Manufactured Glass (Simulant)

Goldstone

Not a natural mineral or rock. It is an ornamental glass.

Clear Quartz (Faceted) or Cubic Zirconia / Glass imitation

SiO2 (if Quartz), ZrO2 (if Cubic Zirconia)

Clear gemstone earring (likely cubic zirconia)

Cubic zirconia (synthetic zirconium dioxide, ZrO₂); identification from the image is uncertain

Opalite

Synthetic Glass / Man-made Opal Simulant

Colorless faceted gemstone (likely glass or cubic zirconia)

Likely cubic zirconia, ZrO₂; exact identification is uncertain from the photograph

Green glass-like cabochon, likely synthetic glass or resin

Unidentified green transparent material; possibly molded glass, synthetic spinel, or resin

Cubic Zirconia

Zirconium dioxide (ZrO2)

Clear faceted quartz-like gemstone

Probably rock crystal quartz (SiO₂), though the image may show synthetic glass or cubic zirconia

Cut diamond-like gemstone

Likely cubic zirconia (zirconium dioxide, ZrO₂) or glass; natural diamond (carbon, C) cannot be confirmed from an image

Blue glass-like gemstone, likely synthetic spinel or glass

Uncertain; possibilities include synthetic cobalt-blue spinel (MgAl₂O₄) or cobalt-colored glass

Clear faceted gemstone, likely synthetic cubic zirconia

Cubic zirconia (zirconium dioxide, ZrO₂); visual identification is not definitive and diamond or synthetic moissanite are alternatives

Colorless faceted quartz-like gemstone

Likely quartz (SiO₂), though the appearance may also indicate man-made glass or cubic zirconia

Faceted transparent gemstone, likely glass or cubic zirconia

Uncertain from image; possible cubic zirconia (zirconium dioxide, ZrO₂) or glass imitation

Blue glass-like heart pendant, likely synthetic blue spinel or colored glass

Unconfirmed; possibly synthetic spinel (MgAl₂O₄) or cobalt-colored glass

Faceted glass-like gemstone (likely synthetic quartz or cubic zirconia)

Identification uncertain; possibilities include synthetic quartz (SiO₂) or cubic zirconia (ZrO₂)

Colorless faceted gemstone, likely synthetic cubic zirconia

Cubic zirconia (zirconium dioxide, ZrO₂); natural diamond is a less likely alternative

Colorless faceted gemstone, likely cubic zirconia

Synthetic cubic zirconia (zirconium dioxide, ZrO₂); identity is visual and not definitive

Red gemstone ring (likely synthetic ruby or red glass)

Possibly corundum (Al₂O₃), chromium-colored; identity cannot be confirmed from the image

Cubic Zirconia (Set in Jewelry)

Zirconium Dioxide (ZrO2)

Colorless faceted gemstone (most likely synthetic cubic zirconia)

Cubic zirconia, ZrO₂ (likely synthetic); natural alternatives include quartz or diamond

Cubic Zirconia

Zirconium Dioxide (ZrO2)

Green Obsidian Sphere (man-made glass)

Vitreous Silica with Chromium/Iron additives

Pink faceted gemstone, likely synthetic cubic zirconia or pink sapphire

Uncertain from image; possible zirconium dioxide (cubic zirconia, ZrO₂) or corundum (pink sapphire, Al₂O₃)

Opalite (a synthetic glass)

Silicon Dioxide (SiO2) with various additives; not a true mineral but a man-made gem simulant

Colorless faceted gemstone, likely glass or cubic zirconia

Probably cubic zirconia (zirconium dioxide, ZrO₂); diamond cannot be confirmed visually

Clear faceted gemstone, likely cubic zirconia

Synthetic zirconium dioxide (ZrO₂), probably cubic zirconia; exact identification requires testing

Colorless faceted gemstone (likely cubic zirconia)

Cubic zirconia, ZrO₂ (synthetic zirconium dioxide); possibly synthetic glass or lab-grown diamond

Faceted colorless gemstone, likely glass or diamond imitation

Unidentified; possibly diamond (carbon, C) or cubic zirconia (zirconium dioxide, ZrO₂)

Faceted citrine-colored gemstone

Likely citrine (quartz, SiO₂); possibly yellow glass or synthetic gem

Colorless faceted gemstone (likely cubic zirconia)

Cubic zirconia, zirconium dioxide (ZrO₂); possibly synthetic quartz or glass imitation

Colorless faceted gemstone, likely cubic zirconia

Cubic zirconia (synthetic zirconium dioxide, ZrO₂); possibly colorless quartz or laboratory diamond

Faceted clear gemstone (likely glass imitation or quartz)

Uncertain; appearance is consistent with colorless quartz (SiO₂), but the strong uniform brilliance may indicate cut glass or cubic zirconia

Diamond (or diamond simulant)

C

Colorless faceted gemstone, likely cubic zirconia

Cubic zirconia (zirconium dioxide, ZrO₂); visual confirmation is unavailable

Diamond (or Simulant)

Carbon (C)

Diamond (or Simulant)

Carbon (C)

Colorless faceted gemstone, likely glass or quartz

Uncertain; appearance is consistent with faceted quartz (SiO₂), but cut glass or cubic zirconia cannot be excluded from the photograph

Cubic Zirconia (Faceted)

Zirconium dioxide (ZrO2)

Faceted transparent gemstone pendant

Likely cubic zirconia (zirconium dioxide, ZrO₂); possibly diamond or synthetic moissanite

Diamond (or Diamond Simulant)

Carbon (C)

Opalite

Synthetic Glass (Hydrated Silica Simulant)

Clear Quartz (Faceted)

SiO2 - Silicon Dioxide