Premise:  The National Diamond Centres in Netanya.09-862 4770) as well as Jerusalem.02-673 3770) will pick you up from your hotel and give you a free tour of the workshops, where they will offer a wide choice of goods to select from and expert advice on what you may want to buy.

Hypothesis: You will find higher quality diamonds if you request help from The National Diamond Centres.
Relation: neutral