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Heart|Natural|IGI

1.31ct I SI1 Heart Natural Diamond

VG • I/SI1 • IGI 762534772

Shape and cutting style on the report: Heart brilliant

Certificate IGI 762534772

Diamond specifications and retailer prices

From $2,902 SGD
As of November 6, 2026
Save $2,795 SGD (49%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $7,026 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 762534772. Listed at 16 retailers as of November 4, 2026, with a 96% 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
I
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle34.5°
Pavilion angle38.2°
OriginNatural
Grading LabIGI
CertificateIGI 762534772
Dimensions7.00 × 7.70 × 4.32 mm
L/W Ratio1.10
Girdle conditionFaceted
Culet sizePointed
Top View
7.00 mm7.70 mm1.31 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 762534772
Side View
Table 58.0%Crown 34.5°Girdle: STK-THKPavilion 38.2°Culet: NoneDepth 56.1%

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: $3,449 SGD|Low: $2,902 SGD|High: $5,958 SGD|Avg: $3,816 SGD|-1.9%
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 5$2,902 SGD
Retailer 10$2,948 SGD
Retailer 4$2,966 SGD
Retailer 11$3,169 SGD
Retailer 3$3,360 SGD
Retailer 7$3,392 SGD
Retailer 2$3,432 SGD
Retailer 1$3,449 SGD
Retailer 8$3,979 SGD
Retailer 6$3,988 SGD
Retailer 9$5,697 SGD

44 data points across 11 retailers

16 retailers$2,902 SGD to $5,697 SGD

A
Cheapest Retailer
-
$2,902 SGD
A
Retailer 2
-
$2,948 SGD
View
A
Retailer 3
-
$2,966 SGD
View
Final sale: no returns
A
Retailer 4
-
$3,169 SGD
View
Retailer 5
-
$3,360 SGD
View
Price last confirmed 37 days ago
Retailer 6
-
$3,360 SGD
View
Price last confirmed 22 days ago
B+
Retailer 7
-
$3,392 SGD
View
B+
Retailer 8
-
$3,432 SGD
View
A
Retailer 9
-
$3,449 SGD
View
Retailer 10
-
$3,490 SGD
View
Price last confirmed 37 days ago
Retailer 11
-
$3,877 SGD
View
Price last confirmed 62 days ago
Retailer 12
-
$3,877 SGD
View
Price last confirmed 39 days ago
B+
Retailer 13
-
$3,979 SGD
View
B+
Retailer 14
-
$3,988 SGD
View
B
Retailer 15
-
$5,697 SGD
View
Most Expensive
NZ Jewellers
5d6ee5f4-fb6c-488f-bf38-66a35693000d · Sep 30
$7,026 SGD
$5,482 USD
View
Price last confirmed 37 days ago
15 more retailers have this diamond
Prices start from $2,902 SGDSave up to $2,795 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
$2,902 SGD