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Heart|Natural|GIA

1.21ct J SI1 Heart Natural Diamond

GD • J/SI1 • GIA 7458197631

Certificate GIA 7458197631

Diamond specifications and retailer prices

From $2,934 CAD
As of November 6, 2026
Save $2,741 CAD (48%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $5,675 CAD at MOH London · As of November 4, 2026
View at MOH London

About this 1.21ct natural heart diamond

This 1.21ct natural heart sits in the classic one-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 7458197631. Listed at 12 retailers as of November 4, 2026, with prices from $2,934 to $5,675, a $2,741 spread on the same certified stone. MOH London lists it at $5,675. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.21
Carat
J
Color
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7458197631
Dimensions6.47 × 5.84 × 3.91 mm
L/W Ratio1.11
Top View
6.47 mm5.84 mm1.21 ctJ / SI1
OriginNatural
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 7458197631
Side View
Table 65.0%CrownGirdle: ThickPavilionCulet: NoneDepth 67.0%

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 6
Current: $5,675 CAD|Low: $2,445 CAD|High: $5,759 CAD|Avg: $3,702 CAD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 7$2,934 CAD
Retailer 2$2,969 CAD
Retailer 9$3,149 CAD
Retailer 6$3,249 CAD
Retailer 5$3,255 CAD
Retailer 4$3,964 CAD
Retailer 3$3,995 CAD
Retailer 8$4,013 CAD
MOH London$5,675 CAD

38 data points across 9 retailers

12 retailers$2,934 CAD to $5,675 CAD

B+
Cheapest Retailer
-
$2,934 CAD
B+
Retailer 2
-
$2,969 CAD
View
Final sale: no returns
B
Retailer 3
-
$3,149 CAD
View
B
Retailer 4
-
$3,249 CAD
View
B
Retailer 5
-
$3,255 CAD
View
B
Retailer 6
-
$3,276 CAD
View
B
Retailer 7
-
$3,443 CAD
View
B
Retailer 8
-
$3,563 CAD
View
B
Retailer 9
-
$3,964 CAD
View
B
Retailer 10
-
$3,995 CAD
View
Retailer 11
-
$4,013 CAD
View
Price last confirmed 33 days ago
Most Expensive
C
MOH London
CA0DCDDA5 · Nov 4
$5,675 CAD
£3,177 GBP
View
11 more retailers have this diamond
Prices start from $2,934 CADSave up to $2,741 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 Heart
$2,934 CAD