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Heart|Natural|IGI

1.31ct K SI1 Heart Natural Diamond

VG • K/SI1 • IGI 788607896

Shape and cutting style on the report: Heart brilliant

Certificate IGI 788607896

Diamond specifications and retailer prices

From $2,151 CAD
As of November 6, 2026
Save $2,048 CAD (49%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $6,023 CAD at NZ Jewellers · As of September 30, 2026
View at NZ Jewellers

About this 1.31ct natural heart diamond

This 1.31ct natural heart sits in the one-and-a-quarter to one-and-a-half carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 788607896. Listed at 15 retailers as of November 2, 2026, with a 95% 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

1.31
Carat
K
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle39.3°
OriginNatural
Grading LabIGI
CertificateIGI 788607896
Dimensions6.89 × 7.58 × 4.31 mm
L/W Ratio1.10
Girdle conditionFaceted
Culet sizePointed
Top View
6.89 mm7.58 mm1.31 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 788607896
Side View
Table 60.0%Crown 35.4°Girdle: STK-THKPavilion 39.3°Culet: NoneDepth 56.9%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $2,151 CAD|Low: $2,151 CAD|High: $4,377 CAD|Avg: $2,899 CAD|-1.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 1$2,151 CAD
Retailer 9$2,440 CAD
Retailer 2$2,470 CAD
Retailer 7$2,497 CAD
Retailer 10$2,509 CAD
Retailer 4$2,553 CAD
Retailer 6$2,703 CAD
Retailer 5$2,924 CAD
Retailer 3$3,206 CAD
Retailer 8$4,199 CAD

44 data points across 10 retailers

15 retailers$2,151 CAD to $4,199 CAD

A
Cheapest Retailer
-
$2,151 CAD
B+
Retailer 2
-
$2,440 CAD
View
Retailer 3
-
$2,470 CAD
View
Price last confirmed 36 days ago
Retailer 4
-
$2,470 CAD
View
Price last confirmed 21 days ago
B+
Retailer 5
-
$2,497 CAD
View
B+
Retailer 6
-
$2,509 CAD
View
B+
Retailer 7
-
$2,553 CAD
View
Retailer 8
-
$2,584 CAD
View
Price last confirmed 36 days ago
B+
Retailer 9
-
$2,703 CAD
View
Retailer 10
-
$2,850 CAD
View
Price last confirmed 61 days ago
Retailer 11
-
$2,850 CAD
View
Price last confirmed 38 days ago
B+
Retailer 12
-
$2,924 CAD
View
B+
Retailer 13
-
$3,206 CAD
View
B+
Retailer 14
-
$4,199 CAD
View
Most Expensive
NZ Jewellers
cb930f5a-9955-4523-ba58-6f6fcdb7c4c6 · Sep 30
$6,023 CAD
$4,282 USD
View
Price last confirmed 37 days ago
14 more retailers have this diamond
Prices start from $2,151 CADSave up to $2,048 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
1.31ct Heart
$2,151 CAD