Heart|Natural|GIA

1.21ct J SI1 Heart Natural Diamond

EX • J/SI1 • GIA 6551539989

Certificate GIA 6551539989

Diamond specifications and retailer prices

From $2,850 CAD
As of November 6, 2026
8 retailers carry this diamond
Most expensive: $6,259 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 J 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 6551539989. Listed at 8 retailers as of November 6, 2026. 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
J
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle38.94°
OriginNatural
Grading LabGIA
CertificateGIA 6551539989
Dimensions6.66 × 7.25 × 3.96 mm
L/W Ratio1.09
Key to symbols
Crystal, Feather, Needle
Top View
6.66 mm7.25 mm1.21 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6551539989
Side View
Table 56.0%CrownGirdle: STK-VTKPavilion 38.94°Culet: NoneDepth 59.4%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 6
Current: $3,504 CAD|Low: $1,872 CAD|High: $4,825 CAD|Avg: $3,083 CAD|-11.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 18, 2026
Retailer 3$1,872 CAD
Retailer 5$2,566 CAD
Retailer 4$2,619 CAD
Retailer 6$2,850 CAD
Retailer 1$3,504 CAD
Retailer 2$4,519 CAD

19 data points across 6 retailers

8 retailers

Retailer 1
-
$1,872 CAD
Price last confirmed 15 days ago
Retailer 2
-
$2,566 CAD
View
Price last confirmed 19 days ago
Retailer 3
-
$2,619 CAD
View
Price last confirmed 18 days ago
Retailer 4
-
$2,685 CAD
View
Price last confirmed 21 days ago
B+
Retailer 5
-
$2,850 CAD
View
Retailer 6
-
$2,940 CAD
View
Price last confirmed 8 days ago
Retailer 7
-
$4,519 CAD
View
Price last confirmed 18 days ago
Most Expensive
NZ Jewellers
4099ec2c-22ce-42b7-a61e-fb17aa557a1b · Oct 18
$6,259 CAD
$4,450 USD
View
Price last confirmed 19 days ago
7 more retailers have this diamond
Prices start from $2,850 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
$2,850 CAD