Round|Natural|GIA

1.51ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 2546595232

Certificate GIA 2546595232

Diamond specifications and retailer prices

From $4,147 CAD
As of November 6, 2026
Save $5,620 CAD (58%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $9,766 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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2546595232. Listed at 15 retailers as of November 5, 2026, with prices from $4,147 to $9,766, a $5,620 spread on the same certified stone. NZ Jewellers lists it at $9,766. 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
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 2546595232
Dimensions7.25 × 7.30 × 4.57 mm
L/W Ratio1.01
Top View
7.25 mm7.30 mm1.51 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2546595232
Side View
Table 58.0%Crown 36°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.9%

Caratlytics Score

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

Price History

Last verified: Nov 6
Current: $9,766 CAD|Low: $4,112 CAD|High: $9,836 CAD|Avg: $6,042 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
Retailer 14
November 6, 2026
Retailer 11$4,147 CAD
Retailer 4$4,507 CAD
Retailer 5$4,769 CAD
Retailer 12$4,874 CAD
Retailer 3$5,078 CAD
Retailer 13$5,078 CAD
Retailer 14$5,274 CAD
Retailer 7$5,609 CAD
Retailer 6$5,860 CAD
Retailer 9$5,889 CAD
Retailer 2$6,103 CAD
Retailer 8$6,842 CAD
Retailer 10$9,373 CAD
NZ Jewellers$9,766 CAD

38 data points across 14 retailers

15 retailers$4,147 CAD to $9,766 CAD

A
Cheapest Retailer
-
$4,147 CAD
A
Retailer 2
-
$4,507 CAD
View
A
Retailer 3
-
$4,769 CAD
View
A
Retailer 4
-
$4,874 CAD
View
Retailer 5
-
$5,078 CAD
View
Price last confirmed 8 days ago
A
Retailer 6
-
$5,078 CAD
View
B+
Retailer 7
-
$5,274 CAD
View
B+
Retailer 8
-
$5,609 CAD
View
B+
Retailer 9
-
$5,860 CAD
View
B+
Retailer 10
-
$5,889 CAD
View
B+
Retailer 11
-
$6,103 CAD
View
Retailer 12
-
$6,577 CAD
View
Price last confirmed 14 days ago
B+
Retailer 13
-
$6,842 CAD
View
B
Retailer 14
-
$9,373 CAD
View
Most Expensive
B
NZ Jewellers
18b521fa-8fb0-499f-b2fe-e453b0e89815 · Nov 5
$9,766 CAD
$6,993 USD
View
14 more retailers have this diamond
Prices start from $4,147 CADSave up to $5,620 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
$4,147 CAD