I'm not positive, but guessing the blue center is glass. It's a very pretty ring, nicer than the pictures would suggest. It's not missing any CZ's and the center is well set. It's a size 6 and hallmarked CSP 925 on the inside band.
Main Stone Sapphire. Diamond Weight 1.00 Ct. Total Carat Weight 8.00 Ct. Gemstone Weight 7.00 Ct. Each piece is handcrafted using carefully selected materials and gemstones to ensure exceptional brilliance and lasting beauty.
Blue Crystal Row Necklace 16-20" Silver Plated Special Occasion Formal Sparkling necklace features five rows of blue and silver crystals and an adjustable chain16-20" adjustable black silver plated chain features an oversized lobster claspComes in a Gift Box for easy gift giving
Each blue stone is held in its original setting and surrounded by small gray rhinestones that create a beautiful drape. The necklace is finished with a shiny silver tone link chain and a secure fold over snap clasp that looks elegant at the back of the neck.
Authentic Tiffany & Co. Infinity Ring in Sterling Silver sz 5.5 in Tiffany Box $415, giftable condition Comes with Tiffany blue box and Tiffany travel pouch Have a wonderful purchase, all sales are final! 🎁