This can be always to ensure if they do produce an inferior product, you will get your a reimbursement.
If the jewelry is clear, shiny and transparent, it really is of high quality, therefore you see some cracks or spots on the top of crystal, it is inferior. https://www.pressadvantage.com/story/65432-contractors-state-license-center-leads-the-way-in-zoom-classes-for-contractor-licensing-in-los-angel