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Round|Natural|GIA

0.54ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 2426593331

Certificate GIA 2426593331

Diamond specifications and retailer prices

From $955 AUD
As of November 4, 2026
Save $1,422 AUD (60%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $3,246 AUD at NZ Jewellers · As of September 1, 2026
View at NZ Jewellers

About this 0.54ct natural round diamond

This 0.54ct natural round sits in the half to three-quarter carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2426593331. Listed at 21 retailers as of November 4, 2026, with a 149% 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

0.54
Carat
H
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle34°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 2426593331
Dimensions5.26 × 5.24 × 3.18 mm
L/W Ratio1.00
Culet sizeNone
Key to symbols
Feather, Twinning Wisp
Top View
5.26 mm5.24 mm0.54 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 2426593331
Side View
Table 59.0%Crown 34°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 60.6%

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 4
Current: $1,451 AUD|Low: $796 AUD|High: $2,417 AUD|Avg: $1,378 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 2$955 AUD
Retailer 12$1,019 AUD
Retailer 4$1,074 AUD
Retailer 5$1,163 AUD
Retailer 6$1,170 AUD
Retailer 10$1,221 AUD
Retailer 13$1,295 AUD
Retailer 8$1,434 AUD
Retailer 1$1,451 AUD
Retailer 7$1,460 AUD
Retailer 3$1,556 AUD
Retailer 11$1,597 AUD
Retailer 9$2,377 AUD

45 data points across 13 retailers

21 retailers$955 AUD to $2,377 AUD

A
Cheapest Retailer
-
$955 AUD
Final sale: no returns
A
Retailer 2
-
$1,019 AUD
View
Retailer 3
-
$1,035 AUD
View
Price last confirmed 61 days ago
A
Retailer 4
-
$1,035 AUD
View
Retailer 5
-
$1,035 AUD
View
Price last confirmed 54 days ago
B+
Retailer 6
-
$1,074 AUD
View
Retailer 7
-
$1,163 AUD
View
Price last confirmed 27 days ago
B+
Retailer 8
-
$1,170 AUD
View
Retailer 9
-
$1,193 AUD
View
Price last confirmed 61 days ago
Retailer 10
-
$1,193 AUD
View
Price last confirmed 11 days ago
B+
Retailer 11
-
$1,221 AUD
View
B+
Retailer 12
-
$1,295 AUD
View
B+
Retailer 13
-
$1,418 AUD
View
B+
Retailer 14
-
$1,434 AUD
View
B+
Retailer 15
-
$1,451 AUD
View
B+
Retailer 16
-
$1,460 AUD
View
Retailer 17
-
$1,556 AUD
View
Price last confirmed 34 days ago
B
Retailer 18
-
$1,597 AUD
View
B
Retailer 19
-
$2,377 AUD
View
Retailer 20
-
$3,246 AUD
View
Price last confirmed 8 days ago
Most Expensive
NZ Jewellers
6e4e990d-07a8-43aa-a141-85324760ba7a · Sep 1
$3,246 AUD
$2,230 USD
View
Price last confirmed 67 days ago
20 more retailers have this diamond
Prices start from $955 AUDSave up to $1,422 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
0.54ct Round
$955 AUD