Gemstones: 1 piece Lab Created Alexandrite, Trillion Cut, 8 mm, 2.50 carats total gem weight, Changes Hue depending on lighting: Deep Pink, Dark Purple, Rich Blue, and Ocean Teal with Brilliant Sparkle. Ring: 2.20 grams, Pure Sterling Silver with .925 stamp, Ring features exceptional Design, Craftsmanship and Rhodium finishing. Perfect gift for Mothers Day, Birthdays, Valentines Day, Graduation, Christmas or just about any other occasion. Money Back Guarantee. Includes a Signature Gift Box & Free SHIPPING, style SR10632