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Heart|Natural|GIA

0.51ct D SI1 Heart Natural Diamond

GD • D/SI1 • GIA 6525935906

Certificate GIA 6525935906

Diamond specifications and retailer prices

From $943 NZD
As of November 6, 2026
Save $226 NZD (19%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $1,169 NZD at 77 Diamonds · As of November 6, 2026
View at 77 Diamonds

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 standard cut grade stated by the retailer rather than the lab and certified by GIA 6525935906. Listed at 4 retailers as of November 6, 2026, with prices from $943 to $1,169, a $226 spread on the same certified stone. 77 Diamonds lists it at $1,169. 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
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6525935906
Dimensions4.93 × 5.65 × 3.28 mm
L/W Ratio1.15
Top View
4.93 mm5.65 mm0.51 ctD / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6525935906
Side View
Table 57.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 58.0%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 6
Current: $1,169 NZD|Low: $844 NZD|High: $1,277 NZD|Avg: $1,047 NZD|-6.7%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
November 6, 2026
Retailer 4$943 NZD
Retailer 3$963 NZD
Retailer 2$1,053 NZD
77 Diamonds$1,169 NZD

42 data points across 4 retailers

4 retailers$943 NZD to $1,169 NZD

A
Cheapest Retailer
-
$943 NZD
A
Retailer 2
-
$963 NZD
View
Final sale: no returns
B+
Retailer 3
-
$1,053 NZD
View
Most Expensive
B+
77 Diamonds
HSCPYCFBHRYV · Nov 6
$1,169 NZD
£510 GBP
View
3 more retailers have this diamond
Prices start from $943 NZDSave up to $226 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
$943 NZD