CaratHunter
Plans
Heart|Natural|GIA

0.51ct E SI2 Heart Natural Diamond

GD • E/SI2 • GIA 1523832702

Certificate GIA 1523832702

Diamond specifications and retailer prices

From $571 AUD
As of November 6, 2026
Save $162 AUD (22%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $732 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 1523832702. Listed at 4 retailers as of November 6, 2026, with prices from $571 to $732, a $162 spread on the same certified stone. 77 Diamonds lists it at $732. 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 1523832702
Dimensions5.03 × 5.57 × 3.29 mm
L/W Ratio1.11
Culet sizeNone
Key to symbols
Crystal, Cloud
Top View
5.03 mm5.57 mm0.51 ctE / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1523832702
Side View
Table 55.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 59.0%

Caratlytics Score

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

Price History

Last verified: Nov 6
Current: $732 AUD|Low: $547 AUD|High: $838 AUD|Avg: $661 AUD|-11.0%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
November 6, 2026
Retailer 2$571 AUD
Retailer 3$592 AUD
Retailer 4$640 AUD
77 Diamonds$732 AUD

42 data points across 4 retailers

4 retailers$571 AUD to $732 AUD

A
Cheapest Retailer
-
$571 AUD
A
Retailer 2
-
$592 AUD
View
Final sale: no returns
A
Retailer 3
-
$640 AUD
View
Most Expensive
B+
77 Diamonds
HSCPVECHHUAW · Nov 6
$732 AUD
£396 GBP
View
3 more retailers have this diamond
Prices start from $571 AUDSave up to $162 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
$571 AUD