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Round|Natural|GIA

0.55ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 7558664761

Certificate GIA 7558664761

Diamond specifications and retailer prices

From $745 AUD
As of November 6, 2026
Save $2,321 AUD (76%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $3,339 AUD at NZ Jewellers · As of October 17, 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 7558664761. Listed at 23 retailers as of November 5, 2026, with a 312% 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
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle41.8°
OriginNatural
Grading LabGIA
CertificateGIA 7558664761
Dimensions5.21 × 5.25 × 3.28 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Cloud, Crystal
Top View
5.21 mm5.25 mm0.55 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7558664761
Side View
Table 59.0%Crown 34.5°Girdle: MED-STKPavilion 41.8°Culet: NoneDepth 62.7%

Caratlytics Score

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

Price History

Last verified: Nov 6
Current: $1,284 AUD|Low: $745 AUD|High: $1,974 AUD|Avg: $1,383 AUD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 7, 2026
Retailer 4$745 AUD
Retailer 6$1,202 AUD
Retailer 3$1,230 AUD
Retailer 10$1,230 AUD
Retailer 13$1,257 AUD
Retailer 7$1,278 AUD
Retailer 1$1,284 AUD
Retailer 11$1,371 AUD
Retailer 9$1,378 AUD
Retailer 8$1,486 AUD
Retailer 5$1,601 AUD
Retailer 2$1,643 AUD
Retailer 12$1,939 AUD

35 data points across 13 retailers

23 retailers$745 AUD to $3,067 AUD

A
Cheapest Retailer
-
$745 AUD
Final sale: no returns
A
Retailer 2
-
$946 AUD
View
A
Retailer 3
-
$965 AUD
View
Retailer 4
-
$965 AUD
View
Price last confirmed 67 days ago
A
Retailer 5
-
$988 AUD
View
A
Retailer 6
-
$1,001 AUD
View
Retailer 7
-
$1,113 AUD
View
Price last confirmed 46 days ago
B+
Retailer 8
-
$1,122 AUD
View
B+
Retailer 9
-
$1,183 AUD
View
B+
Retailer 10
-
$1,202 AUD
View
B+
Retailer 11
-
$1,230 AUD
View
B+
Retailer 12
-
$1,230 AUD
View
B+
Retailer 13
-
$1,257 AUD
View
B+
Retailer 14
-
$1,284 AUD
View
B+
Retailer 15
-
$1,354 AUD
View
B+
Retailer 16
-
$1,371 AUD
View
B+
Retailer 17
-
$1,378 AUD
View
B+
Retailer 18
-
$1,486 AUD
View
Retailer 19
-
$1,601 AUD
View
Price last confirmed 34 days ago
B
Retailer 20
-
$1,643 AUD
View
B
Retailer 21
-
$1,939 AUD
View
B
Retailer 22
-
$3,067 AUD
View
Most Expensive
NZ Jewellers
33d5d57e-58f1-43b5-a39e-e162d4dc664d · Oct 17
$3,339 AUD
$2,294 USD
View
Price last confirmed 21 days ago
22 more retailers have this diamond
Prices start from $745 AUDSave up to $2,321 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
$745 AUD