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Round|Natural|GIA

1.21ct M SI1 Round Natural Diamond

EX • M/SI1 • GIA 1537184144

Certificate GIA 1537184144

Diamond specifications and retailer prices

From $1,536 CAD
As of November 6, 2026
Save $3,540 CAD (70%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $5,077 CAD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.21ct natural round diamond

This 1.21ct natural round sits in the classic one-carat band, graded M colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1537184144. Listed at 12 retailers as of November 5, 2026, with prices from $1,536 to $5,077, a $3,540 spread on the same certified stone. NZ Jewellers lists it at $5,077. 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

1.21
Carat
M
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 1537184144
Dimensions6.75 × 6.79 × 4.22 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Crystal, Feather, Cloud, Needle
Top View
6.75 mm6.79 mm1.21 ctM / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 1537184144
Side View
Table 57.0%Crown 36°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.4%

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: $2,046 CAD|Low: $1,536 CAD|High: $2,895 CAD|Avg: $2,119 CAD|-1.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 8$1,536 CAD
Retailer 2$1,556 CAD
Retailer 6$1,930 CAD
Retailer 1$2,046 CAD
Retailer 7$2,177 CAD
Retailer 5$2,214 CAD
Retailer 3$2,539 CAD
Retailer 4$2,877 CAD

42 data points across 8 retailers

12 retailers$1,536 CAD to $5,077 CAD

A
Cheapest Retailer
-
$1,536 CAD
A
Retailer 2
-
$1,556 CAD
View
B+
Retailer 3
-
$1,930 CAD
View
A
Retailer 4
-
$2,046 CAD
View
B+
Retailer 5
-
$2,081 CAD
View
Retailer 6
-
$2,081 CAD
View
Price last confirmed 8 days ago
B+
Retailer 7
-
$2,177 CAD
View
B+
Retailer 8
-
$2,214 CAD
View
B+
Retailer 9
-
$2,401 CAD
View
B+
Retailer 10
-
$2,539 CAD
View
B+
Retailer 11
-
$2,877 CAD
View
Most Expensive
C
NZ Jewellers
b749ebb2-c399-4b76-b0fb-19c871a8799a · Nov 5
$5,077 CAD
$3,635 USD
View
11 more retailers have this diamond
Prices start from $1,536 CADSave up to $3,540 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
1.21ct Round
$1,536 CAD