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Round|Natural|GIA

0.30ct L SI1 Round Natural Diamond

EX • L/SI1 • GIA 1263988501

Certificate GIA 1263988501

Diamond specifications and retailer prices

From £123 GBP
As of November 6, 2026
Save £499 GBP (80%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £622 GBP at NZ Jewellers · As of November 4, 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 L colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1263988501. Listed at 12 retailers as of November 4, 2026, with prices from £123 to £622, a £499 spread on the same certified stone. NZ Jewellers lists it at £622. 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
L
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1263988501
Dimensions4.32 × 4.30 × 2.68 mm
L/W Ratio1.00
Key to symbols
Crystal
Top View
4.32 mm4.30 mm0.30 ctL / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1263988501
Side View
Table 56.0%CrownGirdle: THN-MEDPavilionCulet: NoneDepth 62.2%

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 6
Current: £622 GBP|Low: £123 GBP|High: £643 GBP|Avg: £238 GBP|-3.2%
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
November 6, 2026
Retailer 4£123 GBP
Retailer 9£137 GBP
Retailer 11£153 GBP
Retailer 13£153 GBP
Retailer 5£178 GBP
Retailer 8£185 GBP
Retailer 7£199 GBP
Retailer 10£221 GBP
Retailer 6£233 GBP
Retailer 2£276 GBP
Retailer 3£279 GBP
Retailer 12£294 GBP
NZ Jewellers£622 GBP

33 data points across 13 retailers

12 retailers£123 GBP to £622 GBP

A
Cheapest Retailer
-
£123 GBP
A
Retailer 2
-
£137 GBP
View
Retailer 3
-
£153 GBP
View
Price last confirmed 8 days ago
A
Retailer 4
-
£153 GBP
View
A
Retailer 5
-
£185 GBP
View
B+
Retailer 6
-
£199 GBP
View
B+
Retailer 7
-
£221 GBP
View
B+
Retailer 8
-
£233 GBP
View
B+
Retailer 9
-
£276 GBP
View
B
Retailer 10
-
£279 GBP
View
B
Retailer 11
-
£294 GBP
View
Most Expensive
B
NZ Jewellers
3f15b26f-cf03-471d-adc3-e5b093fca931 · Nov 4
£622 GBP
$837 USD
View
11 more retailers have this diamond
Prices start from £123 GBPSave up to £499 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
£123 GBP