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Round|Natural|GIA

0.30ct H I1 Round Natural Diamond

EX • H/I1 • GIA 1478425124

Certificate GIA 1478425124

Diamond specifications and retailer prices

From £92 GBP
₹11,724 INR
As of October 30, 2026
Save £523 GBP (85%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £615 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 top-tier cut grade and certified by GIA 1478425124. Listed at 8 retailers as of October 29, 2026, with prices from £92 to £615, a £523 spread on the same certified stone. NZ Jewellers lists it at £615. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

0.30
Carat
H
Colour
I1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 1478425124
Dimensions4.29 × 4.27 × 2.67 mm
L/W Ratio1.00
Key to symbols
Cloud
Top View
4.29 mm4.27 mm0.30 ctH / I1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1478425124
Side View
Table 57.0%Crown 35.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.5%

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: Oct 30
Current: £92 GBP|Low: £91 GBP|High: £288 GBP|Avg: £193 GBP|-4.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
October 30, 2026
Retailer 1£92 GBP
Retailer 3£134 GBP
Retailer 4£262 GBP
Retailer 2£288 GBP

44 data points across 4 retailers

8 retailers£92 GBP to £615 GBP

A
Cheapest Retailer
-
£92 GBP
₹11,724 INR
A
Retailer 2
-
£136 GBP
$182 USD
View
A
Retailer 3
-
£146 GBP
$196 USD
View
A
Retailer 4
-
£152 GBP
$203 USD
View
B+
Retailer 5
-
£183 GBP
$245 USD
View
B
Retailer 6
-
£262 GBP
$351 USD
View
B+
Retailer 7
-
£288 GBP
€367 EUR
View
Most Expensive
B
NZ Jewellers
a5b52fe4-99b3-4730-9c81-e5f358dc5a9b · Oct 29
£615 GBP
$824 USD
View
7 more retailers have this diamond
Prices start from £92 GBPSave up to £523 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
£92 GBP