Blue & Green Turquoise Ring in Sterling Silver | Vintage c.1970's Heliodor 18mm Origin unspecified Shape faceted

18mm Origin unspecified Shape faceted oval cut Material Grade C Colors green Treatments / Enhancements none Mohs Hardness 7

The Stones: black onyx and synthetic opal

53g Dimensions (millimeters) 9

The Center Stone: Blue Topaz

Navajo Native American-made necklace with sterling silver

Blue & Green Turquoise Ring in Sterling Silver | Vintage c.1970's Heliodor 18mm Origin unspecified Shape facetedA Bit About The Piece Southwest silver ring set with Sleeping Beauty & Royston turquoise stones Details, details The Stone: Turquoise, natural stone count: 2 origin: Sleeping Beauty Mine, Arizona and Royston Mining District, Nevada cut: freeform cabochons stone measurements (millimeters): 8. 63mm x 5. 37mm and 8. 30mm x 6. 70mm stone measurements (inches): 0. 33" x 0. 2" and 0. 33" x 0. 25" treatments: not dyed, stabilized The Setting: Bezel Set Split