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Heart|Natural|IGI

0.51ct E SI2 Heart Natural Diamond

VG • E/SI2 • IGI 790616518

Shape and cutting style on the report: Heart brilliant

Certificate IGI 790616518

Diamond specifications and retailer prices

From $595 AUD
As of November 6, 2026
Save $1,880 AUD (76%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $2,476 AUD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 0.51ct natural heart diamond

This 0.51ct natural heart sits in the half to three-quarter carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI 790616518. Listed at 11 retailers as of November 5, 2026, with prices from $595 to $2,476, a $1,880 spread on the same certified stone. NZ Jewellers lists it at $2,476. 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

0.51
Carat
E
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryGood
FluorescenceFaint
Crown angle37°
Pavilion angle41.3°
OriginNatural
Grading LabIGI
CertificateIGI 790616518
Dimensions5.06 × 5.04 × 3.19 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Top View
5.06 mm5.04 mm0.51 ctE / SI2
OriginNatural
CutVery Good
PolishVery Good
SymmetryGood
FluorescenceFaint
CertificateIGI 790616518
Side View
Table 62.0%Crown 37°Girdle: STK-VTKPavilion 41.3°Culet: NoneDepth 63.3%

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: $2,476 AUD|Low: $550 AUD|High: $2,509 AUD|Avg: $998 AUD|-1.3%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 8$595 AUD
Retailer 6$646 AUD
Retailer 7$696 AUD
Retailer 3$697 AUD
Retailer 9$745 AUD
Retailer 2$767 AUD
Retailer 10$809 AUD
Retailer 5$835 AUD
Retailer 4$974 AUD
Retailer 11$1,495 AUD
NZ Jewellers$2,476 AUD

35 data points across 11 retailers

11 retailers$595 AUD to $2,476 AUD

B+
Cheapest Retailer
-
$595 AUD
Final sale: no returns
A
Retailer 2
-
$646 AUD
View
A
Retailer 3
-
$696 AUD
View
Retailer 4
-
$697 AUD
View
Price last confirmed 8 days ago
A
Retailer 5
-
$745 AUD
View
A
Retailer 6
-
$767 AUD
View
B+
Retailer 7
-
$809 AUD
View
B+
Retailer 8
-
$835 AUD
View
B+
Retailer 9
-
$974 AUD
View
B
Retailer 10
-
$1,495 AUD
View
Most Expensive
C
NZ Jewellers
0971bbf3-e5f1-4a8c-a6d6-bd5342f273d4 · Nov 5
$2,476 AUD
$1,701 USD
View
10 more retailers have this diamond
Prices start from $595 AUDSave up to $1,880 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
0.51ct Heart
$595 AUD