CaratHunter
Plans
Heart|Natural|IGI

1.51ct J SI1 Heart Natural Diamond

VG • J/SI1 • IGI 440097543

Shape and cutting style on the report: Heart brilliant

Certificate IGI 440097543

Diamond specifications and retailer prices

From $3,399 USD
As of November 5, 2026
Save $3,331 USD (49%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $6,730 USD at NZ Jewellers · As of November 5, 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 J colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 440097543. Listed at 14 retailers as of November 5, 2026, with prices from $3,399 to $6,730, a $3,331 spread on the same certified stone. NZ Jewellers lists it at $6,730. 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
J
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryGood
FluorescenceNone
Crown angle35.4°
Pavilion angle40.3°
OriginNatural
Grading LabIGI
CertificateIGI 440097543
Dimensions7.04 × 8.01 × 4.73 mm
L/W Ratio1.14
Girdle conditionFaceted
Culet sizePointed
Top View
7.04 mm8.01 mm1.51 ctJ / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateIGI 440097543
Side View
Table 58.0%Crown 35.4°Girdle: THN-THKPavilion 40.3°Culet: NoneDepth 59.1%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $6,730 USD|Low: $3,268 USD|High: $6,730 USD|Avg: $4,342 USD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 3$3,494 USD
Retailer 12$3,565 USD
Retailer 4$3,695 USD
Retailer 2$3,696 USD
Retailer 9$3,863 USD
Retailer 11$3,863 USD
Retailer 5$3,985 USD
Retailer 10$4,011 USD
Retailer 8$4,457 USD
Retailer 6$4,715 USD
Retailer 7$6,460 USD
NZ Jewellers$6,730 USD

33 data points across 12 retailers

14 retailers$3,399 USD to $6,730 USD

B+
Cheapest Retailer
-
$3,399 USD
B+
Retailer 2
-
$3,494 USD
View
B+
Retailer 3
-
$3,565 USD
View
Final sale: no returns
B+
Retailer 4
-
$3,695 USD
View
B+
Retailer 5
-
$3,696 USD
View
Retailer 6
-
$3,863 USD
View
Price last confirmed 8 days ago
B+
Retailer 7
-
$3,863 USD
View
B+
Retailer 8
-
$3,985 USD
View
B
Retailer 9
-
$4,009 USD
View
B
Retailer 10
-
$4,011 USD
View
B
Retailer 11
-
$4,457 USD
View
B
Retailer 12
-
$4,715 USD
View
C
Retailer 13
-
$6,460 USD
View
Most Expensive
C
NZ Jewellers
c893162e-1be4-4059-bbee-f28f78242cca · Nov 5
$6,730 USD
View
13 more retailers have this diamond
Prices start from $3,399 USDSave up to $3,331 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.

B+
1.51ct Heart
$3,399 USD