Two pairs of colored stone earclips, Bulgari

The first designed as carved sapphire fish floating within circular frames above segments of amethysts depicting water, beneath cabochon ruby suns, the sides accented with small round diamonds, mounted in 18 karat gold, signed Bulgari, c1920; the second designed as half hoops set with  40 calibré-cut citrines, signed Bulgari, numbered BD4042.  

The "fish" earclips each with chips in the left corners of the middle sections of amethyst, fish nicely carved with small faceted eyes (excellent detail), diamonds are approximately E-G, VVS-VS, all colored stones are well-matched for color, the reverse signed C1920, BVLGARI, 750 , one engraved "5.98 cts." and the other engraved "429 cts.); the citrine earclips are in overall very good condition, each with one row of citrine of dark honey color, the opposite row of lighter tone, both signed along the top edge of the clip backs BVLGARI, and numbered below BD4042.
In response to your inquiry, we are pleased to provide you with a general report of the condition of the property described above. Since we are not professional conservators or restorers, we urge you to consult with a restorer or conservator of your choice who will be better able to provide a detailed, professional report. Prospective buyers should inspect each lot to satisfy themselves as to condition and must understand that any statement made by Sotheby's is merely a subjective qualified opinion. Illustrations in the catalogue may not be actual size. Prospective purchasers are reminded that, unless the catalogue description specifically states that a stone is natural, we have assumed that some form of treatment may have been used and that such treatment may not be permanent. Our presale estimates reflect this assumption.
NOTWITHSTANDING THIS REPORT OR ANY DISCUSSIONS CONCERNING CONDITION OF A LOT, ALL LOTS ARE OFFERED AND SOLD "AS IS" IN ACCORDANCE WITH THE CONDITIONS OF SALE PRINTED IN THE CATALOGUE.