1. I would store the URL of the necklace in the table (probably as a php page so that i can say displayitem.php?item=necklace or something like that) and then print the html link in the php script
PHP Code:
print "<a href=$row[url]> $row[name]</a>";
2. Same idea as 1 but store the img path (ie. images\necklace.jpg) and print img tags in the php script