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Round|Natural|GIA

0.30ct F I1 Round Natural Diamond

VG • F/I1 • GIA 6391135313

Certificate GIA 6391135313

Diamond specifications and retailer prices

From £153 GBP
HK$1,600 HKD
As of November 1, 2026
Save £663 GBP (81%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £816 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 F colour (colourless) and I1 clarity (included), with a very-good cut grade and certified by GIA 6391135313. Listed at 9 retailers as of November 1, 2026, with prices from £153 to £816, a £663 spread on the same certified stone. NZ Jewellers lists it at £816. 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
F
Colour
I1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryGood
FluorescenceNone
Crown angle33°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 6391135313
Dimensions4.25 × 4.28 × 2.62 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Top View
4.25 mm4.28 mm0.30 ctF / I1
OriginNatural
CutVery Good
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 6391135313
Side View
Table 60.0%Crown 33°Girdle: NULPavilion 41.2°Culet: NoneDepth 61.4%

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: Nov 1
Current: £308 GBP|Low: £185 GBP|High: £332 GBP|Avg: £267 GBP|+3.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 1, 2026
Retailer 2£187 GBP
Retailer 4£239 GBP
Retailer 5£272 GBP
Retailer 1£308 GBP
Retailer 3£332 GBP

16 data points across 5 retailers

9 retailers£153 GBP to £816 GBP

B+
Cheapest Retailer
-
£153 GBP
HK$1,600 HKD
B+
Retailer 2
-
£180 GBP
$242 USD
View
B+
Retailer 3
-
£194 GBP
$260 USD
View
B+
Retailer 4
-
£201 GBP
$270 USD
View
B+
Retailer 5
-
£239 GBP
$321 USD
View
B+
Retailer 6
-
£242 GBP
$325 USD
View
B
Retailer 7
-
£308 GBP
€394 EUR
View
B
Retailer 8
-
£332 GBP
$445 USD
View
Most Expensive
C
NZ Jewellers
bd603258-5191-4b1e-984b-1a7612e3994c · Nov 2
£816 GBP
$1,095 USD
View
8 more retailers have this diamond
Prices start from £153 GBPSave up to £663 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
£153 GBP