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Round|Natural|GIA

0.30ct J I1 Round Natural Diamond

EX • J/I1 • GIA 6425564498

Certificate GIA 6425564498

Diamond specifications and retailer prices

From £107 GBP
₹13,619 INR
As of November 1, 2026
Save £563 GBP (84%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £669 GBP at NZ Jewellers · As of October 29, 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 J colour (near-colourless) and I1 clarity (included), with a top-tier cut grade and certified by GIA 6425564498. Listed at 10 retailers as of October 29, 2026, with prices from £107 to £669, a £563 spread on the same certified stone. NZ Jewellers lists it at £669. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

0.30
Carat
J
Colour
I1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle34°
Pavilion angle41.8°
OriginNatural
Grading LabGIA
CertificateGIA 6425564498
Dimensions4.31 × 4.33 × 2.68 mm
L/W Ratio1.00
Star length50%
Lower girdle75%
Top View
4.31 mm4.33 mm0.30 ctJ / I1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 6425564498
Side View
Table 58.0%Crown 34°Girdle: MED-STKPavilion 41.8°Culet: NoneDepth 62.0%

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 1
Current: £260 GBP|Low: £106 GBP|High: £302 GBP|Avg: £189 GBP|+3.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 1, 2026
Retailer 2£107 GBP
Retailer 5£134 GBP
Retailer 3£148 GBP
Retailer 4£190 GBP
Retailer 1£260 GBP
Retailer 6£302 GBP

15 data points across 6 retailers

10 retailers£107 GBP to £669 GBP

A
Cheapest Retailer
-
£107 GBP
₹13,619 INR
B+
Retailer 2
-
£134 GBP
HK$1,400 HKD
View
B+
Retailer 3
-
£148 GBP
$198 USD
View
B+
Retailer 4
-
£159 GBP
$213 USD
View
B+
Retailer 5
-
£165 GBP
$221 USD
View
B+
Retailer 6
-
£185 GBP
$248 USD
View
B+
Retailer 7
-
£190 GBP
$255 USD
View
B+
Retailer 8
-
£199 GBP
$267 USD
View
B+
Retailer 9
-
£260 GBP
€332 EUR
View
Most Expensive
C
NZ Jewellers
0f82bebe-1f58-4c2c-8c0e-5f3c0459012d · Oct 29
£669 GBP
$897 USD
View
9 more retailers have this diamond
Prices start from £107 GBPSave up to £563 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
£107 GBP