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Cushion|Natural|GIA

0.30ct H SI2 Cushion Natural Diamond

VG • H/SI2 • GIA 2518570829

Certificate GIA 2518570829

Diamond specifications and retailer prices

From £158 GBP
As of November 6, 2026
Save £363 GBP (70%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £521 GBP at MOH London · As of November 4, 2026
View at MOH London

About this 0.3ct natural cushion diamond

This 0.3ct natural cushion sits in the sub-half-carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 2518570829. Listed at 9 retailers as of November 4, 2026, with prices from £158 to £521, a £363 spread on the same certified stone. MOH London lists it at £521. 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
H
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2518570829
Dimensions3.73 × 3.68 × 2.59 mm
L/W Ratio1.01
Top View
3.73 mm3.68 mm0.30 ctH / SI2
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2518570829
Side View
Table 64.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 70.4%

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: £521 GBP|Low: £158 GBP|High: £528 GBP|Avg: £313 GBP|-1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 2£158 GBP
Retailer 5£228 GBP
Retailer 7£244 GBP
Retailer 8£261 GBP
Retailer 4£286 GBP
Retailer 6£309 GBP
Retailer 9£339 GBP
Retailer 3£426 GBP
MOH London£521 GBP

39 data points across 9 retailers

9 retailers£158 GBP to £521 GBP

A
Cheapest Retailer
-
£158 GBP
A
Retailer 2
-
£228 GBP
View
Retailer 3
-
£244 GBP
View
Price last confirmed 9 days ago
B+
Retailer 4
-
£261 GBP
View
B+
Retailer 5
-
£286 GBP
View
B
Retailer 6
-
£309 GBP
View
B
Retailer 7
-
£339 GBP
View
B
Retailer 8
-
£426 GBP
View
Most Expensive
B
MOH London
1ADDD4D28 · Nov 4
£521 GBP
View
8 more retailers have this diamond
Prices start from £158 GBPSave up to £363 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 Cushion
£158 GBP