C. 1970. Every outfit has room for more jewels! From our Estate collection, this vibrant bracelet parades 9x5-12x7mm rectangular aventurine,… C. 1970. Every outfit has room for more jewels! From our Estate collection, this vibrant bracelet parades 9x5-12x7mm rectangular aventurine, carnelian, white agate, tiger eye and blue chalcedony beads between swirling links of 14kt yellow gold. Springring clasp, multi-gemstone bead bracelet. Exclusive, one-of-a-kind Estate Jewelry.