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Round|Natural|GIA

0.54ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 1559834371

Certificate GIA 1559834371

Diamond specifications and retailer prices

From $662 AUD
As of November 6, 2026
Save $1,333 AUD (67%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $3,001 AUD at NZ Jewellers · As of September 15, 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 1559834371. Listed at 22 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

0.54
Carat
H
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 1559834371
Dimensions5.24 × 5.27 × 3.21 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Top View
5.24 mm5.27 mm0.54 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1559834371
Side View
Table 57.0%Crown 35.5°Girdle: THN-STKPavilion 40.6°Culet: NoneDepth 61.1%

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: $798 AUD|Low: $662 AUD|High: $2,171 AUD|Avg: $1,071 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
Retailer 14
Retailer 15
Retailer 16
November 6, 2026
Retailer 9$662 AUD
Retailer 7$763 AUD
Retailer 1$798 AUD
Retailer 5$798 AUD
Retailer 4$800 AUD
Retailer 3$867 AUD
Retailer 11$875 AUD
Retailer 6$950 AUD
Retailer 8$952 AUD
Retailer 10$1,046 AUD
Retailer 2$1,052 AUD
Retailer 16$1,142 AUD
Retailer 15$1,147 AUD
Retailer 14$1,202 AUD
Retailer 12$1,335 AUD
Retailer 13$1,995 AUD

31 data points across 16 retailers

22 retailers$662 AUD to $1,995 AUD

A
Cheapest Retailer
-
$662 AUD
A
Retailer 2
-
$763 AUD
View
A
Retailer 3
-
$798 AUD
View
A
Retailer 4
-
$798 AUD
View
Final sale: no returns
A
Retailer 5
-
$800 AUD
View
A
Retailer 6
-
$867 AUD
View
A
Retailer 7
-
$875 AUD
View
Retailer 8
-
$940 AUD
View
Price last confirmed 60 days ago
Retailer 9
-
$950 AUD
View
Price last confirmed 22 days ago
Retailer 10
-
$952 AUD
View
Price last confirmed 12 days ago
Retailer 11
-
$958 AUD
View
Price last confirmed 53 days ago
A
Retailer 12
-
$1,046 AUD
View
A
Retailer 13
-
$1,052 AUD
View
Retailer 14
-
$1,086 AUD
View
Price last confirmed 60 days ago
Retailer 15
-
$1,105 AUD
View
Price last confirmed 53 days ago
B+
Retailer 16
-
$1,142 AUD
View
B+
Retailer 17
-
$1,147 AUD
View
B+
Retailer 18
-
$1,202 AUD
View
B+
Retailer 19
-
$1,335 AUD
View
Retailer 20
-
$1,400 AUD
View
Price last confirmed 33 days ago
B
Retailer 21
-
$1,995 AUD
View
Most Expensive
NZ Jewellers
2f4dc8df-35c7-4254-b399-7c0af71b052b · Sep 15
$3,001 AUD
$2,062 USD
View
Price last confirmed 52 days ago
21 more retailers have this diamond
Prices start from $662 AUDSave up to $1,333 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
$662 AUD