Art Deco
gold and diamond stick pins, two
left to right:
1) platinum, 14K yellow gold, 0.20 carat round brilliant cut diamond (clarity: VS2, color: G), 0.50 cttw single and old European cut diamonds (clarity: VS1-I2, color: G-K)
2) 18K and 14K white gold, 0.03 carat diamond (clarity: I1, color: H), green glass stone
2.3 dwts
taller (left), head: 1/2"w x 13/16"h; length: 2 7/8"l

Provenance:
The Estate of Nina and Jack Stillinger, Urbana, Illinois

Upper-right diamond, on first example pictured, with chip to stone. Otherwise no apparent issues. Each unmarked, but tested for metal content.