Round|Natural|GIA

1.21ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 3515861632

Certificate GIA 3515861632

Diamond specifications and retailer prices

From $5,938 CAD
As of November 5, 2026
Save $1,029 CAD (15%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $11,303 CAD at NZ Jewellers · As of October 17, 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 3515861632. Listed at 19 retailers as of November 2, 2026, with a relatively tight 17% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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
H
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle33.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 3515861632
Dimensions6.95 × 6.92 × 4.16 mm
L/W Ratio1.00
Star length50%
Lower girdle75%
Top View
6.95 mm6.92 mm1.21 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 3515861632
Side View
Table 59.0%Crown 33.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 60.0%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $6,968 CAD|Low: $5,172 CAD|High: $10,456 CAD|Avg: $6,671 CAD|-1.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 2, 2026
Retailer 13$5,172 CAD
Retailer 14$5,251 CAD
Retailer 11$5,258 CAD
Retailer 8$5,586 CAD
Retailer 6$5,852 CAD
Retailer 2$5,938 CAD
Retailer 3$6,166 CAD
Retailer 9$6,278 CAD
Retailer 7$6,409 CAD
Retailer 5$6,539 CAD
Retailer 4$6,852 CAD
Retailer 1$6,968 CAD
Retailer 12$7,899 CAD
Retailer 10$10,388 CAD

36 data points across 14 retailers

19 retailers$5,938 CAD to $6,968 CAD

Retailer 1
-
$5,172 CAD
Price last confirmed 7 days ago
Retailer 2
-
$5,251 CAD
View
Price last confirmed 8 days ago
Retailer 3
-
$5,258 CAD
View
Price last confirmed 9 days ago
Retailer 4
-
$5,586 CAD
View
Price last confirmed 8 days ago
Retailer 5
-
$5,852 CAD
View
Price last confirmed 7 days ago
B+
Retailer 6
-
$5,938 CAD
View
B
Retailer 7
-
$6,166 CAD
View
Retailer 8
-
$6,278 CAD
View
Price last confirmed 8 days ago
Retailer 9
-
$6,409 CAD
View
Price last confirmed 7 days ago
Retailer 10
-
$6,487 CAD
View
Price last confirmed 19 days ago
Retailer 11
-
$6,487 CAD
View
Price last confirmed 21 days ago
Retailer 12
-
$6,487 CAD
View
Price last confirmed 22 days ago
Retailer 13
-
$6,539 CAD
View
Price last confirmed 28 days ago
B
Retailer 14
-
$6,852 CAD
View
B
Retailer 15
-
$6,968 CAD
View
Retailer 16
-
$7,486 CAD
View
Price last confirmed 19 days ago
Retailer 17
-
$7,899 CAD
View
Price last confirmed 10 days ago
Retailer 18
-
$10,388 CAD
View
Price last confirmed 8 days ago
Most Expensive
NZ Jewellers
cc76e0f9-6f19-4815-a1d1-7f9994dc5d3b · Oct 17
$11,303 CAD
$8,093 USD
View
Price last confirmed 20 days ago
18 more retailers have this diamond
Prices start from $5,938 CADSave up to $1,029 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+
1.21ct Round
$5,938 CAD