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<p>[QUOTE=&quot;Couch Potato Wannabe, post: 1670382, member: 14066&quot;]The striations (lined pattern) in the back of the stone, could either be a natural part of the stone, or a result of the process of cutting the stone to size and suit being mounted in jewellery.</p><p><br /></p><p>Marie Forjan is quite correct in saying it is impossible to accurately identify a stone from a photograph.&nbsp; As many stones can share characteristics, and also a single stone can look vastly different from photo to photo depending on lighting conditions, and reflections etc...</p><p><br /></p><p>A visual inspection of the stone in person is sometimes possible, though there are more definitive methods for identifying stones.&nbsp; If the stone is not completely opaque then measuring the stones refractive index is a very reliable method of identifying gemstones.&nbsp; Most jewellers would have the means to perform such a test, just check first if they will charge you for that service.</p><p><br /></p><p>There are other tests which can be done, but some could result in damage to the stone itself, even if only minutely, so you&#039;d have to weigh up the risks for those tests before proceeding with them.[/QUOTE]</p><p><br /></p>

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