Stainless Steel Teardrop Blue Glass Pendant Necklace

Target

Silver-toned chain matches, Light blue stone color matches, Teardrop shape of the pendant matches, Dainty size and proportions are consistent, Stone setting style is similar, Overall aesthetic aligns perfectly

Sterling Silver Teardrop Blue Sapphire Solitaire Necklace

Etsy - BonnyJewelry

Silver chain material and delicacy, Teardrop pendant shape, Faceted stone, Simple bail/setting design, Overall size and proportion appear consistent

Women's ebru jewelry Blue / Silver Paraiba Tourmaline Teardrop Pendant Diamond Chain Happy Necklace

Wolf & Badger

Pendant shape (teardrop) is very similar, Pendant color (light blue/aqua gradient) is very similar, Pendant appears to be a faceted stone