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Round|Natural|GIA

0.55ct H SI2 Round Natural Diamond

EX • H/SI2 • GIA 1557129599

Certificate GIA 1557129599

Diamond specifications and retailer prices

From $786 AUD
As of November 5, 2026
Save $664 AUD (46%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $1,450 AUD at Frank Darling · As of November 6, 2026
View at Frank Darling

About this 0.55ct natural round diamond

This 0.55ct natural round sits in the half to three-quarter carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1557129599. Listed at 11 retailers as of November 5, 2026, with prices from $786 to $1,450, a $664 spread on the same certified stone. Frank Darling lists it at $1,450. 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
H
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 1557129599
Dimensions5.33 × 3.19 × 3.19 mm
L/W Ratio1.67
Culet sizeNone
Top View
5.33 mm3.19 mm0.55 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1557129599
Side View
Table 59.0%Crown 32°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 59.7%

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 5
Current: $1,450 AUD|Low: $786 AUD|High: $1,466 AUD|Avg: $1,103 AUD|-1.1%
Frank Darling
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 9$786 AUD
Retailer 10$844 AUD
Retailer 4$910 AUD
Retailer 3$977 AUD
Retailer 7$1,096 AUD
Retailer 5$1,176 AUD
Retailer 6$1,179 AUD
Retailer 2$1,237 AUD
Retailer 8$1,254 AUD
Frank Darling$1,450 AUD

41 data points across 10 retailers

11 retailers$786 AUD to $1,450 AUD

A
Cheapest Retailer
-
$786 AUD
A
Retailer 2
-
$844 AUD
View
A
Retailer 3
-
$910 AUD
View
A
Retailer 4
-
$977 AUD
View
B+
Retailer 5
-
$1,004 AUD
View
B+
Retailer 6
-
$1,096 AUD
View
B+
Retailer 7
-
$1,176 AUD
View
B+
Retailer 8
-
$1,179 AUD
View
B+
Retailer 9
-
$1,237 AUD
View
B+
Retailer 10
-
$1,254 AUD
View
Most Expensive
B+
Frank Darling
2628440HK · Nov 6
$1,450 AUD
$1,015 USD
View
10 more retailers have this diamond
Prices start from $786 AUDSave up to $664 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
$786 AUD