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Heart|Natural|GIA

0.51ct E SI2 Heart Natural Diamond

GD • E/SI2 • GIA 1539589319

Certificate GIA 1539589319

Diamond specifications and retailer prices

From $566 AUD
As of November 6, 2026
Save $160 AUD (22%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $726 AUD 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 E colour (colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 1539589319. Listed at 4 retailers as of November 6, 2026, with prices from $566 to $726, a $160 spread on the same certified stone. 77 Diamonds lists it at $726. 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
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1539589319
Dimensions4.74 × 5.67 × 3.17 mm
L/W Ratio1.20
Culet sizeNone
Key to symbols
Cloud, Crystal
Top View
4.74 mm5.67 mm0.51 ctE / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1539589319
Side View
Table 60.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 55.9%

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: $726 AUD|Low: $547 AUD|High: $838 AUD|Avg: $658 AUD|-11.7%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
November 6, 2026
Retailer 2$566 AUD
Retailer 3$588 AUD
Retailer 4$636 AUD
77 Diamonds$726 AUD

42 data points across 4 retailers

4 retailers$566 AUD to $726 AUD

A
Cheapest Retailer
-
$566 AUD
A
Retailer 2
-
$588 AUD
View
Final sale: no returns
A
Retailer 3
-
$636 AUD
View
Most Expensive
B+
77 Diamonds
HSCPD8RYZBBQ · Nov 6
$726 AUD
£393 GBP
View
3 more retailers have this diamond
Prices start from $566 AUDSave up to $160 AUD

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
$566 AUD