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Round|Natural|GIA

0.54ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 6492718399

Certificate GIA 6492718399

Diamond specifications and retailer prices

From $1,377 AUD
As of November 6, 2026
Save $1,339 AUD (49%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $3,639 AUD at NZ Jewellers · As of October 30, 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 6492718399. Listed at 16 retailers as of November 6, 2026, with a 97% 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 angle33.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 6492718399
Dimensions5.22 × 5.20 × 3.24 mm
L/W Ratio1.00
Star length45%
Lower girdle80%
Top View
5.22 mm5.20 mm0.54 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6492718399
Side View
Table 55.0%Crown 33.5°Girdle: Slightly ThickPavilion 41°Culet: NoneDepth 62.1%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $3,639 AUD|Low: $1,262 AUD|High: $3,639 AUD|Avg: $1,905 AUD
NZ Jewellers
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
November 7, 2026
Retailer 3$1,377 AUD
Retailer 13$1,412 AUD
Retailer 7$1,458 AUD
Retailer 6$1,492 AUD
Retailer 5$1,496 AUD
Retailer 15$1,549 AUD
Retailer 8$1,581 AUD
Retailer 14$1,722 AUD
Retailer 2$1,803 AUD
Retailer 10$1,931 AUD
Retailer 4$1,950 AUD
Retailer 9$2,080 AUD
Retailer 12$2,302 AUD
Retailer 11$2,716 AUD
NZ Jewellers$3,639 AUD

43 data points across 15 retailers

16 retailers$1,377 AUD to $2,716 AUD

B+
Cheapest Retailer
-
$1,377 AUD
Final sale: no returns
B+
Retailer 2
-
$1,412 AUD
View
Retailer 3
-
$1,457 AUD
View
Price last confirmed 54 days ago
B+
Retailer 4
-
$1,458 AUD
View
B+
Retailer 5
-
$1,492 AUD
View
B+
Retailer 6
-
$1,496 AUD
View
B+
Retailer 7
-
$1,549 AUD
View
B+
Retailer 8
-
$1,581 AUD
View
Retailer 9
-
$1,722 AUD
View
Price last confirmed 11 days ago
B
Retailer 10
-
$1,803 AUD
View
B
Retailer 11
-
$1,931 AUD
View
Retailer 12
-
$1,950 AUD
View
Price last confirmed 34 days ago
B
Retailer 13
-
$2,080 AUD
View
B
Retailer 14
-
$2,302 AUD
View
B
Retailer 15
-
$2,716 AUD
View
Most Expensive
NZ Jewellers
8e32bd4c-7954-4895-bca0-b15a6babfaa8 · Oct 30
$3,639 AUD
$2,500 USD
View
Price under review
15 more retailers have this diamond
Prices start from $1,377 AUDSave up to $1,339 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.

B+
0.54ct Round
$1,377 AUD