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Round|Natural|GIA

1.51ct K I1 Round Natural Diamond

EX • K/I1 • GIA 1515161633

Certificate GIA 1515161633

Diamond specifications and retailer prices

From $4,218 CAD
As of November 6, 2026
Save $5,670 CAD (57%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $9,888 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 I1 clarity (included), with a top-tier cut grade and certified by GIA 1515161633. Listed at 8 retailers as of November 5, 2026, with prices from $4,218 to $9,888, a $5,670 spread on the same certified stone. NZ Jewellers lists it at $9,888. 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
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 1515161633
Dimensions7.27 × 7.31 × 4.56 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Crystal, Needle
Top View
7.27 mm7.31 mm1.51 ctK / I1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1515161633
Side View
Table 58.0%Crown 35.5°Girdle: Slightly ThickPavilion 41.2°Culet: NoneDepth 62.6%

Caratlytics Score

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

Price History

Last verified: Nov 6
Current: $9,888 CAD|Low: $2,912 CAD|High: $9,888 CAD|Avg: $5,620 CAD
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
November 5, 2026
Retailer 5$2,912 CAD
Retailer 4$3,089 CAD
Retailer 6$4,218 CAD
Retailer 7$4,564 CAD
Retailer 9$5,142 CAD
Retailer 11$5,142 CAD
Retailer 8$5,339 CAD
Retailer 3$5,429 CAD
Retailer 10$5,933 CAD
Retailer 2$6,373 CAD
Retailer 12$6,753 CAD
Retailer 13$8,036 CAD
NZ Jewellers$9,888 CAD

20 data points across 13 retailers

8 retailers$4,218 CAD to $9,888 CAD

B+
Cheapest Retailer
-
$4,218 CAD
B+
Retailer 2
-
$4,564 CAD
View
B+
Retailer 3
-
$5,142 CAD
View
Retailer 4
-
$5,142 CAD
View
Price last confirmed 8 days ago
B+
Retailer 5
-
$5,339 CAD
View
B
Retailer 6
-
$5,933 CAD
View
B
Retailer 7
-
$6,373 CAD
View
Most Expensive
C
NZ Jewellers
31a47f8d-1050-4502-8e5a-31aca8388e9a · Nov 5
$9,888 CAD
$7,080 USD
View
7 more retailers have this diamond
Prices start from $4,218 CADSave up to $5,670 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
$4,218 CAD