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Heart|Natural|GIA

0.51ct D SI1 Heart Natural Diamond

GD • D/SI1 • GIA 3535478628

Certificate GIA 3535478628

Diamond specifications and retailer prices

From $651 AUD
As of November 6, 2026
Save $177 AUD (21%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $828 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 D colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 3535478628. Listed at 4 retailers as of November 6, 2026, with prices from $651 to $828, a $177 spread on the same certified stone. 77 Diamonds lists it at $828. 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
D
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryVery Good
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 3535478628
Dimensions4.83 × 5.68 × 3.28 mm
L/W Ratio1.18
Top View
4.83 mm5.68 mm0.51 ctD / SI1
OriginNatural
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceStrong
CertificateGIA 3535478628
Side View
Table 61.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 57.7%

Caratlytics Score

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

Last verified: Nov 6
Current: $828 AUD|Low: $591 AUD|High: $888 AUD|Avg: $734 AUD|-5.0%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
November 6, 2026
Retailer 4$651 AUD
Retailer 2$669 AUD
Retailer 3$731 AUD
77 Diamonds$828 AUD

42 data points across 4 retailers

4 retailers$651 AUD to $828 AUD

A
Cheapest Retailer
-
$651 AUD
A
Retailer 2
-
$669 AUD
View
Final sale: no returns
B+
Retailer 3
-
$731 AUD
View
Most Expensive
B+
77 Diamonds
HSCPUEHHRWVD · Nov 6
$828 AUD
£448 GBP
View
3 more retailers have this diamond
Prices start from $651 AUDSave up to $177 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
$651 AUD