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Round|Natural|GIA

1.51ct I SI2 Round Natural Diamond

EX • I/SI2 • GIA 2436486853

Certificate GIA 2436486853

Diamond specifications and retailer prices

From $11,236 CAD
As of November 1, 2026
Save $9,787 CAD (47%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $21,023 CAD at NZ Jewellers · As of November 5, 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2436486853. Listed at 17 retailers as of November 1, 2026, with prices from $11,236 to $21,023, a $9,787 spread on the same certified stone. NZ Jewellers lists it at $21,023. 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
I
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 2436486853
Dimensions7.36 × 7.32 × 4.54 mm
L/W Ratio1.01
Top View
7.36 mm7.32 mm1.51 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2436486853
Side View
Table 55.0%Crown 34°Girdle: THN-THKPavilion 40.6°Culet: NoneDepth 61.8%

Caratlytics Score

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

Price History

Last verified: Nov 1
Current: $21,023 CAD|Low: $11,236 CAD|High: $21,023 CAD|Avg: $15,381 CAD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 5$11,236 CAD
Retailer 7$12,614 CAD
Retailer 2$13,567 CAD
Retailer 9$13,666 CAD
Retailer 6$13,875 CAD
Retailer 3$15,046 CAD
Retailer 8$15,768 CAD
Retailer 4$19,646 CAD
NZ Jewellers$21,023 CAD

42 data points across 9 retailers

17 retailers$11,236 CAD to $21,023 CAD

B+
Cheapest Retailer
-
$11,236 CAD
B+
Retailer 2
-
$11,459 CAD
View
B
Retailer 3
-
$11,811 CAD
View
B
Retailer 4
-
$12,222 CAD
View
Retailer 5
-
$12,614 CAD
View
Price last confirmed 8 days ago
B
Retailer 6
-
$13,567 CAD
View
B
Retailer 7
-
$13,666 CAD
View
B
Retailer 8
-
$13,875 CAD
View
B
Retailer 9
-
$14,532 CAD
View
B
Retailer 10
-
$14,860 CAD
View
B
Retailer 11
-
$14,860 CAD
View
B
Retailer 12
-
$15,046 CAD
View
B
Retailer 13
-
$15,363 CAD
View
B
Retailer 14
-
$15,768 CAD
View
Retailer 15
-
$16,601 CAD
View
Price last confirmed 14 days ago
B
Retailer 16
-
$19,646 CAD
View
Most Expensive
B
NZ Jewellers
0c32f121-0fbc-460c-a3f1-404ed955b21d · Nov 5
$21,023 CAD
$15,053 USD
View
16 more retailers have this diamond
Prices start from $11,236 CADSave up to $9,787 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
$11,236 CAD