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Radiant|Natural|GIA

0.30ct F SI1 Radiant Natural Diamond

ID • F/SI1 • GIA 2557710426

Certificate GIA 2557710426

Diamond specifications and retailer prices

From £163 GBP
₹20,885 INR
As of November 2, 2026
Save £350 GBP (68%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £1,006 GBP at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 0.3ct natural radiant diamond

This 0.3ct natural radiant sits in the sub-half-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2557710426. Listed at 19 retailers as of November 2, 2026, with a 214% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.30
Carat
F
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Crown angle40.9°
Pavilion angle57.2°
OriginNatural
Grading LabGIA
CertificateGIA 2557710426
Dimensions4.58 × 3.39 × 2.25 mm
L/W Ratio1.35
Girdle conditionPolished
Culet sizeNone
Top View
4.58 mm3.39 mm0.30 ctF / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2557710426
Side View
Table 67.0%Crown 40.9°Girdle: STK-THKPavilion 57.2°Culet: NoneDepth 66.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: £1,006 GBP|Low: £163 GBP|High: £1,013 GBP|Avg: £326 GBP|-0.7%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
November 2, 2026
Retailer 12£163 GBP
Retailer 9£200 GBP
Retailer 8£200 GBP
Retailer 10£201 GBP
Retailer 4£205 GBP
Retailer 16£222 GBP
Retailer 7£240 GBP
Retailer 6£244 GBP
Retailer 2£247 GBP
Retailer 15£284 GBP
Retailer 18£299 GBP
Retailer 14£304 GBP
Retailer 3£322 GBP
Retailer 5£344 GBP
Retailer 17£345 GBP
Retailer 13£384 GBP
Retailer 11£513 GBP
NZ Jewellers£1,006 GBP

23 data points across 18 retailers

19 retailers£163 GBP to £513 GBP

A
Cheapest Retailer
-
£163 GBP
₹20,885 INR
A
Retailer 2
-
£200 GBP
$268 USD
View
A
Retailer 3
-
£200 GBP
HK$2,100 HKD
View
A
Retailer 4
-
£201 GBP
$270 USD
View
A
Retailer 5
-
£205 GBP
$275 USD
View
Final sale: no returns
A
Retailer 6
-
£222 GBP
$298 USD
View
A
Retailer 7
-
£240 GBP
$322 USD
View
Retailer 8
-
£244 GBP
SGD 442 SGD
View
Price last confirmed 7 days ago
A
Retailer 9
-
£247 GBP
$332 USD
View
A
Retailer 10
-
£284 GBP
View
A
Retailer 11
-
£299 GBP
$401 USD
View
B+
Retailer 12
-
£304 GBP
View
B+
Retailer 13
-
£322 GBP
$432 USD
View
B+
Retailer 14
-
£344 GBP
ZAR 7,462 ZAR
View
B+
Retailer 15
-
£345 GBP
$463 USD
View
B+
Retailer 16
-
£384 GBP
€491 EUR
View
Retailer 17
-
£387 GBP
A$798 AUD
View
Price last confirmed 29 days ago
B
Retailer 18
-
£513 GBP
View
Most Expensive
NZ Jewellers
358a25be-ccf8-432f-9676-77aea04babd9 · Oct 30
£1,006 GBP
$1,350 USD
View
Price under review
18 more retailers have this diamond
Prices start from £163 GBPSave up to £350 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 Radiant
£163 GBP