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Heart|Natural|GIA

0.51ct H SI2 Heart Natural Diamond

GD • H/SI2 • GIA 1547478395

Certificate GIA 1547478395

Diamond specifications and retailer prices

From $628 NZD
As of November 6, 2026
Save $212 NZD (25%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $840 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 H 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 1547478395. Listed at 2 retailers as of November 6, 2026, with prices from $628 to $840, a $212 spread on the same certified stone. 77 Diamonds lists it at $840. 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
H
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1547478395
Dimensions4.96 × 5.57 × 3.27 mm
L/W Ratio1.12
Culet sizeNone
Key to symbols
Cloud
Top View
4.96 mm5.57 mm0.51 ctH / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1547478395
Side View
Table 55.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 58.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 6
Current: $840 NZD|Low: $572 NZD|High: $869 NZD|Avg: $731 NZD|-0.8%
77 Diamonds
Retailer 2
November 7, 2026
Retailer 2$628 NZD
77 Diamonds$840 NZD

42 data points across 2 retailers

2 retailers$628 NZD to $840 NZD

A
Cheapest Retailer
-
$628 NZD
Final sale: no returns
Most Expensive
B+
77 Diamonds
HSCPM7STCFGM · Nov 7
$840 NZD
£367 GBP
View
1 more retailer has this diamond
Prices start from $628 NZDSave up to $212 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
$628 NZD