Hi Andy,
Welcome to the GDC HR Forum. Our SSHR experts should be along within the next few days. Please be a little patient. Note, however, that you are unlikely to get useful advice without clear, detailed photos of all surfaces of your ring: inside, outside, above. There are a number of image resizing apps online that work pretty well. I use one called Image Resizer. Also, if, like me, you use a Mac, you can try a quick photo resizing simply by clicking on the image file, selecting 'Quick Actions' from the menu, then 'Convert Image'. This should give you a couple of size options for jpeg files to select.
Stephen
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