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Round|Natural|GIA

1.51ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 6442857890

Certificate GIA 6442857890

Diamond specifications and retailer prices

From $4,220 CAD
HK$23,600 HKD
As of October 31, 2026
Save $5,684 CAD (57%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $9,904 CAD at NZ Jewellers · As of October 30, 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 SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6442857890. Listed at 17 retailers as of October 30, 2026, with prices from $4,220 to $9,904, a $5,684 spread on the same certified stone. NZ Jewellers lists it at $9,904. 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
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32°
Pavilion angle41.8°
OriginNatural
Grading LabGIA
CertificateGIA 6442857890
Dimensions7.47 × 7.44 × 4.53 mm
L/W Ratio1.00
Star length45%
Lower girdle80%
Top View
7.47 mm7.44 mm1.51 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6442857890
Side View
Table 59.0%Crown 32°Girdle: MED-NULPavilion 41.8°Culet: NoneDepth 60.8%

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 31
Current: $9,904 CAD|Low: $4,184 CAD|High: $9,993 CAD|Avg: $6,164 CAD|-0.9%
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
October 31, 2026
Retailer 2$4,220 CAD
Retailer 5$4,854 CAD
Retailer 7$5,015 CAD
Retailer 14$5,247 CAD
Retailer 4$5,329 CAD
Retailer 6$5,685 CAD
Retailer 11$5,685 CAD
Retailer 13$5,685 CAD
Retailer 8$5,779 CAD
Retailer 12$5,891 CAD
Retailer 9$6,433 CAD
Retailer 15$6,493 CAD
Retailer 3$6,560 CAD
Retailer 10$9,559 CAD
NZ Jewellers$9,904 CAD

31 data points across 15 retailers

17 retailers$4,220 CAD to $9,904 CAD

A
Cheapest Retailer
-
$4,220 CAD
HK$23,600 HKD
A
Retailer 2
-
$4,854 CAD
$3,475 USD
View
A
Retailer 3
-
$5,015 CAD
$3,590 USD
View
B+
Retailer 4
-
$5,247 CAD
$3,756 USD
View
Final sale: no returns
A
Retailer 5
-
$5,329 CAD
SGD 5,155 SGD
View
B+
Retailer 6
-
$5,410 CAD
A$5,958 AUD
View
Retailer 7
-
$5,453 CAD
$3,904 USD
View
Price last confirmed 103 days ago
B+
Retailer 8
-
$5,685 CAD
$4,070 USD
View
B+
Retailer 9
-
$5,685 CAD
$4,070 USD
View
B+
Retailer 10
-
$5,685 CAD
$4,070 USD
View
B+
Retailer 11
-
$5,779 CAD
£3,258 GBP
View
B+
Retailer 12
-
$5,891 CAD
$4,217 USD
View
B+
Retailer 13
-
$6,433 CAD
€4,386 EUR
View
B+
Retailer 14
-
$6,493 CAD
£3,660 GBP
View
B+
Retailer 15
-
$6,560 CAD
$4,696 USD
View
B
Retailer 16
-
$9,559 CAD
£5,388 GBP
View
Most Expensive
B
NZ Jewellers
a69f990f-567b-4bf7-a2aa-d4fef9127bd3 · Oct 30
$9,904 CAD
$7,090 USD
View
16 more retailers have this diamond
Prices start from $4,220 CADSave up to $5,684 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
$4,220 CAD