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Round|Natural|IGI

1.51ct K SI2 Round Natural Diamond

EX • K/SI2 • IGI 717555550

Shape and cutting style on the report: Round brilliant

Certificate IGI 717555550

Diamond specifications and retailer prices

From $1,486 CAD
As of November 6, 2026
Save $1,848 CAD (55%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $4,452 CAD at NZ Jewellers · As of September 28, 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 K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI 717555550. Listed at 11 retailers as of November 4, 2026, with a 124% 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
K
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.4°
Pavilion angle40.7°
OriginNatural
Grading LabIGI
CertificateIGI 717555550
Dimensions7.27 × 7.22 × 4.60 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
7.27 mm7.22 mm1.51 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 717555550
Side View
Table 56.0%Crown 36.4°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 63.5%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 6
Current: $1,486 CAD|Low: $1,486 CAD|High: $3,384 CAD|Avg: $2,147 CAD|-1.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 1$1,486 CAD
Retailer 4$1,691 CAD
Retailer 6$1,825 CAD
Retailer 5$2,014 CAD
Retailer 2$2,409 CAD
Retailer 3$3,334 CAD

42 data points across 6 retailers

11 retailers$1,486 CAD to $3,334 CAD

A
Cheapest Retailer
-
$1,486 CAD
A
Retailer 2
-
$1,691 CAD
View
Retailer 3
-
$1,825 CAD
View
Price last confirmed 39 days ago
Retailer 4
-
$1,825 CAD
View
Price last confirmed 25 days ago
Retailer 5
-
$1,825 CAD
View
Price last confirmed 29 days ago
Retailer 6
-
$1,909 CAD
View
Price last confirmed 38 days ago
A
Retailer 7
-
$2,014 CAD
View
Retailer 8
-
$2,106 CAD
View
Price last confirmed 38 days ago
A
Retailer 9
-
$2,409 CAD
View
A
Retailer 10
-
$3,334 CAD
View
Most Expensive
NZ Jewellers
593dcbd2-02db-43f1-9a03-0e5bf40204e8 · Sep 28
$4,452 CAD
$3,188 USD
View
Price last confirmed 39 days ago
10 more retailers have this diamond
Prices start from $1,486 CADSave up to $1,848 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
$1,486 CAD