Round|Natural|GIA

0.33ct K SI2 Round Natural Diamond

EX • K/SI2 • GIA 1558738683

Certificate GIA 1558738683

Diamond specifications and retailer prices

From $486 AUD
As of November 6, 2026
Save $263 AUD (35%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $1,691 AUD at NZ Jewellers · As of September 24, 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 1558738683. Listed at 8 retailers as of November 4, 2026, with a 54% 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

0.33
Carat
K
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1558738683
Dimensions4.41 × 4.44 × 2.76 mm
L/W Ratio1.01
Top View
4.41 mm4.44 mm0.33 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1558738683
Side View
Table 57.0%CrownGirdlePavilionCulet: NoneDepth 62.5%

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: $664 AUD|Low: $447 AUD|High: $854 AUD|Avg: $645 AUD|-14.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 2$486 AUD
Retailer 5$510 AUD
Retailer 6$620 AUD
Retailer 3$646 AUD
Retailer 1$664 AUD
Retailer 4$749 AUD

38 data points across 6 retailers

8 retailers$486 AUD to $749 AUD

B+
Cheapest Retailer
-
$486 AUD
B+
Retailer 2
-
$510 AUD
View
B
Retailer 3
-
$620 AUD
View
B
Retailer 4
-
$646 AUD
View
B+
Retailer 5
-
$664 AUD
View
B
Retailer 6
-
$749 AUD
View
Retailer 7
-
$1,626 AUD
View
Price last confirmed 29 days ago
Most Expensive
NZ Jewellers
b88f4f4c-f108-4a15-8a20-4285c8ba2060 · Sep 24
$1,691 AUD
$1,184 USD
View
Price last confirmed 43 days ago
7 more retailers have this diamond
Prices start from $486 AUDSave up to $263 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+
0.33ct Round
$486 AUD