Round|Natural|GIA

1.50ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 6491906860

Certificate GIA 6491906860

Diamond specifications and retailer prices

From $6,524 CAD
$4,670 USD
As of October 25, 2026
Save $6,000 CAD (48%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $14,198 CAD at NZ Jewellers · As of September 28, 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 J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6491906860. Listed at 21 retailers as of October 25, 2026, with a 92% 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

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle34°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 6491906860
Dimensions7.37 × 7.35 × 4.51 mm
L/W Ratio1.00
Star length50%
Lower girdle75%
Top View
7.37 mm7.35 mm1.50 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6491906860
Side View
Table 56.0%Crown 34°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 61.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 25
Current: $10,170 CAD|Low: $5,916 CAD|High: $12,658 CAD|Avg: $9,051 CAD|-0.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 30, 2026
Retailer 6$6,524 CAD
Retailer 7$7,099 CAD
Retailer 2$8,090 CAD
Retailer 8$8,436 CAD
Retailer 3$8,752 CAD
Retailer 1$10,170 CAD
Retailer 4$10,337 CAD
Retailer 5$12,523 CAD

41 data points across 8 retailers

21 retailers$6,524 CAD to $12,523 CAD

B+
Cheapest Retailer
-
$6,524 CAD
$4,670 USD
B+
Retailer 2
-
$6,707 CAD
$4,801 USD
View
B+
Retailer 3
-
$6,887 CAD
$4,930 USD
View
B
Retailer 4
-
$7,099 CAD
$5,082 USD
View
Final sale: no returns
B+
Retailer 5
-
$7,201 CAD
$5,155 USD
View
B
Retailer 6
-
$7,407 CAD
$5,303 USD
View
B
Retailer 7
-
$7,601 CAD
$5,441 USD
View
Retailer 8
-
$7,690 CAD
$5,505 USD
View
Price last confirmed 29 days ago
Retailer 9
-
$7,690 CAD
$5,505 USD
View
Price last confirmed 31 days ago
B+
Retailer 10
-
$8,090 CAD
£4,560 GBP
View
Retailer 11
-
$8,436 CAD
A$9,291 AUD
View
Price last confirmed 27 days ago
B
Retailer 12
-
$8,591 CAD
$6,150 USD
View
B
Retailer 13
-
$8,591 CAD
$6,150 USD
View
B
Retailer 14
-
$8,752 CAD
€5,967 EUR
View
Retailer 15
-
$8,873 CAD
$6,352 USD
View
Price last confirmed 31 days ago
B
Retailer 16
-
$8,884 CAD
$6,360 USD
View
Retailer 17
-
$9,361 CAD
$6,701 USD
View
Price last confirmed 7 days ago
B
Retailer 18
-
$10,170 CAD
£5,733 GBP
View
B
Retailer 19
-
$10,337 CAD
ZAR 119,547 ZAR
View
B
Retailer 20
-
$12,523 CAD
£7,059 GBP
View
Most Expensive
NZ Jewellers
83772850-e0ac-4468-a4d2-bf82afc77711 · Sep 28
$14,198 CAD
$10,164 USD
View
Price last confirmed 33 days ago
20 more retailers have this diamond
Prices start from $6,524 CADSave up to $6,000 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.

B+
1.50ct Round
$6,524 CAD