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Heart|Natural|GIA

0.51ct G SI2 Heart Natural Diamond

GD • G/SI2 • GIA 3525080921

Certificate GIA 3525080921

Diamond specifications and retailer prices

From $543 AUD
As of November 6, 2026
Save $124 AUD (19%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $667 AUD 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 G 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 3525080921. Listed at 3 retailers as of November 6, 2026, with prices from $543 to $667, a $124 spread on the same certified stone. 77 Diamonds lists it at $667. 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
G
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 3525080921
Dimensions5.02 × 5.55 × 3.30 mm
L/W Ratio1.11
Top View
5.02 mm5.55 mm0.51 ctG / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3525080921
Side View
Table 59.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 59.5%

Caratlytics Score

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

Last verified: Nov 6
Current: $667 AUD|Low: $496 AUD|High: $760 AUD|Avg: $617 AUD|-10.5%
77 Diamonds
Retailer 2
Retailer 3
November 7, 2026
Retailer 2$543 AUD
Retailer 3$582 AUD
77 Diamonds$667 AUD

42 data points across 3 retailers

3 retailers$543 AUD to $667 AUD

A
Cheapest Retailer
-
$543 AUD
Final sale: no returns
A
Retailer 2
-
$582 AUD
View
Most Expensive
B+
77 Diamonds
HSCPUQMTXDAG · Nov 7
$667 AUD
£361 GBP
View
2 more retailers have this diamond
Prices start from $543 AUDSave up to $124 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
$543 AUD