Mid Century Cornflower Sapphire & Diamond Trilogy Ring Size:8 ) Each of the four

) Each of the four vehicles was at the cutting edge of their respective branches of technology

It's had an interesting and eventful history

The level of detail to the crown (front and back) is superb

The dates appear to match up

although this time with relatively small production output

Mid Century Cornflower Sapphire & Diamond Trilogy Ring Size:8 ) Each of the fourDATE: Mid Century, c. 1950 Classic mid 20th century trilogy ring set with a natural cornflower sapphire flanked by two brilliant cut diamonds. The three stones of a trilogy ring are said to represent past, present, and future, making it a popular engagement ring style. This one dates from the 1950s, crafted in 18 karat gold throughout. STONES Natural Blue Sapphire Two . 20ct Brilliant Cut Diamonds MEASUREMENTS Head: 11. 5 x 5. 5mm Rise off finger: 5.