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Heart|Natural|GIA

0.51ct E SI2 Heart Natural Diamond

GD • E/SI2 • GIA 6522392556

Certificate GIA 6522392556

Diamond specifications and retailer prices

From $553 AUD
As of November 6, 2026
Save $152 AUD (22%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $705 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 6522392556. Listed at 4 retailers as of November 6, 2026, with prices from $553 to $705, a $152 spread on the same certified stone. 77 Diamonds lists it at $705. 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
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6522392556
Dimensions4.95 × 5.48 × 3.11 mm
L/W Ratio1.11
Top View
4.95 mm5.48 mm0.51 ctE / SI2
OriginNatural
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 6522392556
Side View
Table 59.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 56.9%

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: $705 AUD|Low: $528 AUD|High: $811 AUD|Avg: $640 AUD|-11.4%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
November 6, 2026
Retailer 2$553 AUD
Retailer 3$575 AUD
Retailer 4$620 AUD
77 Diamonds$705 AUD

42 data points across 4 retailers

4 retailers$553 AUD to $705 AUD

A
Cheapest Retailer
-
$553 AUD
A
Retailer 2
-
$575 AUD
View
Final sale: no returns
B+
Retailer 3
-
$620 AUD
View
Most Expensive
B+
77 Diamonds
HSCPPFW7TG2Y · Nov 6
$705 AUD
£382 GBP
View
3 more retailers have this diamond
Prices start from $553 AUDSave up to $152 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
$553 AUD