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Round|Natural|IGI

0.30ct H I1 Round Natural Diamond

VG • H/I1 • IGI 485142472

Shape and cutting style on the report: Round brilliant

Certificate IGI 485142472

Diamond specifications and retailer prices

From £123 GBP
$165 USD
As of October 31, 2026
Save £434 GBP (78%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £558 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 H colour (near-colourless) and I1 clarity (included), with a very-good cut grade and certified by IGI 485142472. Listed at 8 retailers as of October 29, 2026, with prices from £123 to £558, a £434 spread on the same certified stone. NZ Jewellers lists it at £558. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.30
Carat
H
Colour
I1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle32.4°
Pavilion angle40.2°
OriginNatural
Grading LabIGI
CertificateIGI 485142472
Dimensions4.27 × 4.30 × 2.61 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
4.27 mm4.30 mm0.30 ctH / I1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI 485142472
Side View
Table 56.5%Crown 32.4°Girdle: UNDPavilion 40.2°Culet: NoneDepth 61.0%

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: Oct 31
Current: £226 GBP|Low: £118 GBP|High: £226 GBP|Avg: £170 GBP|+4.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
October 30, 2026
Retailer 2£119 GBP
Retailer 3£155 GBP
Retailer 4£188 GBP
Retailer 1£226 GBP

21 data points across 4 retailers

8 retailers£123 GBP to £558 GBP

B+
Cheapest Retailer
-
£123 GBP
$165 USD
B+
Retailer 2
-
£133 GBP
$178 USD
View
B+
Retailer 3
-
£137 GBP
$184 USD
View
B+
Retailer 4
-
£150 GBP
$202 USD
View
B+
Retailer 5
-
£155 GBP
$207 USD
View
B+
Retailer 6
-
£166 GBP
$222 USD
View
B+
Retailer 7
-
£226 GBP
€288 EUR
View
Most Expensive
C
NZ Jewellers
490f0955-b332-485f-b9b6-9521d996f03e · Oct 29
£558 GBP
$747 USD
View
7 more retailers have this diamond
Prices start from £123 GBPSave up to £434 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+
0.30ct Round
£123 GBP