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Cushion|Natural|SHANE

0.30ct I SI1 Cushion Natural Diamond

VG • I/SI1

Diamond specifications and retailer prices

From £276 GBP
$370 USD
As of October 30, 2026
1 retailer carries this diamond
Only listing: £276 GBP at Shane Co
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at Shane Co

About this 0.3ct natural cushion diamond

This 0.3ct natural cushion sits in the sub-half-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by SHANE. Listed at a single retailer as of October 30, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. 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
I
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabSHANE
Dimensions3.94 × 3.47 mm
L/W Ratio1.14
Top View
3.94 mm3.47 mm0.30 ctI / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateSHANE
Side View
Table 61.0%CrownGirdlePavilionCulet: NoneDepth 75.0%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 30
Current: £276 GBP|Low: £224 GBP|High: £310 GBP|Avg: £262 GBP|+23.3%
June 18, 2026
Shane Co£276 GBP

7 data points across 1 retailer

1 retailer

B
Shane Co
24G0BZ5 · Oct 30
£276 GBP
$370 USD
View

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 Cushion
£276 GBP