1970's Vintage 5.55 CTW Diamond Onyx 18 Karat Gold Striped Bow Brooch bulgari Prong set in an engraved

Prong set in an engraved mount tested as 14k rose gold

Cathedral style mounting featuring a stylized square form head with double prongs

Basket set with delicate split prongs

Featuring a prong set checkerboard cushion cut amethyst measuring 10

50 carat total

1970's Vintage 5.55 CTW Diamond Onyx 18 Karat Gold Striped Bow Brooch bulgari Prong set in an engravedBrooch is designed as a stylized bow motif, contraposto, with black onyx stripes alternating with rows of diamonds and a pav diamond center Rows of diamonds feature an elegantly scalloped gold edge flush set against the calibr cut onyx, excellent in luster Total diamond weight is approximately 5. 55 carats total, F to H color with VS and SI clarity (mostly VS) Completed by a pin stem and plunging barrel closure Stamped 18K and 750 for 18 karat gold