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Heart|Natural|GIA

0.51ct E SI1 Heart Natural Diamond

VG • E/SI1 • GIA 1559834215

Certificate GIA 1559834215

Diamond specifications and retailer prices

From $1,315 NZD
As of November 6, 2026
6 retailers carry this diamond
Most expensive: $1,573 NZD at Wholesale Diamonds Direct · As of October 16, 2026
View at Wholesale Diamonds Direct

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 SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1559834215. Listed at 6 retailers as of November 6, 2026. 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
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle40.41°
Pavilion angle38.11°
OriginNatural
Grading LabGIA
CertificateGIA 1559834215
Dimensions4.90 × 5.46 × 3.23 mm
L/W Ratio1.11
Culet sizeNone
Top View
4.90 mm5.46 mm0.51 ctE / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1559834215
Side View
Table 59.0%Crown 40.41°Girdle: MED-VTKPavilion 38.11°Culet: NoneDepth 59.2%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 6
Current: $1,165 NZD|Low: $1,037 NZD|High: $1,573 NZD|Avg: $1,261 NZD|+1.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Wholesale Diamonds Direct
October 18, 2026
Retailer 6$1,037 NZD
Retailer 4$1,053 NZD
Retailer 5$1,122 NZD
Retailer 1$1,165 NZD
Retailer 2$1,292 NZD
Retailer 7$1,351 NZD
Retailer 3$1,524 NZD
Wholesale Diamonds Direct$1,573 NZD

27 data points across 8 retailers

6 retailers

Retailer 1
-
$1,037 NZD
Price last confirmed 20 days ago
Retailer 2
-
$1,165 NZD
View
Price last confirmed 19 days ago
Retailer 3
-
$1,292 NZD
View
Price last confirmed 21 days ago
B+
Retailer 4
-
$1,315 NZD
View
Retailer 5
-
$1,351 NZD
View
Price last confirmed 20 days ago
Most Expensive
Wholesale Diamonds Direct
274102204 · Oct 16
$1,573 NZD
$872 USD
View
Price last confirmed 20 days ago
5 more retailers have this diamond
Prices start from $1,315 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.

B+
0.51ct Heart
$1,315 NZD