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Heart|Natural|IGI

1.51ct I SI1 Heart Natural Diamond

VG • I/SI1 • IGI 790611321

Shape and cutting style on the report: Heart brilliant

Certificate IGI 790611321

Diamond specifications and retailer prices

From $3,422 CAD
As of November 5, 2026
Save $4,467 CAD (57%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $7,890 CAD at NZ Jewellers · As of November 3, 2026
View at NZ Jewellers

About this 1.51ct natural heart diamond

This 1.51ct natural heart sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 790611321. Listed at 16 retailers as of November 3, 2026, with prices from $3,422 to $7,890, a $4,467 spread on the same certified stone. NZ Jewellers lists it at $7,890. 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

1.51
Carat
I
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceStrong
Crown angle40.6°
Pavilion angle36.7°
OriginNatural
Grading LabIGI
CertificateIGI 790611321
Dimensions8.01 × 7.17 × 4.45 mm
L/W Ratio1.12
Girdle conditionFaceted
Top View
8.01 mm7.17 mm1.51 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateIGI 790611321
Side View
Table 60.0%Crown 40.6°Girdle: THN-STKPavilion 36.7°Culet: NoneDepth 55.6%

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 5
Current: $7,890 CAD|Low: $3,422 CAD|High: $8,006 CAD|Avg: $5,126 CAD|-1.5%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 6, 2026
Retailer 8$3,422 CAD
Retailer 9$3,915 CAD
Retailer 4$4,192 CAD
Retailer 10$4,293 CAD
Retailer 13$4,367 CAD
Retailer 2$4,383 CAD
Retailer 14$4,528 CAD
Retailer 6$4,548 CAD
Retailer 3$4,705 CAD
Retailer 5$5,033 CAD
Retailer 7$5,519 CAD
Retailer 12$6,653 CAD
Retailer 11$7,541 CAD
NZ Jewellers$7,890 CAD

21 data points across 14 retailers

16 retailers$3,422 CAD to $7,890 CAD

A
Cheapest Retailer
-
$3,422 CAD
A
Retailer 2
-
$3,915 CAD
View
B+
Retailer 3
-
$4,192 CAD
View
A
Retailer 4
-
$4,293 CAD
View
B+
Retailer 5
-
$4,367 CAD
View
A
Retailer 6
-
$4,383 CAD
View
B+
Retailer 7
-
$4,504 CAD
View
Final sale: no returns
A
Retailer 8
-
$4,528 CAD
View
Retailer 9
-
$4,548 CAD
View
Price last confirmed 8 days ago
B+
Retailer 10
-
$4,615 CAD
View
B+
Retailer 11
-
$4,705 CAD
View
B+
Retailer 12
-
$5,033 CAD
View
B+
Retailer 13
-
$5,519 CAD
View
B+
Retailer 14
-
$6,653 CAD
View
B
Retailer 15
-
$7,541 CAD
View
Most Expensive
B
NZ Jewellers
bd3e929c-69a8-4605-b02c-91a5173c0542 · Nov 3
$7,890 CAD
$5,609 USD
View
15 more retailers have this diamond
Prices start from $3,422 CADSave up to $4,467 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
1.51ct Heart
$3,422 CAD