Marietta | 14kt Collector Stone " is a blue to

" is a blue to green mineral colored by a high copper content

44 carats

Sun bounces off of opal giving the effect of a red laser pointer in the stone

87 carats

and blue-green pieces are harder

Marietta | 14kt Collector Stone " is a blue toMeet Marietta, A Sugar Free Vintage Style Andamooka Ring The Stone: Andamooka White Matrix Opal, solid origin: Andamooka, Australia 3. 20 carats brightness of color: 2 of 5 white matrix completely untreated The Setting: Vintage Style 4 Prong Solitaire Ring 14kt white gold, solid North South stone orientation 2. 5mm band width stone measurements: 13mm x 8. 6mm x 5mm default size: 6 More About Marietta: Highly unusual to find natural, untreated