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Heart|Natural|GIA

0.51ct G SI2 Heart Natural Diamond

GD • G/SI2 • GIA 6535560414

Certificate GIA 6535560414

Diamond specifications and retailer prices

From $669 NZD
As of November 6, 2026
Save $189 NZD (22%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $858 NZD at 77 Diamonds · As of November 7, 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 G colour (near-colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6535560414. Listed at 3 retailers as of November 6, 2026, with prices from $669 to $858, a $189 spread on the same certified stone. 77 Diamonds lists it at $858. 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
G
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6535560414
Dimensions4.72 × 5.62 × 3.35 mm
L/W Ratio1.19
Top View
4.72 mm5.62 mm0.51 ctG / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6535560414
Side View
Table 58.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 59.5%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $858 NZD|Low: $646 NZD|High: $989 NZD|Avg: $769 NZD|-11.6%
77 Diamonds
Retailer 2
Retailer 3
November 7, 2026
Retailer 2$669 NZD
Retailer 3$696 NZD
77 Diamonds$858 NZD

42 data points across 3 retailers

3 retailers$669 NZD to $858 NZD

A
Cheapest Retailer
-
$669 NZD
A
Retailer 2
-
$696 NZD
View
Final sale: no returns
Most Expensive
B+
77 Diamonds
HSCPPPWFMEKT · Nov 7
$858 NZD
£375 GBP
View
2 more retailers have this diamond
Prices start from $669 NZDSave up to $189 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
$669 NZD