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Heart|Natural|IGI

1.35ct F SI1 Heart Natural Diamond

EX • F/SI1 • IGI 647429821

Shape and cutting style on the report: Cushion brilliant

Certificate IGI 647429821

Diamond specifications and retailer prices

From $5,086 CAD
As of November 5, 2026
Save $1,969 CAD (28%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $9,680 CAD at MOH London · As of October 25, 2026
View at MOH London

About this 1.35ct natural heart diamond

This 1.35ct natural heart sits in the one-and-a-quarter to one-and-a-half carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI 647429821. Listed at 11 retailers as of November 5, 2026, with a 39% 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

1.35
Carat
F
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle36°
OriginNatural
Grading LabIGI
CertificateIGI 647429821
Dimensions6.77 × 6.07 × 3.91 mm
L/W Ratio1.12
Girdle conditionFaceted
Culet sizePointed
Top View
6.77 mm6.07 mm1.35 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 647429821
Side View
Table 60.0%Crown 34.9°Girdle: MED-STKPavilion 36°Culet: NoneDepth 64.4%

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 5
Current: $9,680 CAD|Low: $4,891 CAD|High: $9,784 CAD|Avg: $6,762 CAD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 7$5,086 CAD
Retailer 8$5,279 CAD
Retailer 6$5,335 CAD
Retailer 2$5,607 CAD
Retailer 4$5,968 CAD
Retailer 5$6,504 CAD
Retailer 3$7,056 CAD
Retailer 9$9,565 CAD
MOH London$9,680 CAD

32 data points across 9 retailers

11 retailers$5,086 CAD to $7,056 CAD

B+
Cheapest Retailer
-
$5,086 CAD
Retailer 2
-
$5,279 CAD
View
Price last confirmed 12 days ago
B+
Retailer 3
-
$5,335 CAD
View
Final sale: no returns
B+
Retailer 4
-
$5,500 CAD
View
B+
Retailer 5
-
$5,607 CAD
View
B+
Retailer 6
-
$5,968 CAD
View
B+
Retailer 7
-
$5,988 CAD
View
B+
Retailer 8
-
$6,504 CAD
View
B+
Retailer 9
-
$7,056 CAD
View
Retailer 10
-
$9,565 CAD
View
Price last confirmed 29 days ago
Most Expensive
MOH London
05ABB381A · Oct 25
$9,680 CAD
£5,419 GBP
View
Price last confirmed 12 days ago
10 more retailers have this diamond
Prices start from $5,086 CADSave up to $1,969 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+
1.35ct Heart
$5,086 CAD