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Heart|Natural|GIA

1.28ct I SI1 Heart Natural Diamond

ID • I/SI1 • GIA 1553609111

Certificate GIA 1553609111

Diamond specifications and retailer prices

From $2,756 CAD
As of November 6, 2026
Save $1,782 CAD (39%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $8,095 CAD at NZ Jewellers · As of October 6, 2026
View at NZ Jewellers

About this 1.28ct natural heart diamond

This 1.28ct natural heart sits in the one-and-a-quarter to one-and-a-half 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 1553609111. Listed at 12 retailers as of November 6, 2026, with a 65% 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

1.28
Carat
I
Color
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1553609111
Dimensions6.72 × 7.53 × 4.41 mm
L/W Ratio1.12
Girdle conditionThick
Top View
6.72 mm7.53 mm1.28 ctI / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1553609111
Side View
Table 58.0%CrownGirdle: MediumPavilionCulet: NoneDepth 58.6%

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: $2,756 CAD|Low: $2,756 CAD|High: $6,864 CAD|Avg: $4,107 CAD|-8.5%
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 1$2,756 CAD
Retailer 10$2,930 CAD
Retailer 9$3,272 CAD
Retailer 8$3,432 CAD
Retailer 2$3,557 CAD
Retailer 5$3,851 CAD
Retailer 6$3,867 CAD
Retailer 3$4,338 CAD
Retailer 7$4,460 CAD
Retailer 4$4,538 CAD
Retailer 11$6,717 CAD

32 data points across 11 retailers

12 retailers$2,756 CAD to $4,538 CAD

A
Cheapest Retailer
-
$2,756 CAD
A
Retailer 2
-
$2,930 CAD
View
Final sale: no returns
A
Retailer 3
-
$3,272 CAD
View
A
Retailer 4
-
$3,432 CAD
View
A
Retailer 5
-
$3,557 CAD
View
A
Retailer 6
-
$3,851 CAD
View
A
Retailer 7
-
$3,867 CAD
View
Retailer 8
-
$4,338 CAD
View
Price last confirmed 30 days ago
B+
Retailer 9
-
$4,460 CAD
View
B+
Retailer 10
-
$4,538 CAD
View
Retailer 11
-
$6,717 CAD
View
Price last confirmed 11 days ago
Most Expensive
NZ Jewellers
54e56388-8c9f-41d1-b62b-9fec14c0741f · Oct 6
$8,095 CAD
$5,755 USD
View
Price last confirmed 31 days ago
11 more retailers have this diamond
Prices start from $2,756 CADSave up to $1,782 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
1.28ct Heart
$2,756 CAD