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Round|Natural|GIA

0.53ct H SI2 Round Natural Diamond

EX • H/SI2 • GIA 5556985026

Certificate GIA 5556985026

Diamond specifications and retailer prices

From $599 AUD
As of November 6, 2026
Save $1,270 AUD (68%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $2,604 AUD at NZ Jewellers · As of October 17, 2026
View at NZ Jewellers

About this 0.53ct natural round diamond

This 0.53ct 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 5556985026. Listed at 15 retailers as of November 4, 2026, with a 212% 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

0.53
Carat
H
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 5556985026
Dimensions5.14 × 5.18 × 3.24 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Top View
5.14 mm5.18 mm0.53 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5556985026
Side View
Table 56.0%Crown 35.5°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 62.8%

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: $599 AUD|Low: $599 AUD|High: $1,937 AUD|Avg: $964 AUD|-6.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 1$599 AUD
Retailer 3$694 AUD
Retailer 11$694 AUD
Retailer 2$747 AUD
Retailer 8$807 AUD
Retailer 4$849 AUD
Retailer 5$981 AUD
Retailer 7$1,006 AUD
Retailer 6$1,096 AUD
Retailer 10$1,129 AUD
Retailer 9$1,868 AUD

28 data points across 11 retailers

15 retailers$599 AUD to $1,868 AUD

A
Cheapest Retailer
-
$599 AUD
A
Retailer 2
-
$694 AUD
View
A
Retailer 3
-
$694 AUD
View
A
Retailer 4
-
$747 AUD
View
Final sale: no returns
A
Retailer 5
-
$807 AUD
View
A
Retailer 6
-
$849 AUD
View
Retailer 7
-
$871 AUD
View
Price last confirmed 53 days ago
Retailer 8
-
$894 AUD
View
Price last confirmed 22 days ago
A
Retailer 9
-
$981 AUD
View
Retailer 10
-
$1,006 AUD
View
Price last confirmed 53 days ago
A
Retailer 11
-
$1,006 AUD
View
B+
Retailer 12
-
$1,096 AUD
View
B+
Retailer 13
-
$1,129 AUD
View
B
Retailer 14
-
$1,868 AUD
View
Most Expensive
NZ Jewellers
f7958269-21c6-43bc-b17d-59437b9b4b74 · Oct 17
$2,604 AUD
$1,823 USD
View
Price last confirmed 20 days ago
14 more retailers have this diamond
Prices start from $599 AUDSave up to $1,270 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
0.53ct Round
$599 AUD