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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 $2,577 SGD
As of November 6, 2026
Save $2,499 SGD (49%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $6,241 SGD 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 1, 2026, with a 97% 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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $3,145 SGD|Low: $2,526 SGD|High: $5,293 SGD|Avg: $3,374 SGD|-1.3%
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 6$2,577 SGD
Retailer 4$2,621 SGD
Retailer 5$2,632 SGD
Retailer 11$2,850 SGD
Retailer 3$2,986 SGD
Retailer 8$3,031 SGD
Retailer 2$3,045 SGD
Retailer 1$3,145 SGD
Retailer 9$3,536 SGD
Retailer 7$3,542 SGD
Retailer 10$5,076 SGD

44 data points across 11 retailers

17 retailers$2,577 SGD to $5,076 SGD

A
Cheapest Retailer
-
$2,577 SGD
A
Retailer 2
-
$2,621 SGD
View
A
Retailer 3
-
$2,632 SGD
View
Final sale: no returns
B+
Retailer 4
-
$2,850 SGD
View
Retailer 5
-
$2,986 SGD
View
Price last confirmed 37 days ago
Retailer 6
-
$2,986 SGD
View
Price last confirmed 54 days ago
Retailer 7
-
$2,986 SGD
View
Price last confirmed 22 days ago
B+
Retailer 8
-
$3,031 SGD
View
B+
Retailer 9
-
$3,045 SGD
View
Retailer 10
-
$3,123 SGD
View
Price last confirmed 37 days ago
B+
Retailer 11
-
$3,145 SGD
View
Retailer 12
-
$3,445 SGD
View
Price last confirmed 39 days ago
Retailer 13
-
$3,445 SGD
View
Price last confirmed 53 days ago
B+
Retailer 14
-
$3,536 SGD
View
B+
Retailer 15
-
$3,542 SGD
View
B
Retailer 16
-
$5,076 SGD
View
Most Expensive
NZ Jewellers
208ced7d-d4f3-4a98-a242-cb0ea123fedb · Sep 30
$6,241 SGD
$4,870 USD
View
Price last confirmed 37 days ago
16 more retailers have this diamond
Prices start from $2,577 SGDSave up to $2,499 SGD

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
$2,577 SGD