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Round|Natural|GIA

0.55ct F SI2 Round Natural Diamond

EX • F/SI2 • GIA 2566197610

Certificate GIA 2566197610

Diamond specifications and retailer prices

From $726 AUD
As of November 6, 2026
Save $1,461 AUD (67%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $3,346 AUD at NZ Jewellers · As of September 24, 2026
View at NZ Jewellers

About this 0.55ct natural round diamond

This 0.55ct natural round sits in the half to three-quarter carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2566197610. Listed at 15 retailers as of November 4, 2026, with a 201% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.55
Carat
F
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 2566197610
Dimensions5.19 × 5.23 × 3.25 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Top View
5.19 mm5.23 mm0.55 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2566197610
Side View
Table 58.0%Crown 35.5°Girdle: Slightly ThickPavilion 40.8°Culet: NoneDepth 62.4%

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: $726 AUD|Low: $726 AUD|High: $2,378 AUD|Avg: $1,165 AUD|-9.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 1$726 AUD
Retailer 5$819 AUD
Retailer 3$848 AUD
Retailer 7$875 AUD
Retailer 11$958 AUD
Retailer 2$1,029 AUD
Retailer 8$1,134 AUD
Retailer 4$1,151 AUD
Retailer 9$1,260 AUD
Retailer 10$1,322 AUD
Retailer 6$2,187 AUD

36 data points across 11 retailers

15 retailers$726 AUD to $2,187 AUD

A
Cheapest Retailer
-
$726 AUD
A
Retailer 2
-
$819 AUD
View
Retailer 3
-
$848 AUD
View
Price last confirmed 8 days ago
A
Retailer 4
-
$875 AUD
View
Final sale: no returns
Retailer 5
-
$958 AUD
View
Price last confirmed 9 days ago
Retailer 6
-
$1,029 AUD
View
Price last confirmed 11 days ago
Retailer 7
-
$1,067 AUD
View
Price last confirmed 30 days ago
Retailer 8
-
$1,108 AUD
View
Price last confirmed 39 days ago
A
Retailer 9
-
$1,134 AUD
View
A
Retailer 10
-
$1,151 AUD
View
Retailer 11
-
$1,231 AUD
View
Price last confirmed 29 days ago
B+
Retailer 12
-
$1,260 AUD
View
B+
Retailer 13
-
$1,322 AUD
View
B
Retailer 14
-
$2,187 AUD
View
Most Expensive
NZ Jewellers
d066c248-5048-4c7a-9907-7108ed5eaced · Sep 24
$3,346 AUD
$2,299 USD
View
Price last confirmed 43 days ago
14 more retailers have this diamond
Prices start from $726 AUDSave up to $1,461 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 Round
$726 AUD