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Heart|Natural|GIA

0.51ct D SI1 Heart Natural Diamond

VG • D/SI1 • GIA 2517450428

Certificate GIA 2517450428

Diamond specifications and retailer prices

From $972 NZD
As of November 6, 2026
Save $2,332 NZD (71%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $3,305 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 D 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 2517450428. Listed at 11 retailers as of November 5, 2026, with prices from $972 to $3,305, a $2,332 spread on the same certified stone. NZ Jewellers lists it at $3,305. 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
D
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle36°
Pavilion angle43.5°
OriginNatural
Grading LabGIA
CertificateGIA 2517450428
Dimensions5.37 × 5.05 × 3.24 mm
L/W Ratio1.06
Top View
5.37 mm5.05 mm0.51 ctD / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 2517450428
Side View
Table 56.0%Crown 36°Girdle: MED-VTKPavilion 43.5°Culet: NoneDepth 60.4%

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: Nov 6
Current: $3,305 NZD|Low: $878 NZD|High: $3,305 NZD|Avg: $1,474 NZD
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 12$972 NZD
Retailer 11$1,053 NZD
Retailer 9$1,135 NZD
Retailer 10$1,135 NZD
Retailer 4$1,153 NZD
Retailer 7$1,216 NZD
Retailer 8$1,216 NZD
Retailer 3$1,266 NZD
Retailer 2$1,550 NZD
Retailer 5$1,625 NZD
Retailer 6$2,430 NZD
NZ Jewellers$3,305 NZD

42 data points across 12 retailers

11 retailers$972 NZD to $3,305 NZD

A
Cheapest Retailer
-
$972 NZD
Final sale: no returns
A
Retailer 2
-
$1,053 NZD
View
Retailer 3
-
$1,135 NZD
View
Price last confirmed 8 days ago
B+
Retailer 4
-
$1,135 NZD
View
B+
Retailer 5
-
$1,216 NZD
View
B+
Retailer 6
-
$1,216 NZD
View
Retailer 7
-
$1,266 NZD
View
Price last confirmed 10 days ago
B
Retailer 8
-
$1,550 NZD
View
B+
Retailer 9
-
$1,625 NZD
View
B
Retailer 10
-
$2,430 NZD
View
Most Expensive
B
NZ Jewellers
f2b20deb-afc6-441f-aba4-4c8e985227b0 · Nov 5
$3,305 NZD
$1,832 USD
View
10 more retailers have this diamond
Prices start from $972 NZDSave up to $2,332 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
$972 NZD