HEAVY (33.8g) Gent's 18K Yellow Gold with a LARGE 16.35ct Natural Australian Black Boulder Opal Ring.

One Pre-owned gent's heavy 18K yellow gold and large natural Boulder Black Opal ring. The mounting is a large oval shape on top measuring approximately 31.0mm across X 22.0mm wide X 10.0mm tall.

There is one large natural Boulder Opal set in the top of the ring. The opal is set from underneath with 4 bent u-prongs under the stone. The mounting is HEAVY, high polished, vertical corrugated groove pattern. The opal measures approximately 25.0mm X 17.8mm X 5.88mm and it is approximately 16.35 ct.

The large stone has the natural ironstone back and the rest of the stone has intense, bright flashes of color throughout the stone. The colors are intense flashes of bright Royal blue, greens, and broad flashes of RED throughout.

The stone has a grey-blue background color and is a very FINE opal.

The top of the ring has three different length bars or fingers of gold off to one side on top of the stone.

The ring weighs 21.75 dwt (33.8 grams). Ring Size is 11.25.

Summary:
One 16.35 ct. very fine natural Boulder Opal.
One heavy 18K yellow gold man's ring mounting (Total ring weight: 21.75 dwt. = 33.8 grams)
Ring size is 11.25.