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Heart|Natural|IGI

1.21ct I SI1 Heart Natural Diamond

VG • I/SI1 • IGI 726507508

Shape and cutting style on the report: Heart brilliant

Certificate IGI 726507508

Diamond specifications and retailer prices

From $2,640 CAD
As of November 5, 2026
Save $3,469 CAD (57%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $6,109 CAD at NZ Jewellers · As of September 20, 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 very-good cut grade and certified by IGI 726507508. Listed at 13 retailers as of November 5, 2026, with a 131% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
I
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Crown angle38.6°
Pavilion angle38.7°
OriginNatural
Grading LabIGI
CertificateIGI 726507508
Dimensions6.46 × 7.29 × 4.28 mm
L/W Ratio1.13
Girdle conditionFaceted
Culet sizePointed
Top View
6.46 mm7.29 mm1.21 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateIGI 726507508
Side View
Table 58.0%Crown 38.6°Girdle: MED-STKPavilion 38.7°Culet: NoneDepth 58.7%

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 5
Current: $3,228 CAD|Low: $2,640 CAD|High: $5,181 CAD|Avg: $3,321 CAD|+3.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 4$2,640 CAD
Retailer 6$2,841 CAD
Retailer 7$2,922 CAD
Retailer 5$2,961 CAD
Retailer 1$3,228 CAD
Retailer 2$3,566 CAD
Retailer 3$5,105 CAD

43 data points across 7 retailers

13 retailers$2,640 CAD to $6,109 CAD

A
Cheapest Retailer
-
$2,640 CAD
Retailer 2
-
$2,922 CAD
View
Price last confirmed 45 days ago
B+
Retailer 3
-
$2,922 CAD
View
Retailer 4
-
$2,922 CAD
View
Price last confirmed 8 days ago
B+
Retailer 5
-
$2,961 CAD
View
B+
Retailer 6
-
$3,057 CAD
View
B+
Retailer 7
-
$3,228 CAD
View
Retailer 8
-
$3,372 CAD
View
Price last confirmed 43 days ago
B+
Retailer 9
-
$3,372 CAD
View
B+
Retailer 10
-
$3,566 CAD
View
B
Retailer 11
-
$5,105 CAD
View
C
Retailer 12
-
$6,109 CAD
View
Most Expensive
NZ Jewellers
2a16426c-cd62-4a91-b4ed-b2e3d80f3e91 · Sep 20
$6,109 CAD
$4,343 USD
View
Price last confirmed 46 days ago
12 more retailers have this diamond
Prices start from $2,640 CADSave up to $3,469 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
$2,640 CAD