- Main Stone: 6x6mm hexagon blue sandstone

- Stone: lab alexandrites and natural amethysts

- Main Stone: 6x6mm hexagon shape lab ruby

***This gorgeous London blue topaz necklace features a 14k rose gold chain and kite-cut London blue topaz with diamond halo design

- Main Stone: 7x9mm oval cut Lab treated Alexandrite

Vintage round cut London blue topaz necklace 14k yellow gold Floral leaf diamond pendant women anniversary gift jewelry cluster - Main Stone: 6x6mm hexagonMetal: Solid gold(9K 14K 18K white yellow rose gold),925 sterling silver, platinum available Main Stone: 6. 5mm round London blue topaz. Accent Stone: diamonds or moissanites Chain: 16+2 inches. The chain can be adjustable to 18 Inches. Can be personalized: Yes