Round|Natural|GIA

1.51ct M SI2 Round Natural Diamond

EX • M/SI2 • GIA 7433921001

Certificate GIA 7433921001

Diamond specifications and retailer prices

From $4,279 CAD
As of November 5, 2026
Save $1,320 CAD (24%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $8,399 CAD at NZ Jewellers · As of September 28, 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 7433921001. Listed at 10 retailers as of November 5, 2026, with a 31% 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
M
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 7433921001
Dimensions7.31 × 7.33 × 4.58 mm
L/W Ratio1.00
Star length50%
Lower girdle80%
Top View
7.31 mm7.33 mm1.51 ctM / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7433921001
Side View
Table 57.0%Crown 36°Girdle: MediumPavilion 41°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 5
Current: $5,599 CAD|Low: $3,725 CAD|High: $5,736 CAD|Avg: $4,786 CAD|+2.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 5, 2026
Retailer 7$3,725 CAD
Retailer 3$4,279 CAD
Retailer 4$4,345 CAD
Retailer 2$4,821 CAD
Retailer 6$5,022 CAD
Retailer 1$5,599 CAD
Retailer 5$5,736 CAD

19 data points across 7 retailers

10 retailers$4,279 CAD to $5,599 CAD

B+
Cheapest Retailer
-
$4,279 CAD
B+
Retailer 2
-
$4,345 CAD
View
Retailer 3
-
$4,821 CAD
View
Price last confirmed 8 days ago
Retailer 4
-
$4,821 CAD
View
Price last confirmed 29 days ago
B
Retailer 5
-
$5,007 CAD
View
Retailer 6
-
$5,007 CAD
View
Price last confirmed 38 days ago
B
Retailer 7
-
$5,022 CAD
View
Retailer 8
-
$5,563 CAD
View
Price last confirmed 28 days ago
B
Retailer 9
-
$5,599 CAD
View
Most Expensive
NZ Jewellers
bbf1c960-8d88-46a8-8642-490031bdc772 · Sep 28
$8,399 CAD
$6,014 USD
View
Price last confirmed 39 days ago
9 more retailers have this diamond
Prices start from $4,279 CADSave up to $1,320 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
$4,279 CAD