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Round|Natural|GIA

0.30ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 7566281856

Certificate GIA 7566281856

Diamond specifications and retailer prices

From £97 GBP
As of November 6, 2026
Save £547 GBP (85%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £644 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 7566281856. Listed at 17 retailers as of November 4, 2026, with prices from £97 to £644, a £547 spread on the same certified stone. NZ Jewellers lists it at £644. 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
FluorescenceFaint
Crown angle33°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 7566281856
Dimensions4.38 × 4.35 × 2.66 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Crystal
Top View
4.38 mm4.35 mm0.30 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7566281856
Side View
Table 56.0%Crown 33°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 60.9%

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: £644 GBP|Low: £97 GBP|High: £654 GBP|Avg: £227 GBP|-0.6%
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
Retailer 16
Retailer 17
November 6, 2026
Retailer 2£97 GBP
Retailer 15£105 GBP
Retailer 9£123 GBP
Retailer 7£142 GBP
Retailer 13£155 GBP
Retailer 8£155 GBP
Retailer 10£159 GBP
Retailer 17£190 GBP
Retailer 4£198 GBP
Retailer 14£207 GBP
Retailer 3£221 GBP
Retailer 12£238 GBP
Retailer 16£256 GBP
Retailer 11£284 GBP
Retailer 6£299 GBP
Retailer 5£328 GBP
NZ Jewellers£644 GBP

18 data points across 17 retailers

17 retailers£97 GBP to £644 GBP

A
Cheapest Retailer
-
£97 GBP
A
Retailer 2
-
£105 GBP
View
A
Retailer 3
-
£123 GBP
View
A
Retailer 4
-
£142 GBP
View
A
Retailer 5
-
£155 GBP
View
Retailer 6
-
£155 GBP
View
Price last confirmed 8 days ago
A
Retailer 7
-
£159 GBP
View
A
Retailer 8
-
£190 GBP
View
A
Retailer 9
-
£198 GBP
View
A
Retailer 10
-
£207 GBP
View
A
Retailer 11
-
£221 GBP
View
B+
Retailer 12
-
£238 GBP
View
B+
Retailer 13
-
£256 GBP
View
B+
Retailer 14
-
£284 GBP
View
B+
Retailer 15
-
£299 GBP
View
B+
Retailer 16
-
£328 GBP
View
Most Expensive
B
NZ Jewellers
27487429-aca4-45c3-a38f-b0dd9735acf0 · Nov 4
£644 GBP
$867 USD
View
16 more retailers have this diamond
Prices start from £97 GBPSave up to £547 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
£97 GBP