Radiant|Natural|GIA

1.50ct J SI1 Radiant Natural Diamond

EX • J/SI1 • GIA 6551029978

Certificate GIA 6551029978

Diamond specifications and retailer prices

From $4,141 CAD
As of November 6, 2026
Save $4,908 CAD (54%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $9,641 CAD at NZ Jewellers · As of October 17, 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 6551029978. Listed at 21 retailers as of November 6, 2026, with a 119% 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
J
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6551029978
Dimensions7.43 × 5.72 × 3.99 mm
L/W Ratio1.30
Top View
7.43 mm5.72 mm1.50 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6551029978
Side View
Table 67.0%CrownGirdle: ThickPavilionCulet: NoneDepth 69.8%

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: $9,641 CAD|Low: $4,141 CAD|High: $9,641 CAD|Avg: $6,049 CAD
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
November 7, 2026
Retailer 5$4,141 CAD
Retailer 11$4,380 CAD
Retailer 6$5,022 CAD
Retailer 16$5,036 CAD
Retailer 12$5,206 CAD
Retailer 13$5,228 CAD
Retailer 9$5,233 CAD
Retailer 10$5,510 CAD
Retailer 8$5,534 CAD
Retailer 3$5,646 CAD
Retailer 4$5,697 CAD
Retailer 14$6,334 CAD
Retailer 7$6,385 CAD
Retailer 15$6,641 CAD
Retailer 2$9,049 CAD
NZ Jewellers$9,641 CAD

22 data points across 16 retailers

21 retailers$4,141 CAD to $9,049 CAD

A
Cheapest Retailer
-
$4,141 CAD
A
Retailer 2
-
$4,380 CAD
View
A
Retailer 3
-
$5,022 CAD
View
Final sale: no returns
A
Retailer 4
-
$5,036 CAD
View
A
Retailer 5
-
$5,206 CAD
View
A
Retailer 6
-
$5,228 CAD
View
A
Retailer 7
-
$5,233 CAD
View
B+
Retailer 8
-
$5,254 CAD
View
B+
Retailer 9
-
$5,510 CAD
View
Retailer 10
-
$5,534 CAD
View
Price last confirmed 20 days ago
B+
Retailer 11
-
$5,556 CAD
View
B+
Retailer 12
-
$5,646 CAD
View
Retailer 13
-
$5,683 CAD
View
Price last confirmed 22 days ago
Retailer 14
-
$5,683 CAD
View
Price last confirmed 22 days ago
B+
Retailer 15
-
$5,697 CAD
View
Retailer 16
-
$6,131 CAD
View
Price last confirmed 34 days ago
B+
Retailer 17
-
$6,334 CAD
View
Retailer 18
-
$6,385 CAD
View
Price last confirmed 19 days ago
B+
Retailer 19
-
$6,641 CAD
View
B
Retailer 20
-
$9,049 CAD
View
Most Expensive
NZ Jewellers
ac931774-ade8-4784-b7b9-72a207a8cfc0 · Oct 17
$9,641 CAD
$6,854 USD
View
Price last confirmed 20 days ago
20 more retailers have this diamond
Prices start from $4,141 CADSave up to $4,908 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
$4,141 CAD