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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 $2,298 USD
As of November 4, 2026
Save $2,147 USD (48%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $5,482 USD 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 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
I
Color
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 4
Current: $2,740 USD|Low: $2,298 USD|High: $4,649 USD|Avg: $2,970 USD|-0.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 5, 2026
Retailer 9$2,298 USD
Retailer 5$2,300 USD
Retailer 2$2,348 USD
Retailer 8$2,473 USD
Retailer 3$2,622 USD
Retailer 10$2,678 USD
Retailer 7$2,684 USD
Retailer 1$2,740 USD
Retailer 11$3,127 USD
Retailer 6$3,163 USD
Retailer 4$4,445 USD

43 data points across 11 retailers

16 retailers$2,298 USD to $4,445 USD

A
Cheapest Retailer
-
$2,298 USD
A
Retailer 2
-
$2,300 USD
View
A
Retailer 3
-
$2,348 USD
View
Final sale: no returns
A
Retailer 4
-
$2,473 USD
View
Retailer 5
-
$2,622 USD
View
Price last confirmed 35 days ago
Retailer 6
-
$2,622 USD
View
Price last confirmed 20 days ago
B+
Retailer 7
-
$2,678 USD
View
B+
Retailer 8
-
$2,684 USD
View
Retailer 9
-
$2,723 USD
View
Price last confirmed 35 days ago
A
Retailer 10
-
$2,740 USD
View
Retailer 11
-
$3,025 USD
View
Price last confirmed 60 days ago
Retailer 12
-
$3,025 USD
View
Price last confirmed 37 days ago
B+
Retailer 13
-
$3,127 USD
View
B+
Retailer 14
-
$3,163 USD
View
B
Retailer 15
-
$4,445 USD
View
Most Expensive
NZ Jewellers
5d6ee5f4-fb6c-488f-bf38-66a35693000d · Sep 30
$5,482 USD
View
Price last confirmed 35 days ago
15 more retailers have this diamond
Prices start from $2,298 USDSave up to $2,147 USD

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
$2,298 USD