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Round|Natural|GIA

0.53ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 1543437554

Certificate GIA 1543437554

Diamond specifications and retailer prices

From $506 AUD
As of November 6, 2026
Save $2,138 AUD (81%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $2,644 AUD at NZ Jewellers · As of November 4, 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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1543437554. Listed at 12 retailers as of November 4, 2026, with prices from $506 to $2,644, a $2,138 spread on the same certified stone. NZ Jewellers lists it at $2,644. 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
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 1543437554
Dimensions5.15 × 5.18 × 3.24 mm
L/W Ratio1.01
Girdle conditionFaceted
Key to symbols
Crystal
Top View
5.15 mm5.18 mm0.53 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1543437554
Side View
Table 57.0%Crown 36°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 62.7%

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 6
Current: $2,644 AUD|Low: $506 AUD|High: $2,644 AUD|Avg: $1,017 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
November 6, 2026
Retailer 2$506 AUD
Retailer 4$614 AUD
Retailer 10$619 AUD
Retailer 5$700 AUD
Retailer 8$848 AUD
Retailer 13$881 AUD
Retailer 6$888 AUD
Retailer 3$902 AUD
Retailer 7$939 AUD
Retailer 12$990 AUD
Retailer 9$1,070 AUD
Retailer 11$1,591 AUD
NZ Jewellers$2,644 AUD

18 data points across 13 retailers

12 retailers$506 AUD to $2,644 AUD

A
Cheapest Retailer
-
$506 AUD
Retailer 2
-
$614 AUD
View
Price last confirmed 39 days ago
A
Retailer 3
-
$619 AUD
View
B+
Retailer 4
-
$848 AUD
View
B+
Retailer 5
-
$881 AUD
View
B+
Retailer 6
-
$888 AUD
View
B+
Retailer 7
-
$902 AUD
View
B+
Retailer 8
-
$939 AUD
View
B+
Retailer 9
-
$990 AUD
View
B+
Retailer 10
-
$1,070 AUD
View
B
Retailer 11
-
$1,591 AUD
View
Most Expensive
B
NZ Jewellers
8b9560bd-f81f-4de2-b317-33e2caaca756 · Nov 4
$2,644 AUD
$1,817 USD
View
11 more retailers have this diamond
Prices start from $506 AUDSave up to $2,138 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
$506 AUD