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Round|Natural|GIA

0.33ct K SI2 Round Natural Diamond

EX • K/SI2 • GIA 1558738683

Certificate GIA 1558738683

Diamond specifications and retailer prices

From £253 GBP
As of November 6, 2026
Save £137 GBP (35%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £880 GBP 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: £345 GBP|Low: £233 GBP|High: £444 GBP|Avg: £336 GBP|-14.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 2£253 GBP
Retailer 5£265 GBP
Retailer 6£322 GBP
Retailer 3£336 GBP
Retailer 1£345 GBP
Retailer 4£389 GBP

38 data points across 6 retailers

8 retailers£253 GBP to £389 GBP

B+
Cheapest Retailer
-
£253 GBP
B+
Retailer 2
-
£265 GBP
View
B
Retailer 3
-
£322 GBP
View
B
Retailer 4
-
£336 GBP
View
B+
Retailer 5
-
£345 GBP
View
B
Retailer 6
-
£389 GBP
View
Retailer 7
-
£846 GBP
View
Price last confirmed 29 days ago
Most Expensive
NZ Jewellers
b88f4f4c-f108-4a15-8a20-4285c8ba2060 · Sep 24
£880 GBP
$1,184 USD
View
Price last confirmed 43 days ago
7 more retailers have this diamond
Prices start from £253 GBPSave up to £137 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.

B+
0.33ct Round
£253 GBP