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Heart|Natural|IGI

1.50ct E SI1 Heart Natural Diamond

VG • E/SI1 • IGI 610305750

Shape and cutting style on the report: Heart brilliant

Certificate IGI 610305750

Diamond specifications and retailer prices

From $3,512 USD
As of November 5, 2026
Save $1,360 USD (28%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $8,755 USD at NZ Jewellers · As of September 30, 2026
View at NZ Jewellers

About this 1.5ct natural heart diamond

This 1.5ct natural heart sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 610305750. Listed at 9 retailers as of November 5, 2026, with a 39% 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

1.50
Carat
E
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36.4°
Pavilion angle39.2°
OriginNatural
Grading LabIGI
CertificateIGI 610305750
Dimensions6.78 × 7.79 × 4.67 mm
L/W Ratio1.15
Girdle conditionFaceted
Culet sizePointed
Top View
6.78 mm7.79 mm1.50 ctE / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 610305750
Side View
Table 62.0%Crown 36.4°Girdle: STK-THKPavilion 39.2°Culet: NoneDepth 59.9%

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 5
Current: $4,118 USD|Low: $3,512 USD|High: $8,100 USD|Avg: $5,201 USD|-17.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 5$3,512 USD
Retailer 4$3,805 USD
Retailer 6$3,988 USD
Retailer 1$4,118 USD
Retailer 7$4,638 USD
Retailer 3$4,872 USD
Retailer 9$5,025 USD
Retailer 10$5,025 USD
Retailer 2$5,995 USD
Retailer 8$8,078 USD

26 data points across 10 retailers

9 retailers$3,512 USD to $4,872 USD

A
Cheapest Retailer
-
$3,512 USD
A
Retailer 2
-
$3,805 USD
View
Retailer 3
-
$3,988 USD
View
Price last confirmed 24 days ago
A
Retailer 4
-
$4,118 USD
View
A
Retailer 5
-
$4,138 USD
View
B+
Retailer 6
-
$4,872 USD
View
Retailer 7
-
$5,025 USD
View
Price last confirmed 29 days ago
Retailer 8
-
$5,798 USD
View
Price last confirmed 28 days ago
Most Expensive
NZ Jewellers
2ddb6b87-c8e4-4948-943a-ceaa3f8773c6 · Sep 30
$8,755 USD
View
Price last confirmed 37 days ago
8 more retailers have this diamond
Prices start from $3,512 USDSave up to $1,360 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
1.50ct Heart
$3,512 USD