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Round|Natural|GIA

1.21ct M SI1 Round Natural Diamond

EX • M/SI1 • GIA 2556636452

Certificate GIA 2556636452

Diamond specifications and retailer prices

From $1,888 CAD
As of November 4, 2026
Save $3,082 CAD (62%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $4,970 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 2556636452. Listed at 11 retailers as of November 4, 2026, with prices from $1,888 to $4,970, a $3,082 spread on the same certified stone. NZ Jewellers lists it at $4,970. 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
FluorescenceNone
Crown angle31.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 2556636452
Dimensions6.93 × 6.88 × 4.13 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Twinning Wisp
Top View
6.93 mm6.88 mm1.21 ctM / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2556636452
Side View
Table 59.0%Crown 31.5°Girdle: Slightly ThickPavilion 41°Culet: NoneDepth 59.8%

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 4
Current: $4,970 CAD|Low: $1,888 CAD|High: $5,077 CAD|Avg: $2,451 CAD|-2.1%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 6$1,888 CAD
Retailer 2$2,003 CAD
Retailer 11$2,015 CAD
Retailer 7$2,038 CAD
Retailer 9$2,038 CAD
Retailer 8$2,131 CAD
Retailer 10$2,172 CAD
Retailer 3$2,352 CAD
Retailer 5$2,486 CAD
Retailer 4$2,813 CAD
NZ Jewellers$4,970 CAD

43 data points across 11 retailers

11 retailers$1,888 CAD to $4,970 CAD

A
Cheapest Retailer
-
$1,888 CAD
A
Retailer 2
-
$2,003 CAD
View
A
Retailer 3
-
$2,015 CAD
View
Retailer 4
-
$2,038 CAD
View
Price last confirmed 8 days ago
A
Retailer 5
-
$2,038 CAD
View
A
Retailer 6
-
$2,131 CAD
View
A
Retailer 7
-
$2,172 CAD
View
B+
Retailer 8
-
$2,352 CAD
View
B+
Retailer 9
-
$2,486 CAD
View
B+
Retailer 10
-
$2,813 CAD
View
Most Expensive
B
NZ Jewellers
ae8f5be1-e745-4e7b-8d9d-eb4b15a6ff4c · Nov 5
$4,970 CAD
$3,559 USD
View
10 more retailers have this diamond
Prices start from $1,888 CADSave up to $3,082 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
$1,888 CAD