A sapphire and diamond openwork cluster ring; the large squa...
A sapphire and diamond openwork cluster ring; the large square plaque with central oval sapphire and diamond cluster within an openwork scrolling frame; to a basket mount with round brilliant cut diamonds in collet mounts to terminals of outer tubular batons. Plain shank marked '18k'. Size O 1/2, 3.5 x 3cm. 9.6 grams
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A sapphire and diamond openwork cluster ring; the large square plaque with central oval sapphire and diamond cluster within an openwork scrolling frame; to a basket mount with round brilliant cut diamonds in collet mounts to terminals of outer tubular batons. Plain shank marked '18k'. Size O 1/2, 3.5 x 3cm. 9.6 grams
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