Yes, you can make a clear gelating:
http://www.gmap-gelatin.com/using_gelatin.html
As in this flower gelatin mold:
http://www.gmap-gelatin.com/feature2.html
HTH
I purchase the glaze made by Dr. Oetker. Comes in clear and red.
http://www.oetker.us/en/product/baking-aids/glazes-and-sauces/clear-glaze
http://www.oetker.us/en/product/baking-aids/glazes-and-sauces/red-glaze
You can heat up some apricot jam or preserves with water and brush that over the fruit (recipe and instructions follow):
http://www.joyofbaking.com/FruitTart.html
Cornstarch glaze recipe:
http://allrecipes.com/recipe/fresh-fruit-flan/Detail.aspx
HTH
You can purchase the Dr. Oetker products online using the links above.
Many of the bakeries use a product called freeze 'n shine. It is basically sugar and gelatin. You could replicate this by mixing clear gelatin, sugar, and either boiling water, or boiling apple or white grape juice. About 1/2 tsp of gelatin to one cup of liquid should work. If you're using juice, you won't need much if any sugar.
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