CaratHunter
Plans
Round|Natural|GIA

0.30ct L SI1 Round Natural Diamond

GD • L/SI1 • GIA 5306023230

Certificate GIA 5306023230

Diamond specifications and retailer prices

From £123 GBP
As of November 6, 2026
Save £525 GBP (81%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £649 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 standard cut grade and certified by GIA 5306023230. Listed at 12 retailers as of November 4, 2026, with prices from £123 to £649, a £525 spread on the same certified stone. NZ Jewellers lists it at £649. 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
L
Colour
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5306023230
Dimensions4.22 × 4.19 × 2.63 mm
L/W Ratio1.01
Top View
4.22 mm4.19 mm0.30 ctL / SI1
OriginNatural
CutGood
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 5306023230
Side View
Table 59.0%CrownGirdle: Very ThickPavilionCulet: NoneDepth 62.5%

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 6
Current: £649 GBP|Low: £123 GBP|High: £681 GBP|Avg: £242 GBP|-4.7%
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
November 6, 2026
Retailer 13£123 GBP
Retailer 5£143 GBP
Retailer 11£143 GBP
Retailer 14£160 GBP
Retailer 3£162 GBP
Retailer 6£167 GBP
Retailer 10£192 GBP
Retailer 8£210 GBP
Retailer 12£233 GBP
Retailer 7£239 GBP
Retailer 4£285 GBP
Retailer 2£288 GBP
Retailer 9£294 GBP
NZ Jewellers£649 GBP

30 data points across 14 retailers

12 retailers£123 GBP to £649 GBP

B+
Cheapest Retailer
-
£123 GBP
B+
Retailer 2
-
£143 GBP
View
B+
Retailer 3
-
£160 GBP
View
Retailer 4
-
£162 GBP
View
Price last confirmed 8 days ago
B+
Retailer 5
-
£192 GBP
View
B
Retailer 6
-
£210 GBP
View
B
Retailer 7
-
£233 GBP
View
B
Retailer 8
-
£239 GBP
View
B
Retailer 9
-
£285 GBP
View
B
Retailer 10
-
£288 GBP
View
B
Retailer 11
-
£294 GBP
View
Most Expensive
C
NZ Jewellers
2aa3b151-6411-4044-b844-be52741c22c0 · Nov 4
£649 GBP
$873 USD
View
11 more retailers have this diamond
Prices start from £123 GBPSave up to £525 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