Round|Natural|GIA

1.51ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 6535966035

Certificate GIA 6535966035

Diamond specifications and retailer prices

From $5,067 CAD
$3,627 USD
As of October 28, 2026
Save $4,616 CAD (48%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $10,290 CAD at NZ Jewellers · As of October 20, 2026
View at NZ Jewellers

About this 1.51ct natural round diamond

This 1.51ct 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 6535966035. Listed at 19 retailers as of October 28, 2026, with a 91% 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

1.51
Carat
J
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 6535966035
Dimensions7.34 × 7.30 × 4.54 mm
L/W Ratio1.01
Top View
7.34 mm7.30 mm1.51 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6535966035
Side View
Table 59.0%Crown 35.5°Girdle: MED-SLIPavilion 41°Culet: NoneDepth 62.0%

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: Oct 28
Current: $10,290 CAD|Low: $5,067 CAD|High: $10,545 CAD|Avg: $6,658 CAD|-2.4%
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
Retailer 17
October 29, 2026
Retailer 14$5,067 CAD
Retailer 13$5,266 CAD
Retailer 5$5,287 CAD
Retailer 17$5,315 CAD
Retailer 15$5,329 CAD
Retailer 16$5,769 CAD
Retailer 10$5,855 CAD
Retailer 7$5,906 CAD
Retailer 8$5,979 CAD
Retailer 9$5,979 CAD
Retailer 4$6,113 CAD
Retailer 2$6,534 CAD
Retailer 11$6,919 CAD
Retailer 6$6,983 CAD
Retailer 3$7,192 CAD
Retailer 12$9,683 CAD
NZ Jewellers$10,290 CAD

18 data points across 17 retailers

19 retailers$5,067 CAD to $9,683 CAD

A
Cheapest Retailer
-
$5,067 CAD
$3,627 USD
A
Retailer 2
-
$5,266 CAD
$3,770 USD
View
A
Retailer 3
-
$5,287 CAD
$3,785 USD
View
A
Retailer 4
-
$5,315 CAD
$3,805 USD
View
Final sale: no returns
A
Retailer 5
-
$5,329 CAD
$3,815 USD
View
B+
Retailer 6
-
$5,769 CAD
$4,130 USD
View
B+
Retailer 7
-
$5,855 CAD
£3,300 GBP
View
Retailer 8
-
$5,906 CAD
$4,228 USD
View
Price last confirmed 10 days ago
Retailer 9
-
$5,979 CAD
$4,280 USD
View
Price last confirmed 15 days ago
Retailer 10
-
$5,979 CAD
$4,280 USD
View
Price last confirmed 15 days ago
B+
Retailer 11
-
$6,070 CAD
$4,345 USD
View
B+
Retailer 12
-
$6,113 CAD
$4,376 USD
View
B+
Retailer 13
-
$6,534 CAD
€4,455 EUR
View
Retailer 14
-
$6,612 CAD
A$7,282 AUD
View
Price last confirmed 21 days ago
B+
Retailer 15
-
$6,919 CAD
£3,900 GBP
View
Retailer 16
-
$6,983 CAD
$4,999 USD
View
Price last confirmed 10 days ago
B+
Retailer 17
-
$7,192 CAD
ZAR 83,171 ZAR
View
B
Retailer 18
-
$9,683 CAD
£5,458 GBP
View
Most Expensive
NZ Jewellers
0aa1fd7c-629a-41b2-8cb9-a1e3205f0648 · Oct 20
$10,290 CAD
$7,366 USD
View
Price last confirmed 10 days ago
18 more retailers have this diamond
Prices start from $5,067 CADSave up to $4,616 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
1.51ct Round
$5,067 CAD