I'm almost positive it's sterling. The crystals are light green, light blue, one that looks like amethyst, an amber ish one, and one that looks like garnet. I'll ship to Canada if you pay for shipping
Im sure you can stick this in bubble wrap in a flat envelope and mail it for .71 cents. Ive received many small items from the USA and that was the most postage Ive seen yet. would you like me to pay that?