Meg - I'm so glad you shared your earrings. I thought of your necklace when angellicskater shared her opal earrings.
In terms of both stone quality and design of alexandrites, I love Mark Henry and Laura Medine.
Here's a picture of my moonstone and alexandrite ring by Laura. (I think it's sideways though).
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That is gorgeous, Tink. So unique. I love it.