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Heart|Natural|GIA

0.51ct I SI1 Heart Natural Diamond

GD • I/SI1 • GIA 6532424872

Certificate GIA 6532424872

Diamond specifications and retailer prices

From $506 AUD
As of November 6, 2026
Save $167 AUD (25%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $674 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6532424872. Listed at 3 retailers as of November 6, 2026, with prices from $506 to $674, a $167 spread on the same certified stone. 77 Diamonds lists it at $674. 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
I
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6532424872
Dimensions4.90 × 5.69 × 3.14 mm
L/W Ratio1.16
Top View
4.90 mm5.69 mm0.51 ctI / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6532424872
Side View
Table 61.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 55.2%

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: $674 AUD|Low: $458 AUD|High: $701 AUD|Avg: $581 AUD|-2.0%
77 Diamonds
Retailer 2
Retailer 3
November 6, 2026
Retailer 2$506 AUD
Retailer 3$538 AUD
77 Diamonds$674 AUD

41 data points across 3 retailers

3 retailers$506 AUD to $674 AUD

A
Cheapest Retailer
-
$506 AUD
Final sale: no returns
B+
Retailer 2
-
$538 AUD
View
Most Expensive
B+
77 Diamonds
HSCPRNXMPBVY · Nov 6
$674 AUD
£364 GBP
View
2 more retailers have this diamond
Prices start from $506 AUDSave up to $167 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
$506 AUD