Model:
Gemstone: Onyx
Middle Gem:
Metal: Gold 18k
Weight:  carat
Size: xx cubic mm
Date:
Creator: Dr. M. Negini

Model:
Gemstone: Onyx
Middle Gem:
Metal: Gold 18k
Weight:  carat
Size: xx cubic mm
Date:
Creator: Dr. M. Negini

Model: Flower
Gemstone: Onyx
Middle Gem:
Metal:
Weight:  carat
Size: xx cubic mm
Date:
Creator: Dr. M. Negini

Model: Flower
Gemstone: Onyx
Middle Gem: Ruby, Diamond
Metal: Gold 18k
Weight: carat
Size: xx cubic mm
Date:
Creator: Dr. M. Negini

Model: Flower
Gemstone: Onyx
Middle Gem:
Metal: Gold 18k
Weight:  carat
Size: xx cubic mm
Date:
Creator: Dr. M. Negini

Model:
Gemstone: Onyx
Middle Gem:
Metal:
Weight:  carat
Size: xx cubic mm
Date:
Creator: Dr. M. Negini

Model: Serpent
Gemstone: Onyx
Middle Gem: Diamond
Metal: Gold 18k
Weight: 21 carat
Size: 39x18x5 cubic mm
Date: 1991
Creator: Dr. M. Negini

Model: Hedgehog
Gemstone: Onyx
Middle Gem: Diamond
Metal: Gold 18k
Weight: 17 carat
Size: 22x42x3 cubic mm
Date: 1992
Creator: Dr. M. Negini

Model: Achaemenian Flower
Gemstone: Onyx
Middle Gem:
Metal: Gold 18k
Weight:  carat
Size: xx cubic mm
Date:
Creator: Dr. M. Negini

Model:
Gemstone: Onyx
Middle Gem:
Metal: Gold 18k
Weight:  carat
Size: xx cubic mm
Date:
Creator: Dr. M. Negini

Model:
Gemstone: Onyx
Middle Gem:
Metal:
Weight:  carat
Size: xx cubic mm
Date:
Creator: Dr. M. Negini

Model: Ring
Gemstone: Onyx
Middle Gem:
Metal: Gold 18k
Weight:  carat
Size: xx cubic mm
Date:
Creator: Dr. M. Negini