I bought some gold from KSA, some of it is a pair of wedding rings which is "supposed" to be 21k according to the jewelry shop were i bought it. now problem started when suarez and this other engraving shop told me that they cannot engrave it coz it is hollow and very delicate and the worst part is one of the shop here told me that there is no 21k gold only 18k and later she said the there is commercialized 21k(or what the hell does it mean?)even bought from outside. now i am beginning to think that jewelries i bought is trash...
Now my question is? who is telling the truth

?
What i have in mind is these local vendors are just waiting for me to sell what i have to them tell me to just settle for a 14k rings made to order from them.