Round|Natural|GIA

0.33ct K SI2 Round Natural Diamond

EX • K/SI2 • GIA 6521428143

Certificate GIA 6521428143

Diamond specifications and retailer prices

From $179 USD
As of November 6, 2026
Save $752 USD (81%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $931 USD 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 $179 to $931, a $752 spread on the same certified stone. NZ Jewellers lists it at $931. 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
Color
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: $420 USD|Low: $148 USD|High: $509 USD|Avg: $332 USD|-0.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 8$148 USD
Retailer 7$179 USD
Retailer 3$219 USD
Retailer 4$304 USD
Retailer 2$335 USD
Retailer 5$418 USD
Retailer 1$420 USD
Retailer 6$473 USD

39 data points across 8 retailers

9 retailers$179 USD to $931 USD

Retailer 1
-
$148 USD
Price last confirmed 13 days ago
A
Retailer 2
-
$179 USD
View
A
Retailer 3
-
$219 USD
View
A
Retailer 4
-
$304 USD
View
B+
Retailer 5
-
$335 USD
View
B
Retailer 6
-
$418 USD
View
B+
Retailer 7
-
$420 USD
View
B+
Retailer 8
-
$473 USD
View
Most Expensive
B
NZ Jewellers
4e5895de-ac02-40b2-b464-72e6ae154bdf · Nov 4
$931 USD
View
8 more retailers have this diamond
Prices start from $179 USDSave up to $752 USD

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
$179 USD