S925 silver clasp. It reacts by coating the irritant with layers of nacre, which eventually builds up and forms into a pearl. Unlike imitation pearls which contain glass or plastic, the base of shell pearls is nacre.
eBay
Exquisite Elegant Pearl Necklace Rhinestone Metal Colorful Pearl Necklace Leaf Dangle Earrings Necklace Earrings Set Women
Aliexpress UK
A lovely necklace in good used condition plenty of life left in it. Please note this is a preloved item so will have signs of use and wear please do zoom in on the photos to fully see the condition of it the last photos will show the size. Any questions please ask. If you are at all unhappy with your item please message me before leaving feedback so we can resolve the problem. Thanks for looking!
eBay
Women Long Necklace White Natural Freshwater Pearl Design Necklace Baroque Pearl Double Layer Sweater Necklace Luxury Jewelry
Aliexpress UK
Vivienne Westwood Gold Tone Bas Relief Triple Pearl Orb Choker Necklace - Box Set. Crystal-set Bas Relief Orb pendant. Triple faux pearl strand design. Gold tone hardware. Choker-style necklace with adjustable clasp.
eBay
Elegant Pearl Necklace For Women Heart Pendant Necklaces Luxury Imitation Pearls Chain Necklaces Korean Jewelry Girls Gifts
Aliexpress UK
Application: The jewelry display case suitable for necklace and pearl necklace. We'd like to settle any problem in a friendly manner. This box display can protect your pearl necklace Note: The Front shaped button is not lock button, just a decoration.
eBay
EUDORA 925 Sterling Silver Tree of Life Pendant Tree Leaf & Goddess Mother of Pearl Necklace Vintage Jewelry with Box D475MB
Aliexpress UK
One piece of necklace.
eBay
Dainashi Real Pure 18K Gold Jewelry Necklace&Pendant,Natural Freshwater Pearl Women Pendant,Fine Jewelry With Gift Box For Lover
Aliexpress UK
This sale is for onechoker style necklace of simulated pearls with a feature cabochon centre on a gold tone background.
eBay
Classic Imitation Pearl Pendant Jewelry Set For Women Simple Metal Gold Color Crystal Box Chain Necklace Fashion Earring Party
Aliexpress UK
The necklace exudes a classic and elegant beaded style, with the faux pearls adding a touch of glamour.
eBay
747pcs/Box Flower Star Heart ABS Imitation Pearls Beads 4/6mm Round Loose Beads for Earrings Necklace Bracelet Jewelry Making
Aliexpress UK
Freshwater Baroque Faux Pearl Multilayer Pendant Necklace. A chain inner necklace with a large single baroque pearl surrounded by a larger chain with a string of baroque pearls. This two layer baroque pearl necklace with large pearls is a stunner.
eBay
Old Style Jewelry Box Storing Treasure Pearl Necklace Earrings Storge Case Decorative Small Chest Holder
Aliexpress UK