This tutorial will give you instruction to make draw a diamond necklace, so follow all the steps to make similar.
New file: First take a new file with black background file as here.
Draw a shape: Choose Pen tool (P key) with this "eefdfb" color as looking below.
Layer style: Go to Layer menu > Layer style > Bevel and Emboss, Outer glow and make same settings.
You will get it.
Now with same layer style draw a circle.
Make many circle shape with same steps and set them as I have done here.
This is your final result.
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