This is a wonderful platinum ballerina ring from the 1960s. The ring is centered by a gorgeous royal blue oval cut sapphire that weighs approximately 1.06ct. The sapphire is accentuated by sparkling round and baguette cut diamonds that weighs approximately 1.40ct and 0.70ct respectively. The color of the diamonds is F-G with VS1 clarity. The top of this ring is 20mm by 16mm. The size of the ring is 5 1/8 but it can be resized.