Round|Natural|GIA

0.30ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 6541265604

Certificate GIA 6541265604

Diamond specifications and retailer prices

From £104 GBP
As of November 6, 2026
Save £589 GBP (85%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £693 GBP at NZ Jewellers · As of November 4, 2026
View at NZ Jewellers

About this 0.3ct natural round diamond

This 0.3ct natural round sits in the sub-half-carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6541265604. Listed at 16 retailers as of November 4, 2026, with prices from £104 to £693, a £589 spread on the same certified stone. NZ Jewellers lists it at £693. 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

0.30
Carat
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 6541265604
Dimensions4.31 × 4.28 × 2.66 mm
L/W Ratio1.01
Top View
4.31 mm4.28 mm0.30 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6541265604
Side View
Table 58.0%Crown 36°Girdle: Sli. ThickPavilion 41°Culet: NDepth 62.0%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 6
Current: £693 GBP|Low: £104 GBP|High: £702 GBP|Avg: £238 GBP|-1.3%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
November 6, 2026
Retailer 2£104 GBP
Retailer 7£133 GBP
Retailer 3£153 GBP
Retailer 5£166 GBP
Retailer 4£167 GBP
Retailer 12£171 GBP
Retailer 6£196 GBP
Retailer 15£206 GBP
Retailer 9£227 GBP
Retailer 11£238 GBP
Retailer 13£250 GBP
Retailer 8£308 GBP
Retailer 10£312 GBP
Retailer 14£352 GBP
NZ Jewellers£693 GBP

21 data points across 15 retailers

16 retailers£104 GBP to £693 GBP

A
Cheapest Retailer
-
£104 GBP
A
Retailer 2
-
£133 GBP
View
A
Retailer 3
-
£153 GBP
View
Retailer 4
-
£166 GBP
View
Price last confirmed 10 days ago
Retailer 5
-
£167 GBP
View
Price last confirmed 8 days ago
A
Retailer 6
-
£171 GBP
View
Retailer 7
-
£196 GBP
View
Price last confirmed 11 days ago
Retailer 8
-
£200 GBP
View
Price last confirmed 12 days ago
A
Retailer 9
-
£206 GBP
View
B+
Retailer 10
-
£227 GBP
View
B+
Retailer 11
-
£238 GBP
View
B+
Retailer 12
-
£250 GBP
View
B+
Retailer 13
-
£308 GBP
View
B+
Retailer 14
-
£312 GBP
View
B
Retailer 15
-
£352 GBP
View
Most Expensive
B
NZ Jewellers
a929dcb3-0b0d-4ad4-bedb-fbfa94efbc24 · Nov 4
£693 GBP
$933 USD
View
15 more retailers have this diamond
Prices start from £104 GBPSave up to £589 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
0.30ct Round
£104 GBP