I'm very sorry Nellie, but from your two posts I actually do not comprehend your alternative theory about what the tiara as worn by Sophie might consist of...?
--Previous Message-- : : : Field, 1997, p21 says.... : : “ In 1953 the President and people of Brazil : presented the Queen with a Coronation gift : of a necklace and matching pendant earrings : of aquamarine and diamonds. It had taken an : entire year to collect the perfectly matched : stones. The necklace had nine oblong : aquamarines each in a diamond scroll setting : with an even bigger oblong aquamarine : pendant drop. The simple diamond setting of : the pendant was echoed by the pendant : aquamarine earrings. The Queen has since had : the pendant drop reset in a more ornate : diamond cluster and it is now detachable : from the necklace. Her Majesty was so : delighted with the set that in 1957 she had : a relatively simple tiara made to wear with : it. This was a diamond and aquamarine : bandeau surmounted by three vertically set : oblong aquamarines. In August 1958 the : Brazilian Government added to their original : gift with a bracelet of seven large oblong : aquamarines set in clusters of small : diamonds. There was also a brooch to match : the original setting of the pendant, a : single large square aquamarine in a simple : diamond setting. : “ In 1968 the Queen and Prince Philip made : their first State visit to Brazil and the : Governor of São Paulo presented the Queen : with a V-shaped ‘hair ornament’, as it was : described at the time, also made of : aquamarines and diamonds. In 1971 the stones : from this were used to make four : scroll-shaped motifs for the tiara, : positioned around the three upright oblongs; : a collet aquamarine was placed on the tip of : each of the seven vertical ornaments. “ : : At a date later than this pic, the Queen : wore the complete set with final version of : the tiara and the pendant on the necklace. : Sorry I can't get the pic. : : : :