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Heart|Natural|IGI

1.51ct I SI1 Heart Natural Diamond

VG • I/SI1 • IGI 790611321

Shape and cutting style on the report: Heart brilliant

Certificate IGI 790611321

Diamond specifications and retailer prices

From €2,170 EUR
As of November 6, 2026
Save €2,854 EUR (57%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: €5,024 EUR at NZ Jewellers · As of November 3, 2026
View at NZ Jewellers

About this 1.51ct natural heart diamond

This 1.51ct natural heart sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 790611321. Listed at 16 retailers as of November 3, 2026, with prices from €2,170 to €5,024, a €2,854 spread on the same certified stone. NZ Jewellers lists it at €5,024. 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

1.51
Carat
I
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceStrong
Crown angle40.6°
Pavilion angle36.7°
OriginNatural
Grading LabIGI
CertificateIGI 790611321
Dimensions8.01 × 7.17 × 4.45 mm
L/W Ratio1.12
Girdle conditionFaceted
Top View
8.01 mm7.17 mm1.51 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateIGI 790611321
Side View
Table 60.0%Crown 40.6°Girdle: THN-STKPavilion 36.7°Culet: NoneDepth 55.6%

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: €5,024 EUR|Low: €2,170 EUR|High: €5,098 EUR|Avg: €3,261 EUR|-1.5%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 6, 2026
Retailer 8€2,170 EUR
Retailer 11€2,493 EUR
Retailer 2€2,632 EUR
Retailer 5€2,669 EUR
Retailer 12€2,734 EUR
Retailer 14€2,781 EUR
Retailer 9€2,791 EUR
Retailer 3€2,883 EUR
Retailer 6€2,896 EUR
Retailer 4€2,996 EUR
Retailer 10€3,515 EUR
Retailer 7€4,230 EUR
Retailer 13€4,802 EUR
NZ Jewellers€5,024 EUR

21 data points across 14 retailers

16 retailers€2,170 EUR to €5,024 EUR

A
Cheapest Retailer
-
€2,170 EUR
A
Retailer 2
-
€2,493 EUR
View
B+
Retailer 3
-
€2,632 EUR
View
B+
Retailer 4
-
€2,669 EUR
View
A
Retailer 5
-
€2,734 EUR
View
B+
Retailer 6
-
€2,781 EUR
View
A
Retailer 7
-
€2,791 EUR
View
B+
Retailer 8
-
€2,868 EUR
View
Final sale: no returns
A
Retailer 9
-
€2,883 EUR
View
Retailer 10
-
€2,896 EUR
View
Price last confirmed 9 days ago
B+
Retailer 11
-
€2,939 EUR
View
B+
Retailer 12
-
€2,996 EUR
View
B+
Retailer 13
-
€3,515 EUR
View
B+
Retailer 14
-
€4,230 EUR
View
B
Retailer 15
-
€4,802 EUR
View
Most Expensive
B
NZ Jewellers
bd3e929c-69a8-4605-b02c-91a5173c0542 · Nov 3
€5,024 EUR
$5,609 USD
View
15 more retailers have this diamond
Prices start from €2,170 EURSave up to €2,854 EUR

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
1.51ct Heart
€2,170 EUR