Butterfly Jewelry 925 Sterling Silver Created Opal Necklace Ideal Gift for Girls Teens, 18" + 4" Extender Graceful and Dainty Measuring about 3/4" by 7/16" in Size Created Blue Fire Opal Butterfly Neckalce Made by Hand in our Jewelry Design Studio Absolutely Precious Gift for Nature Lovers, Girls, Teens or the Young at heart Sterling Silver Butterfly Pendant Necklace with Created Opal 18" chain + 4" Extender all in 925 Silver for adjustable length up to 22"