669
A diamond brooch
Estimate €450–650
668
An invisible set ruby and diamond ring
Estimate €800–1.300
Description
White gold of approximate fineness 750/000.
Set with 50 brilliant cut diamonds with a total approximate weight of 0.45ct and 66 rubies cut for invisible setting on a convex surface with a drop shaped perimeter.
USA, 20th century.
(signs of wear)
Size: 16.1 mm
10 g
Notes
The invisible setting allows gemstones to be set side by side, with no claws or other fixing elements visible. The stones are carefully cut and calibrated, fitting concealed within the metal structure. This technique, patented by Van Cleef & Arpels in 1933, demands the highest degree of precision in both cutting and setting execution.
Characteristic of high jewellery, its use reveals not only the jeweller's technical mastery, but also the sophistication and discernment of those who acquire this type of extraordinarily refined jewellery.
The relationship between what we see and what we know is never complete. The way we see things is influenced by what we know, or by what we believe.
