Round|Natural|GIA

1.51ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 7561487212

Certificate GIA 7561487212

Diamond specifications and retailer prices

From $4,575 CAD
As of November 6, 2026
Save $6,258 CAD (58%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $11,420 CAD at NZ Jewellers · As of October 9, 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 7561487212. Listed at 18 retailers as of November 5, 2026, with a 137% 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
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 7561487212
Dimensions7.29 × 7.24 × 4.55 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
7.29 mm7.24 mm1.51 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7561487212
Side View
Table 57.0%Crown 36°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.6%

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: $10,833 CAD|Low: $4,522 CAD|High: $11,420 CAD|Avg: $6,863 CAD|-5.1%
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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
November 6, 2026
Retailer 17$4,575 CAD
Retailer 10$4,930 CAD
Retailer 16$5,088 CAD
Retailer 18$5,470 CAD
Retailer 4$5,503 CAD
Retailer 6$5,740 CAD
Retailer 13$5,746 CAD
Retailer 12$5,757 CAD
Retailer 9$5,850 CAD
Retailer 5$6,038 CAD
Retailer 7$6,382 CAD
Retailer 3$6,568 CAD
Retailer 2$6,771 CAD
Retailer 11$7,032 CAD
Retailer 14$7,586 CAD
Retailer 8$7,768 CAD
Retailer 19$9,343 CAD
Retailer 15$9,877 CAD
NZ Jewellers$10,833 CAD

27 data points across 19 retailers

18 retailers$4,575 CAD to $10,833 CAD

A
Cheapest Retailer
-
$4,575 CAD
Retailer 2
-
$4,930 CAD
View
Price last confirmed 23 days ago
A
Retailer 3
-
$5,088 CAD
View
A
Retailer 4
-
$5,470 CAD
View
A
Retailer 5
-
$5,503 CAD
View
B+
Retailer 6
-
$5,740 CAD
View
Final sale: no returns
B+
Retailer 7
-
$5,746 CAD
View
B+
Retailer 8
-
$5,757 CAD
View
B+
Retailer 9
-
$5,850 CAD
View
B+
Retailer 10
-
$6,038 CAD
View
B+
Retailer 11
-
$6,382 CAD
View
B+
Retailer 12
-
$6,568 CAD
View
B+
Retailer 13
-
$6,771 CAD
View
B
Retailer 14
-
$7,586 CAD
View
B
Retailer 15
-
$9,343 CAD
View
B
Retailer 16
-
$9,877 CAD
View
B
Retailer 17
-
$10,833 CAD
View
Most Expensive
NZ Jewellers
576f1a53-d4c8-45e6-8ec8-5f967e3b2114 · Oct 9
$11,420 CAD
$8,177 USD
View
Price last confirmed 28 days ago
17 more retailers have this diamond
Prices start from $4,575 CADSave up to $6,258 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
$4,575 CAD