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1.51ct K SI2 Round Natural Diamond

EX • K/SI2 • GIA 6491766711

Shape and cutting style on the report: Round brilliant

Certificate GIA 6491766711

Diamond specifications and retailer prices

From $6,401 CAD
As of November 4, 2026
Save $7,149 CAD (53%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $13,550 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 GIA 6491766711. Listed at 15 retailers as of November 4, 2026, with prices from $6,401 to $13,550, a $7,149 spread on the same certified stone. NZ Jewellers lists it at $13,550. 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 angle34.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6491766711
Dimensions7.34 × 7.31 × 4.56 mm
L/W Ratio1.00
Star length50%
Lower girdle75%
Top View
7.34 mm7.31 mm1.51 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6491766711
Side View
Table 56.0%Crown 34.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.2%

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 4
Current: $8,806 CAD|Low: $6,401 CAD|High: $12,079 CAD|Avg: $8,230 CAD|-0.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 5, 2026
Retailer 9$6,401 CAD
Retailer 5$6,479 CAD
Retailer 7$6,480 CAD
Retailer 8$6,832 CAD
Retailer 2$7,341 CAD
Retailer 3$7,773 CAD
Retailer 1$8,806 CAD
Retailer 6$8,822 CAD
Retailer 10$10,882 CAD
Retailer 4$11,905 CAD

43 data points across 10 retailers

15 retailers$6,401 CAD to $13,550 CAD

B+
Cheapest Retailer
-
$6,401 CAD
B+
Retailer 2
-
$6,479 CAD
View
B+
Retailer 3
-
$6,480 CAD
View
B+
Retailer 4
-
$6,832 CAD
View
B
Retailer 5
-
$7,262 CAD
View
Retailer 6
-
$7,341 CAD
View
Price last confirmed 8 days ago
B
Retailer 7
-
$7,341 CAD
View
B
Retailer 8
-
$7,341 CAD
View
B+
Retailer 9
-
$7,773 CAD
View
B
Retailer 10
-
$8,469 CAD
View
B
Retailer 11
-
$8,806 CAD
View
B
Retailer 12
-
$8,822 CAD
View
Retailer 13
-
$8,937 CAD
View
Price last confirmed 14 days ago
B
Retailer 14
-
$11,905 CAD
View
Most Expensive
B
NZ Jewellers
2ebd30b8-ea8c-4b5d-85d4-042f8b38b488 · Nov 5
$13,550 CAD
$9,702 USD
View
14 more retailers have this diamond
Prices start from $6,401 CADSave up to $7,149 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
$6,401 CAD