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Round|Natural|IGI

1.51ct K SI2 Round Natural Diamond

EX • K/SI2 • IGI 648418562

Shape and cutting style on the report: Round brilliant

Certificate IGI 648418562

Diamond specifications and retailer prices

From $2,712 CAD
As of November 6, 2026
Save $5,241 CAD (66%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $7,954 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 K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI 648418562. Listed at 13 retailers as of November 5, 2026, with prices from $2,712 to $7,954, a $5,241 spread on the same certified stone. NZ Jewellers lists it at $7,954. 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 angle33.4°
Pavilion angle40.8°
OriginNatural
Grading LabIGI
CertificateIGI 648418562
Dimensions7.47 × 7.42 × 4.46 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
7.47 mm7.42 mm1.51 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 648418562
Side View
Table 58.0%Crown 33.4°Girdle: MediumPavilion 40.8°Culet: NoneDepth 60.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $2,712 CAD|Low: $2,712 CAD|High: $6,744 CAD|Avg: $4,120 CAD|-2.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 1$2,712 CAD
Retailer 6$3,406 CAD
Retailer 5$3,459 CAD
Retailer 7$3,471 CAD
Retailer 3$4,176 CAD
Retailer 2$5,021 CAD
Retailer 4$6,646 CAD

38 data points across 7 retailers

13 retailers$2,712 CAD to $7,954 CAD

A
Cheapest Retailer
-
$2,712 CAD
B+
Retailer 2
-
$3,406 CAD
View
A
Retailer 3
-
$3,459 CAD
View
B+
Retailer 4
-
$3,471 CAD
View
B+
Retailer 5
-
$3,804 CAD
View
Retailer 6
-
$3,804 CAD
View
Price last confirmed 8 days ago
B+
Retailer 7
-
$3,951 CAD
View
B+
Retailer 8
-
$4,001 CAD
View
A
Retailer 9
-
$4,176 CAD
View
B+
Retailer 10
-
$4,390 CAD
View
B+
Retailer 11
-
$5,021 CAD
View
B+
Retailer 12
-
$6,646 CAD
View
Most Expensive
B
NZ Jewellers
16172003-4e4c-4cee-b131-80db80be7fc9 · Nov 5
$7,954 CAD
$5,695 USD
View
12 more retailers have this diamond
Prices start from $2,712 CADSave up to $5,241 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
$2,712 CAD