Jewelry render by keyshot / Using no HDRI, just lighting

[raminnsh]

Welcome Ramin, these look fabulous!

Thank you so much Josh! It's a really big pleasure to be here 

[raminnsh]

Hi Ramin, Why don't you make some tutorial? I would like learn how to do something similar like that.

Hi Jose,
Thank you much! I am thinking about it, will do soon. Actually it's not really something complicated. I just made them with very simple and normal lighting tools, but I will prepare a Youtube tutorial video soon. Thank you!