18K gold, diamond and emerald tennis bracele

Pricing & History
18K gold, diamond and emerald tennis bracelet having 23 emerald step cut Colombian emeralds, 8.30 cts. approximate, graduating in size to center, and 36 round brilliant cut diamonds, .70 cts. approximate, H-I color, SI1 - SI2 clarity, 22.4 grams, Marked, `US pats 4697315 and pend` and `18K`. 17.25`L Circa - late 20th C.