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Heart|Natural|IGI

1.31ct J SI1 Heart Natural Diamond

VG • J/SI1 • IGI 762534971

Shape and cutting style on the report: Heart brilliant

Certificate IGI 762534971

Diamond specifications and retailer prices

From $2,927 AUD
As of November 6, 2026
Save $2,722 AUD (48%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $7,088 AUD 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 J colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 762534971. Listed at 17 retailers as of November 6, 2026, with a 93% 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
J
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.3°
Pavilion angle39.3°
OriginNatural
Grading LabIGI
CertificateIGI 762534971
Dimensions6.88 × 7.55 × 4.41 mm
L/W Ratio1.10
Girdle conditionFaceted
Culet sizePointed
Top View
6.88 mm7.55 mm1.31 ctJ / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 762534971
Side View
Table 59.0%Crown 36.3°Girdle: STK-THKPavilion 39.3°Culet: NoneDepth 58.4%

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: $5,648 AUD|Low: $2,927 AUD|High: $6,011 AUD|Avg: $3,872 AUD|-4.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 7, 2026
Retailer 7$2,927 AUD
Retailer 5$2,976 AUD
Retailer 6$2,989 AUD
Retailer 11$3,237 AUD
Retailer 3$3,391 AUD
Retailer 9$3,442 AUD
Retailer 2$3,458 AUD
Retailer 4$3,572 AUD
Retailer 10$4,015 AUD
Retailer 8$4,023 AUD
Retailer 1$5,648 AUD

44 data points across 11 retailers

17 retailers$2,927 AUD to $5,648 AUD

A
Cheapest Retailer
-
$2,927 AUD
A
Retailer 2
-
$2,976 AUD
View
A
Retailer 3
-
$2,989 AUD
View
Final sale: no returns
B+
Retailer 4
-
$3,237 AUD
View
Retailer 5
-
$3,391 AUD
View
Price last confirmed 37 days ago
Retailer 6
-
$3,391 AUD
View
Price last confirmed 54 days ago
Retailer 7
-
$3,391 AUD
View
Price last confirmed 22 days ago
B+
Retailer 8
-
$3,442 AUD
View
B+
Retailer 9
-
$3,458 AUD
View
Retailer 10
-
$3,547 AUD
View
Price last confirmed 37 days ago
B+
Retailer 11
-
$3,572 AUD
View
Retailer 12
-
$3,912 AUD
View
Price last confirmed 39 days ago
Retailer 13
-
$3,912 AUD
View
Price last confirmed 53 days ago
B+
Retailer 14
-
$4,015 AUD
View
B+
Retailer 15
-
$4,023 AUD
View
B
Retailer 16
-
$5,648 AUD
View
Most Expensive
NZ Jewellers
208ced7d-d4f3-4a98-a242-cb0ea123fedb · Sep 30
$7,088 AUD
$4,870 USD
View
Price last confirmed 37 days ago
16 more retailers have this diamond
Prices start from $2,927 AUDSave up to $2,722 AUD

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
$2,927 AUD