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Heart|Natural|GIA

1.21ct I SI1 Heart Natural Diamond

EX • I/SI1 • GIA 5241078543

Certificate GIA 5241078543

Diamond specifications and retailer prices

From $2,664 CAD
As of November 6, 2026
Save $3,511 CAD (57%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $7,430 CAD at NZ Jewellers · As of October 18, 2026
View at NZ Jewellers

About this 1.21ct natural heart diamond

This 1.21ct natural heart sits in the classic one-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5241078543. Listed at 16 retailers as of November 4, 2026, with a 132% 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

1.21
Carat
I
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 5241078543
Dimensions6.53 × 7.44 × 4.31 mm
L/W Ratio1.14
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Needle
Top View
6.53 mm7.44 mm1.21 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 5241078543
Side View
Table 59.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 57.9%

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: $3,428 CAD|Low: $2,646 CAD|High: $6,300 CAD|Avg: $3,764 CAD|-2.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 11$2,664 CAD
Retailer 7$3,114 CAD
Retailer 10$3,260 CAD
Retailer 3$3,313 CAD
Retailer 1$3,428 CAD
Retailer 4$3,692 CAD
Retailer 9$3,730 CAD
Retailer 5$3,739 CAD
Retailer 2$3,981 CAD
Retailer 6$4,313 CAD
Retailer 8$6,175 CAD

43 data points across 11 retailers

16 retailers$2,664 CAD to $6,175 CAD

A
Cheapest Retailer
-
$2,664 CAD
B+
Retailer 2
-
$3,114 CAD
View
B+
Retailer 3
-
$3,260 CAD
View
Final sale: no returns
B+
Retailer 4
-
$3,313 CAD
View
B+
Retailer 5
-
$3,428 CAD
View
Retailer 6
-
$3,554 CAD
View
Price last confirmed 19 days ago
Retailer 7
-
$3,554 CAD
View
Price last confirmed 21 days ago
B+
Retailer 8
-
$3,692 CAD
View
Retailer 9
-
$3,718 CAD
View
Price last confirmed 21 days ago
B+
Retailer 10
-
$3,730 CAD
View
B+
Retailer 11
-
$3,739 CAD
View
Retailer 12
-
$3,981 CAD
View
Price last confirmed 30 days ago
Retailer 13
-
$4,100 CAD
View
Price last confirmed 18 days ago
B+
Retailer 14
-
$4,313 CAD
View
B
Retailer 15
-
$6,175 CAD
View
Most Expensive
NZ Jewellers
b8ff14db-c968-4b36-b67a-db21493df5da · Oct 18
$7,430 CAD
$5,282 USD
View
Price last confirmed 19 days ago
15 more retailers have this diamond
Prices start from $2,664 CADSave up to $3,511 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 Heart
$2,664 CAD