAD
Retailer 10$11,252 CAD
Retailer 4$11,690 CAD
Retailer 2$11,808 CAD
Retailer 9$12,311 CAD
Retailer 8$12,391 CAD
Retailer 6$12,446 CAD
Retailer 7$12,919 CAD
Retailer 13$13,357 CAD
Retailer 12$14,026 CAD
Retailer 5$14,375 CAD
Retailer 11$15,782 CAD
Retailer 15$18,744 CAD

28 data points across 16 retailers

19 retailers$9,564 CAD to $18,744 CAD

A
Cheapest Retailer
-
$9,564 CAD
A
Retailer 2
-
$10,293 CAD
View
A
Retailer 3
-
$10,477 CAD
View
Retailer 4
-
$10,761 CAD
View
Price last confirmed 25 days ago
Retailer 5
-
$11,107 CAD
View
Price last confirmed 3 days ago
A
Retailer 6
-
$11,252 CAD
View
B+
Retailer 7
-
$11,690 CAD
View
B+
Retailer 8
-
$11,808 CAD
View
B+
Retailer 9
-
$12,311 CAD
View
Retailer 10
-
$12,391 CAD
View
Price last confirmed 14 days ago
B+
Retailer 11
-
$12,446 CAD
View
Final sale: no returns
B+
Retailer 12
-
$12,919 CAD
View
B+
Retailer 13
-
$13,333 CAD
View
B+
Retailer 14
-
$13,357 CAD
View
B+
Retailer 15
-
$14,026 CAD
View
B
Retailer 16
-
$14,375 CAD
View
B+
Retailer 17
-
$15,782 CAD
View
B
Retailer 18
-
$18,744 CAD
View
Most Expensive
NZ Jewellers
a1d63ee0-7b43-4040-956c-98c5f1f68ef7 · Sep 25
$23,360 CAD
$16,726 USD
View
Price last confirmed 41 days ago
18 more retailers have this diamond
Prices start from $9,564 CADSave up to $9,180 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
$9,564 CAD