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Round|Natural|GIA

0.33ct K SI2 Round Natural Diamond

EX • K/SI2 • GIA 6521428143

Certificate GIA 6521428143

Diamond specifications and retailer prices

From $256 AUD
As of November 6, 2026
Save $1,074 AUD (81%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $1,330 AUD at NZ Jewellers · As of November 4, 2026
View at NZ Jewellers

About this 0.33ct natural round diamond

This 0.33ct natural round sits in the sub-half-carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6521428143. Listed at 9 retailers as of November 4, 2026, with prices from $256 to $1,330, a $1,074 spread on the same certified stone. NZ Jewellers lists it at $1,330. 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

0.33
Carat
K
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle32°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 6521428143
Dimensions4.50 × 4.53 × 2.73 mm
L/W Ratio1.01
Top View
4.50 mm4.53 mm0.33 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6521428143
Side View
Table 56.0%Crown 32°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 60.6%

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: $600 AUD|Low: $211 AUD|High: $727 AUD|Avg: $474 AUD|-0.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 8$211 AUD
Retailer 7$256 AUD
Retailer 3$313 AUD
Retailer 4$434 AUD
Retailer 2$479 AUD
Retailer 5$597 AUD
Retailer 1$600 AUD
Retailer 6$676 AUD

39 data points across 8 retailers

9 retailers$256 AUD to $1,330 AUD

Retailer 1
-
$211 AUD
Price last confirmed 13 days ago
A
Retailer 2
-
$256 AUD
View
A
Retailer 3
-
$313 AUD
View
A
Retailer 4
-
$434 AUD
View
B+
Retailer 5
-
$479 AUD
View
B
Retailer 6
-
$597 AUD
View
B+
Retailer 7
-
$600 AUD
View
B+
Retailer 8
-
$676 AUD
View
Most Expensive
B
NZ Jewellers
4e5895de-ac02-40b2-b464-72e6ae154bdf · Nov 4
$1,330 AUD
$931 USD
View
8 more retailers have this diamond
Prices start from $256 AUDSave up to $1,074 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
0.33ct Round
$256 AUD