Photos are enlarged to show detail. All measurements are approximate. This great 10K yellow gold men’s ring, with side engravable cut-outs, features a rectangular stone/glass? That shines iridescent royal blue when you move it around. We are not sure what the stone is. The “10 KT” karat stamp font looks like the ring is probably from the 50s, give or take a decade. The stone is 8.7 X 7.0 mm. It is a size 8 on our mandrel (mandrels may differ slightly). The lines on the stone in the photos are reflections from the lighting. Please’mouse over’ the photos carefully to view entirely, as this is the exact item you will receive. PHOTOS ARE AN INTEGRAL PART OF THIS LISTING – you may see something differently, or find something we have overlooked. PHOTOS MAY BE ENLARGED TO SHOW DETAIL. Feel free to ASK questions. All jewelry measurements are done with jewelers measuring tools to the best of our ability, however we are not jewelers. For photographing rings we use a mannequin hand, which is approximately a ring size 6 1/2, because our human hands are not suitable for modeling. We want to know about it! We have great feedback. Feel free to read them. “As Described” comes up repeatedly, so rest assured if you have a problem with your item, we are NOT out to get YOU!!