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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 $1,183 NZD
As of November 4, 2026
Save $1,779 NZD (60%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $4,023 NZD 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 18 retailers as of November 1, 2026, with a 150% 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: $1,513 NZD|Low: $987 NZD|High: $2,996 NZD|Avg: $1,709 NZD|+4.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 8$1,183 NZD
Retailer 5$1,263 NZD
Retailer 10$1,331 NZD
Retailer 2$1,441 NZD
Retailer 1$1,513 NZD
Retailer 7$1,605 NZD
Retailer 3$1,806 NZD
Retailer 9$1,928 NZD
Retailer 4$1,979 NZD
Retailer 6$2,962 NZD

45 data points across 10 retailers

18 retailers$1,183 NZD to $2,962 NZD

A
Cheapest Retailer
-
$1,183 NZD
Final sale: no returns
A
Retailer 2
-
$1,263 NZD
View
Retailer 3
-
$1,283 NZD
View
Price last confirmed 60 days ago
Retailer 4
-
$1,283 NZD
View
Price last confirmed 8 days ago
Retailer 5
-
$1,283 NZD
View
Price last confirmed 53 days ago
B+
Retailer 6
-
$1,331 NZD
View
Retailer 7
-
$1,441 NZD
View
Price last confirmed 26 days ago
Retailer 8
-
$1,479 NZD
View
Price last confirmed 60 days ago
Retailer 9
-
$1,479 NZD
View
Price last confirmed 10 days ago
B+
Retailer 10
-
$1,513 NZD
View
B+
Retailer 11
-
$1,605 NZD
View
B
Retailer 12
-
$1,757 NZD
View
B+
Retailer 13
-
$1,806 NZD
View
Retailer 14
-
$1,928 NZD
View
Price last confirmed 33 days ago
B
Retailer 15
-
$1,979 NZD
View
B
Retailer 16
-
$2,962 NZD
View
Retailer 17
-
$4,023 NZD
View
Price last confirmed 7 days ago
Most Expensive
NZ Jewellers
6e4e990d-07a8-43aa-a141-85324760ba7a · Sep 1
$4,023 NZD
$2,230 USD
View
Price last confirmed 66 days ago
17 more retailers have this diamond
Prices start from $1,183 NZDSave up to $1,779 NZD

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
$1,183 NZD