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Heart|Natural|IGI

1.51ct E SI1 Heart Natural Diamond

VG • E/SI1 • IGI 802615393

Shape and cutting style on the report: Heart brilliant

Certificate IGI 802615393

Diamond specifications and retailer prices

From $6,599 AUD
₹441,488 INR
As of October 30, 2026
Save $8,488 AUD (56%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $15,087 AUD 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 E colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 802615393. Listed at 15 retailers as of October 30, 2026, with prices from $6,599 to $15,087, a $8,488 spread on the same certified stone. NZ Jewellers lists it at $15,087. 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
E
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle34.1°
Pavilion angle37.3°
OriginNatural
Grading LabIGI
CertificateIGI 802615393
Dimensions7.22 × 8.00 × 4.51 mm
L/W Ratio1.11
Girdle conditionFaceted
Culet sizePointed
Top View
7.22 mm8.00 mm1.51 ctE / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 802615393
Side View
Table 62.0%Crown 34.1°Girdle: MED-STKPavilion 37.3°Culet: NoneDepth 56.4%

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: Oct 30
Current: $15,087 AUD|Low: $6,560 AUD|High: $15,087 AUD|Avg: $9,604 AUD
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
Retailer 15
October 31, 2026
Retailer 10$6,599 AUD
Retailer 6$7,867 AUD
Retailer 4$7,897 AUD
Retailer 5$8,327 AUD
Retailer 7$8,392 AUD
Retailer 11$8,466 AUD
Retailer 9$8,826 AUD
Retailer 12$9,021 AUD
Retailer 13$9,021 AUD
Retailer 14$9,021 AUD
Retailer 2$9,857 AUD
Retailer 8$10,408 AUD
Retailer 3$10,985 AUD
Retailer 15$13,361 AUD
NZ Jewellers$15,087 AUD

24 data points across 15 retailers

15 retailers$6,599 AUD to $15,087 AUD

A
Cheapest Retailer
-
$6,599 AUD
₹441,488 INR
B+
Retailer 2
-
$7,867 AUD
$5,526 USD
View
B+
Retailer 3
-
$7,897 AUD
$5,547 USD
View
B+
Retailer 4
-
$8,327 AUD
$5,849 USD
View
Final sale: no returns
B+
Retailer 5
-
$8,392 AUD
$5,895 USD
View
B+
Retailer 6
-
$8,466 AUD
£4,682 GBP
View
B+
Retailer 7
-
$8,826 AUD
£4,882 GBP
View
B+
Retailer 8
-
$9,021 AUD
$6,337 USD
View
B+
Retailer 9
-
$9,021 AUD
$6,337 USD
View
B+
Retailer 10
-
$9,245 AUD
$6,494 USD
View
B+
Retailer 11
-
$9,857 AUD
€6,594 EUR
View
B
Retailer 12
-
$10,408 AUD
$7,311 USD
View
B
Retailer 13
-
$10,985 AUD
ZAR 124,656 ZAR
View
B
Retailer 14
-
$13,361 AUD
£7,390 GBP
View
Most Expensive
B
NZ Jewellers
cfe0ad0c-2fb3-4676-af13-72a7da7112f9 · Oct 30
$15,087 AUD
$10,598 USD
View
14 more retailers have this diamond
Prices start from $6,599 AUDSave up to $8,488 AUD

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
$6,599 AUD