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Heart|Natural|GIA

0.55ct I SI1 Heart Natural Diamond

GD • I/SI1 • GIA 2537876660

Certificate GIA 2537876660

Diamond specifications and retailer prices

From $522 AUD
As of November 6, 2026
Save $176 AUD (25%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $699 AUD at Blue Nile · As of November 5, 2026
View at Blue Nile

About this 0.55ct natural heart diamond

This 0.55ct 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 2537876660. Listed at 2 retailers as of November 5, 2026, with prices from $522 to $699, a $176 spread on the same certified stone. Blue Nile lists it at $699. 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
I
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2537876660
Dimensions4.93 × 5.78 × 3.42 mm
L/W Ratio1.17
Culet sizeNone
Key to symbols
Cloud, Crystal
Top View
4.93 mm5.78 mm0.55 ctI / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2537876660
Side View
Table 58.0%CrownGirdle: THN-THKPavilionCulet: NoneDepth 59.1%

Caratlytics Score

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

Price History

Last verified: Nov 6
Current: $699 AUD|Low: $480 AUD|High: $802 AUD|Avg: $628 AUD|-12.9%
Blue Nile
Retailer 2
October 31, 2026
Retailer 2$522 AUD
Blue Nile$699 AUD

7 data points across 2 retailers

2 retailers$522 AUD to $699 AUD

A
Cheapest Retailer
-
$522 AUD
Final sale: no returns
Most Expensive
B+
Blue Nile
27349547 · Nov 5
$699 AUD
$480 USD
View
1 more retailer has this diamond
Prices start from $522 AUDSave up to $176 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
0.55ct Heart
$522 AUD