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Round|Natural|GIA

1.51ct M SI2 Round Natural Diamond

EX • M/SI2 • GIA 1449322551

Certificate GIA 1449322551

Diamond specifications and retailer prices

From $4,982 CAD
As of November 5, 2026
Save $5,072 CAD (50%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $10,054 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 M colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1449322551. Listed at 11 retailers as of November 5, 2026, with prices from $4,982 to $10,054, a $5,072 spread on the same certified stone. NZ Jewellers lists it at $10,054. 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
M
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle32°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 1449322551
Dimensions7.47 × 7.48 × 4.44 mm
L/W Ratio1.00
Culet sizeNone
Key to symbols
Twinning Wisp
Top View
7.47 mm7.48 mm1.51 ctM / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1449322551
Side View
Table 59.0%Crown 32°Girdle: MED-STKPavilion 41°Culet: NoneDepth 59.4%

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 5
Current: $10,054 CAD|Low: $4,676 CAD|High: $10,054 CAD|Avg: $6,238 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
November 6, 2026
Retailer 3$4,676 CAD
Retailer 12$4,982 CAD
Retailer 10$5,078 CAD
Retailer 6$5,771 CAD
Retailer 7$5,771 CAD
Retailer 8$5,771 CAD
Retailer 11$5,976 CAD
Retailer 5$6,504 CAD
Retailer 9$6,659 CAD
Retailer 4$6,866 CAD
Retailer 2$7,434 CAD
NZ Jewellers$10,054 CAD

38 data points across 12 retailers

11 retailers$4,982 CAD to $10,054 CAD

B+
Cheapest Retailer
-
$4,982 CAD
B+
Retailer 2
-
$5,008 CAD
View
B
Retailer 3
-
$5,078 CAD
View
Retailer 4
-
$5,771 CAD
View
Price last confirmed 8 days ago
B
Retailer 5
-
$5,771 CAD
View
B
Retailer 6
-
$5,771 CAD
View
B
Retailer 7
-
$5,976 CAD
View
B
Retailer 8
-
$6,504 CAD
View
B
Retailer 9
-
$6,659 CAD
View
B
Retailer 10
-
$7,434 CAD
View
Most Expensive
C
NZ Jewellers
114721b4-1935-4c42-9da7-1e9b2b166e50 · Nov 5
$10,054 CAD
$7,199 USD
View
10 more retailers have this diamond
Prices start from $4,982 CADSave up to $5,072 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
$4,982 CAD