We included opal inlay in many of our Historical Designs inspired jewelry collection. The color of opal jewelry changes depending on the angle of its light reflection. When the opal is rotated, the color dances with a rainbow magic sparkle throughout the stone. Hathor existed before the Pharaohs ruled. Possibly the greatest of the Egyptian goddesses, she was all-encompassing and was called the "Queen of the Four Corners of the Sky." Hathor helped Ra create the three dimensional and would travel with him across the sky each day. Pendant Dimensions 50 x 25 mm ( 2 x 1 inch ) Material: Gold Filled Silver 925K (10% Gold out of the weight) Gold-filled jewelry is a great economical alternative to solid gold. If taken care of, it can last as long as solid gold and won't tarnish or rub off. The downside is that if you were to resell your gold-filled jewelry, it would not have as much value as solid gold jewelry. Please contact us if you have any question, Thank you for visiting our shop.