Synthetic Ruby. Beautiful. Wife loves the necklaces and the box it came in.Didn't want too much h being but wanted my birthstone front & center. This is perfect ?Comes in nice box with mini microfiber cleaning towel. Box is heavy and fancy, good for storage.Jewelery is pretty, wife enjoys it. Box is heavy and very nice, good for long term jewelry storage.Would give product overall 8/10Muy lindaVery nice box. Comes with a lens cloth and storage box. The chain looks brittle. Very pretty.Bought this for my sister. She said she loved it.Got this in the rose gold aquamarine stone color and loved it from the second it was opened! The aquamarine stone is gorgeous. The necklace comes in a sturdy box with a small microfiber cleaning cloth.This necklace is bright and shiny without looking gaudy. Had just a tad bit of trouble getting the small lobster clasp to open at first, but no trouble after the initial try. It may have needed to loosen up a bit.Not sure how the rose gold adjustable length chain will hold up, as it looks a bit cheap compared to the pendant. The chain does come with a lobster clasp and a small heart charm on one end. The rose gold color is subtle, not overly-rose color. Overall, very pleased with the necklace; would recommend.This was a great find. My daughter & I often share costume jewerly. When I find a good piece, that with proper care can become a family heirloom, I get excited. This is such a piece. It arrived in a beautiful, red giftbox with the pendant & chain bagged separately. The chain is delicate as befitting the pendant which is so beautiful, it looks like it came from a jeweler. The chain is listed at 17" with a 2" extender. I prefer 18" chains, & was able to comfortably try this out & have the pendant hit at the first part of sternum. It's lovely. Exactly what I hoped it would be & I would definitely get this again.