Large Art Deco Aquamarine Ring. Dive into this refreshing pastel blue swimming pool size 49.86 carat (!) Aquamarine. In addition to the copious size and soothing color, the Aqua is superbly cut, à la a vintage Harry Winston style diamond with wide cut corners. The extraordinary mounting, which, due to the size of the Aqua, can only be appreciated from the sides, exhibits consummate Art Deco geometry including a cool Greek-key variation on the gallery. Via Lang Antiques.
Princess Andrew of Greece's Meander Tiara, c1900. Also known as The Greek Meader Tiara, this is an all-diamond piece featuring large Greek key designs. The central element is a laurel wreath surrounding a large brilliant cut diamond, and there are honeysuckle motifs on the side
An art deco sapphire and diamond brooch, circa 1930 The openwork shield-shaped plaque of geometric design, composed of two rows of cushion-shaped and circular-cut sapphires, within a surround of baguette, old brilliant, rose, single-cut and trapezoid-shaped diamonds, highlighted with circular cabochon sapphire terminals, the gallery decorated with engraved greek key pattern