CaratHunter
Plans
Round|Natural|GIA

0.33ct K SI2 Round Natural Diamond

EX • K/SI2 • GIA 6521428143

Certificate GIA 6521428143

Diamond specifications and retailer prices

From £133 GBP
As of November 6, 2026
Save £559 GBP (81%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £692 GBP 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 £133 to £692, a £559 spread on the same certified stone. NZ Jewellers lists it at £692. 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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £312 GBP|Low: £110 GBP|High: £378 GBP|Avg: £247 GBP|-0.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 8£110 GBP
Retailer 7£133 GBP
Retailer 3£163 GBP
Retailer 4£226 GBP
Retailer 2£249 GBP
Retailer 5£311 GBP
Retailer 1£312 GBP
Retailer 6£351 GBP

39 data points across 8 retailers

9 retailers£133 GBP to £692 GBP

Retailer 1
-
£110 GBP
Price last confirmed 13 days ago
A
Retailer 2
-
£133 GBP
View
A
Retailer 3
-
£163 GBP
View
A
Retailer 4
-
£226 GBP
View
B+
Retailer 5
-
£249 GBP
View
B
Retailer 6
-
£311 GBP
View
B+
Retailer 7
-
£312 GBP
View
B+
Retailer 8
-
£351 GBP
View
Most Expensive
B
NZ Jewellers
4e5895de-ac02-40b2-b464-72e6ae154bdf · Nov 4
£692 GBP
$931 USD
View
8 more retailers have this diamond
Prices start from £133 GBPSave up to £559 GBP

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
£133 GBP