Pretty shade of blue chalcedony gemstone with a sterling setting

• Size: 5 1/2. Top of ring is 3/8" in width.
• Type: Pre Owned Retro Vintage from the 1980's.
• Condition: Darkened patina on sterling. Chalcedony has a rough edge with a tiny fleabite chip at the top of the oval when viewed under magnification.
• Materials: Sterling silver, chalcedony gemstone.
• Markings: Marked 925 on the inside of the band.
• Weight: 2.6 grams.