Using a sponge brush, apply a layer of gel stain onto tray. Set aside to dry.
Use template to trace diamond onto back of paper, and cut out.
Working on craft mat, brush acid-free glue onto back of paper.
Adhere diamonds to tray as desired. To remove all air bubbles, hold one corner down and smooth paper with your fingers.
Apply 2 or 3 coats of glaze, allowing adequate drying time between coats. Let dry.