Round|Natural|GIA

1.51ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 1533036143

Certificate GIA 1533036143

Diamond specifications and retailer prices

From $6,026 CAD
$4,314 USD
As of October 30, 2026
Save $6,186 CAD (51%) vs most expensive(unlock to see where)
28 retailers carry this diamond
Most expensive: $12,756 CAD at NZ Jewellers · As of September 26, 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 1533036143. Listed at 28 retailers as of October 29, 2026, with a 103% 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 angle33.5°
Pavilion angle41.8°
OriginNatural
Grading LabGIA
CertificateGIA 1533036143
Dimensions7.32 × 7.37 × 4.56 mm
L/W Ratio1.01
Girdle conditionSlightly Thick
Key to symbols
Knot, Feather, Natural
Top View
7.32 mm7.37 mm1.51 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1533036143
Side View
Table 59.0%Crown 33.5°Girdle: THN-STKPavilion 41.8°Culet: NoneDepth 62.0%

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 30
Current: $8,632 CAD|Low: $6,026 CAD|High: $12,294 CAD|Avg: $8,200 CAD|+3.9%
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
October 30, 2026
Retailer 12$6,026 CAD
Retailer 13$6,378 CAD
Retailer 9$6,503 CAD
Retailer 11$6,910 CAD
Retailer 3$7,314 CAD
Retailer 7$7,393 CAD
Retailer 4$7,729 CAD
Retailer 2$8,356 CAD
Retailer 5$8,416 CAD
Retailer 1$8,632 CAD
Retailer 6$9,138 CAD
Retailer 10$9,288 CAD
Retailer 8$12,213 CAD

29 data points across 13 retailers

28 retailers$6,026 CAD to $12,213 CAD

B+
Cheapest Retailer
-
$6,026 CAD
$4,314 USD
B+
Retailer 2
-
$6,378 CAD
$4,566 USD
View
Final sale: no returns
B+
Retailer 3
-
$6,503 CAD
$4,655 USD
View
B+
Retailer 4
-
$6,848 CAD
$4,902 USD
View
Retailer 5
-
$6,910 CAD
$4,947 USD
View
Price last confirmed 43 days ago
B+
Retailer 6
-
$6,910 CAD
$4,947 USD
View
Retailer 7
-
$6,910 CAD
$4,947 USD
View
Price last confirmed 29 days ago
Retailer 8
-
$6,910 CAD
$4,947 USD
View
Price last confirmed 31 days ago
B
Retailer 9
-
$7,314 CAD
$5,236 USD
View
Retailer 10
-
$7,314 CAD
$5,236 USD
View
Price last confirmed 25 days ago
B+
Retailer 11
-
$7,393 CAD
£4,167 GBP
View
B
Retailer 12
-
$7,445 CAD
$5,330 USD
View
B
Retailer 13
-
$7,445 CAD
$5,330 USD
View
B
Retailer 14
-
$7,697 CAD
$5,510 USD
View
Retailer 15
-
$7,729 CAD
A$8,513 AUD
View
Price last confirmed 27 days ago
B+
Retailer 16
-
$7,831 CAD
$5,606 USD
View
Retailer 17
-
$7,974 CAD
$5,708 USD
View
Price last confirmed 39 days ago
Retailer 18
-
$7,974 CAD
$5,708 USD
View
Price last confirmed 10 days ago
Retailer 19
-
$7,974 CAD
$5,708 USD
View
Price last confirmed 32 days ago
B
Retailer 20
-
$7,974 CAD
$5,708 USD
View
B
Retailer 21
-
$8,356 CAD
£4,710 GBP
View
Retailer 22
-
$8,416 CAD
$6,025 USD
View
Price last confirmed 26 days ago
B
Retailer 23
-
$8,632 CAD
€5,885 EUR
View
B
Retailer 24
-
$9,138 CAD
£5,151 GBP
View
B
Retailer 25
-
$9,288 CAD
ZAR 107,414 ZAR
View
B
Retailer 26
-
$12,213 CAD
£6,884 GBP
View
Retailer 27
-
$12,756 CAD
$9,132 USD
View
Price last confirmed 41 days ago
Most Expensive
NZ Jewellers
85863596-3e43-482f-b9f2-4c5df5b95ce2 · Sep 26
$12,756 CAD
$9,132 USD
View
Price last confirmed 34 days ago
27 more retailers have this diamond
Prices start from $6,026 CADSave up to $6,186 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+
1.51ct Round
$6,026 CAD