This brilliant collar of faceted Peruvian opal stones spaced with peacock blue freshwater pearls features a luxurious custom clasp with a huge blue mabe pearl set in patterned sterling silver with a special safety catch that can be worn center or side as an extra highlight. I got a cache of these fabulous clasps when I began my business 9 years ago. They are NOT available today at any price. ONLY SIX! 17-1/2" Clasp 1-1/4"