Radiant|Natural|GIA

1.50ct J SI1 Radiant Natural Diamond

EX • J/SI1 • GIA 1235223535

Certificate GIA 1235223535

Diamond specifications and retailer prices

From $5,017 CAD
As of November 6, 2026
Save $6,709 CAD (57%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: $11,727 CAD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.5ct natural radiant diamond

This 1.5ct natural radiant 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 1235223535. Listed at 26 retailers as of November 5, 2026, with prices from $5,017 to $11,727, a $6,709 spread on the same certified stone. NZ Jewellers lists it at $11,727. 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
J
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1235223535
Dimensions7.09 × 5.82 × 4.05 mm
L/W Ratio1.22
Culet sizeNone
Key to symbols
Feather, Cloud, Crystal, Needle
Top View
7.09 mm5.82 mm1.50 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1235223535
Side View
Table 67.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 69.6%

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 6
Current: $10,662 CAD|Low: $4,870 CAD|High: $10,848 CAD|Avg: $6,994 CAD|-1.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 7, 2026
Retailer 2$5,240 CAD
Retailer 3$5,628 CAD
Retailer 5$6,098 CAD
Retailer 6$6,098 CAD
Retailer 8$6,197 CAD
Retailer 11$6,581 CAD
Retailer 7$6,626 CAD
Retailer 4$6,784 CAD
Retailer 12$6,991 CAD
Retailer 13$6,991 CAD
Retailer 14$7,230 CAD
Retailer 9$7,573 CAD
Retailer 10$8,212 CAD
Retailer 1$10,662 CAD

43 data points across 14 retailers

26 retailers$5,017 CAD to $11,727 CAD

A
Cheapest Retailer
-
$5,017 CAD
A
Retailer 2
-
$5,240 CAD
View
B+
Retailer 3
-
$5,313 CAD
View
B+
Retailer 4
-
$5,366 CAD
View
B+
Retailer 5
-
$5,377 CAD
View
B+
Retailer 6
-
$5,569 CAD
View
B+
Retailer 7
-
$5,628 CAD
View
Final sale: no returns
B+
Retailer 8
-
$5,728 CAD
View
B+
Retailer 9
-
$5,788 CAD
View
Retailer 10
-
$6,098 CAD
View
Price last confirmed 9 days ago
B+
Retailer 11
-
$6,098 CAD
View
B+
Retailer 12
-
$6,098 CAD
View
B+
Retailer 13
-
$6,197 CAD
View
B+
Retailer 14
-
$6,581 CAD
View
B+
Retailer 15
-
$6,626 CAD
View
Retailer 16
-
$6,784 CAD
View
Price last confirmed 29 days ago
B
Retailer 17
-
$6,991 CAD
View
B
Retailer 18
-
$6,991 CAD
View
B
Retailer 19
-
$6,992 CAD
View
B
Retailer 20
-
$7,036 CAD
View
B
Retailer 21
-
$7,230 CAD
View
Retailer 22
-
$7,432 CAD
View
Price last confirmed 15 days ago
B+
Retailer 23
-
$7,573 CAD
View
B
Retailer 24
-
$8,212 CAD
View
B
Retailer 25
-
$10,662 CAD
View
Most Expensive
B
NZ Jewellers
5656a498-0476-440e-ad80-96e46112e2e9 · Nov 5
$11,727 CAD
$8,337 USD
View
25 more retailers have this diamond
Prices start from $5,017 CADSave up to $6,709 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 Radiant
$5,017 CAD