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Round|Natural|GIA

0.30ct J I1 Round Natural Diamond

EX • J/I1 • GIA 2414857661

Certificate GIA 2414857661

Diamond specifications and retailer prices

From £124 GBP
HK$1,300 HKD
As of November 1, 2026
Save £533 GBP (81%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £658 GBP at NZ Jewellers · As of November 2, 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 2414857661. Listed at 9 retailers as of November 1, 2026, with prices from £124 to £658, a £533 spread on the same certified stone. NZ Jewellers lists it at £658. 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
FluorescenceNone
Crown angle33°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 2414857661
Dimensions4.38 × 4.39 × 2.61 mm
L/W Ratio1.00
Star length45%
Lower girdle75%
Top View
4.38 mm4.39 mm0.30 ctJ / I1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2414857661
Side View
Table 60.0%Crown 33°Girdle: NULPavilion 40.8°Culet: NoneDepth 59.4%

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: £257 GBP|Low: £144 GBP|High: £299 GBP|Avg: £221 GBP|+3.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 1, 2026
Retailer 2£145 GBP
Retailer 3£186 GBP
Retailer 5£219 GBP
Retailer 1£257 GBP
Retailer 4£299 GBP

20 data points across 5 retailers

9 retailers£124 GBP to £658 GBP

A
Cheapest Retailer
-
£124 GBP
HK$1,300 HKD
B+
Retailer 2
-
£145 GBP
$194 USD
View
B+
Retailer 3
-
£156 GBP
$209 USD
View
B+
Retailer 4
-
£162 GBP
$217 USD
View
Retailer 5
-
£181 GBP
$242 USD
View
Price last confirmed 7 days ago
B+
Retailer 6
-
£186 GBP
$250 USD
View
B+
Retailer 7
-
£196 GBP
$262 USD
View
B+
Retailer 8
-
£257 GBP
€328 EUR
View
Most Expensive
C
NZ Jewellers
75318484-01d8-401c-8d42-976656b53824 · Nov 2
£658 GBP
$881 USD
View
8 more retailers have this diamond
Prices start from £124 GBPSave up to £533 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
£124 GBP