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Heart|Natural|GIA

0.55ct D SI2 Heart Natural Diamond

GD • D/SI2 • GIA 6531129926

Certificate GIA 6531129926

Diamond specifications and retailer prices

From $772 AUD
$542 USD
As of November 2, 2026
Save $275 AUD (26%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $1,047 AUD at 77 Diamonds · As of November 2, 2026
View at 77 Diamonds

About this 0.55ct natural heart diamond

This 0.55ct natural heart sits in the half to three-quarter carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6531129926. Listed at 2 retailers as of November 2, 2026, with prices from $772 to $1,047, a $275 spread on the same certified stone. 77 Diamonds lists it at $1,047. 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

0.55
Carat
D
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6531129926
Dimensions4.85 × 5.71 × 3.40 mm
L/W Ratio1.18
Top View
4.85 mm5.71 mm0.55 ctD / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6531129926
Side View
Table 57.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 59.5%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $1,047 AUD|Low: $644 AUD|High: $1,075 AUD|Avg: $878 AUD|-0.7%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 2, 2026
Retailer 5$644 AUD
Retailer 2$772 AUD
Retailer 4$870 AUD
77 Diamonds$1,047 AUD
Retailer 3$1,071 AUD

39 data points across 5 retailers

2 retailers$772 AUD to $1,047 AUD

B+
Cheapest Retailer
-
$772 AUD
$542 USD
Final sale: no returns
Most Expensive
B+
77 Diamonds
HSCPQHVEVHY3 · Nov 2
$1,047 AUD
£579 GBP
View
1 more retailer has this diamond
Prices start from $772 AUDSave up to $275 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.

B+
0.55ct Heart
$772 AUD