Katz & Ogush Inc. Art Deco 0.71 CTW old European Cut Diamond Platinum Octagonal Foliate Engagement Ring opal cabochon Exhibits violetish blue color in

Exhibits violetish blue color in fluorescent light with moderately strong color change to violet in incandescent light

Stock Number: We-2921

With maker's mark for Black Starr & Frost

Stock Number: We-11233

"description":"Centering an emerald cut emerald

Katz & Ogush Inc. Art Deco 0.71 CTW old European Cut Diamond Platinum Octagonal Foliate Engagement Ring opal cabochon Exhibits violetish blue color inCentering and old European cut diamond weighing approximately 0. 53 carat total J color with SI2 clarity Bead set in an octagonal form head with a pierced foliate motif surround accented by bead set single cut diamonds Weighing approximately 0. 18 carat total eye clean and bright Accented by a pierced scroll motif profile and engraved wheat motif shoulders Stamped for platinum With maker's mark for Katz & Ogush Inc. Circa: 1930s Ring size: 6 3 4 and