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Heart|Natural|IGI

1.51ct H SI2 Heart Natural Diamond

VG • H/SI2 • IGI 803629080

Shape and cutting style on the report: Heart brilliant

Certificate IGI 803629080

Diamond specifications and retailer prices

From $2,642 USD
As of October 31, 2026
Save $3,524 USD (57%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $6,166 USD at NZ Jewellers · As of October 30, 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 H colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI 803629080. Listed at 14 retailers as of October 30, 2026, with prices from $2,642 to $6,166, a $3,524 spread on the same certified stone. NZ Jewellers lists it at $6,166. 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
H
Color
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37°
Pavilion angle37.8°
OriginNatural
Grading LabIGI
CertificateIGI 803629080
Dimensions7.26 × 8.00 × 4.49 mm
L/W Ratio1.10
Girdle conditionFaceted
Top View
7.26 mm8.00 mm1.51 ctH / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 803629080
Side View
Table 59.0%Crown 37°Girdle: STK-THKPavilion 37.8°Culet: NoneDepth 56.1%

Caratlytics Score

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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: Oct 31
Current: $6,166 USD|Low: $2,571 USD|High: $6,166 USD|Avg: $3,516 USD|+16.4%
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
November 2, 2026
Retailer 10$2,642 USD
Retailer 13$2,722 USD
Retailer 11$2,818 USD
Retailer 9$2,837 USD
Retailer 2$2,857 USD
Retailer 3$3,040 USD
Retailer 5$3,040 USD
Retailer 7$3,092 USD
Retailer 4$3,156 USD
Retailer 12$3,403 USD
Retailer 6$3,452 USD
Retailer 8$4,933 USD
NZ Jewellers$6,166 USD

45 data points across 13 retailers

14 retailers$2,642 USD to $6,166 USD

A
Cheapest Retailer
-
$2,642 USD
A
Retailer 2
-
$2,722 USD
View
Final sale: no returns
A
Retailer 3
-
$2,818 USD
View
A
Retailer 4
-
$2,837 USD
View
A
Retailer 5
-
$2,857 USD
£2,250 GBP
View
B+
Retailer 6
-
$3,040 USD
View
B+
Retailer 7
-
$3,040 USD
View
Retailer 8
-
$3,040 USD
View
Price last confirmed 17 days ago
B+
Retailer 9
-
$3,092 USD
View
B+
Retailer 10
-
$3,156 USD
View
A
Retailer 11
-
$3,403 USD
View
B+
Retailer 12
-
$3,452 USD
€3,288 EUR
View
B+
Retailer 13
-
$4,933 USD
£3,884 GBP
View
Most Expensive
B
NZ Jewellers
6dc05a17-ff07-41b6-8585-84b4a869d57e · Oct 30
$6,166 USD
View
13 more retailers have this diamond
Prices start from $2,642 USDSave up to $3,524 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
1.51ct Heart
$2,642 USD