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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 $738 NZD
As of November 6, 2026
Save $2,331 NZD (76%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $3,068 NZD 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 $738 to $3,068, a $2,331 spread on the same certified stone. NZ Jewellers lists it at $3,068. 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: $3,068 NZD|Low: $682 NZD|High: $3,110 NZD|Avg: $1,237 NZD|-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$738 NZD
Retailer 6$801 NZD
Retailer 7$862 NZD
Retailer 3$864 NZD
Retailer 9$924 NZD
Retailer 2$951 NZD
Retailer 10$1,003 NZD
Retailer 5$1,035 NZD
Retailer 4$1,207 NZD
Retailer 11$1,853 NZD
NZ Jewellers$3,068 NZD

35 data points across 11 retailers

11 retailers$738 NZD to $3,068 NZD

B+
Cheapest Retailer
-
$738 NZD
Final sale: no returns
A
Retailer 2
-
$801 NZD
View
A
Retailer 3
-
$862 NZD
View
Retailer 4
-
$864 NZD
View
Price last confirmed 8 days ago
A
Retailer 5
-
$924 NZD
View
A
Retailer 6
-
$951 NZD
View
B+
Retailer 7
-
$1,003 NZD
View
B+
Retailer 8
-
$1,035 NZD
View
B+
Retailer 9
-
$1,207 NZD
View
B
Retailer 10
-
$1,853 NZD
View
Most Expensive
C
NZ Jewellers
0971bbf3-e5f1-4a8c-a6d6-bd5342f273d4 · Nov 5
$3,068 NZD
$1,701 USD
View
10 more retailers have this diamond
Prices start from $738 NZDSave up to $2,331 NZD

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
$738 NZD