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Round|Natural|IGI

1.51ct K I1 Round Natural Diamond

EX • K/I1 • IGI 779666789

Shape and cutting style on the report: Round brilliant

Certificate IGI 779666789

Diamond specifications and retailer prices

From $1,941 CAD
As of November 5, 2026
Save $1,370 CAD (41%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $5,961 CAD at NZ Jewellers · As of October 20, 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 I1 clarity (included), with a top-tier cut grade and certified by IGI 779666789. Listed at 8 retailers as of November 5, 2026, with a 71% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
K
Color
I1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle32°
Pavilion angle41.7°
OriginNatural
Grading LabIGI
CertificateIGI 779666789
Dimensions7.39 × 7.44 × 4.50 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
7.39 mm7.44 mm1.51 ctK / I1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI 779666789
Side View
Table 59.0%Crown 32°Girdle: MED-STKPavilion 41.7°Culet: NoneDepth 60.7%

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 5
Current: $5,961 CAD|Low: $1,941 CAD|High: $5,961 CAD|Avg: $3,135 CAD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 5, 2026
Retailer 3$1,941 CAD
Retailer 5$2,228 CAD
Retailer 4$2,444 CAD
Retailer 6$2,908 CAD
Retailer 2$3,311 CAD
NZ Jewellers$5,961 CAD

41 data points across 6 retailers

8 retailers$1,941 CAD to $3,311 CAD

A
Cheapest Retailer
-
$1,941 CAD
B+
Retailer 2
-
$2,228 CAD
View
Retailer 3
-
$2,444 CAD
View
Price last confirmed 17 days ago
Retailer 4
-
$2,444 CAD
View
Price last confirmed 25 days ago
Retailer 5
-
$2,556 CAD
View
Price last confirmed 22 days ago
Retailer 6
-
$2,820 CAD
View
Price last confirmed 19 days ago
B+
Retailer 7
-
$3,311 CAD
View
Most Expensive
NZ Jewellers
99e1c3c0-fe41-4272-878e-2422cd78c45d · Oct 20
$5,961 CAD
$4,268 USD
View
Price last confirmed 16 days ago
7 more retailers have this diamond
Prices start from $1,941 CADSave up to $1,370 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
$1,941 CAD