Roman Glass 10-20mm Light Green Graduated Center Drilled Coin with Pendant - 15-16 Inch Stone Type_Fossil Coral while replicas are often cut

while replicas are often cut or drilled

Diamonds actually form at high temperatures and pressures that occur in Earth's mantle about 100 miles below Earth's surface

and the green color is caused by a reaction in the stone when the chrome is introduced to water

and can range from translucent to opaque

The presence of Manganese within the stone produces the purple hue

Roman Glass 10-20mm Light Green Graduated Center Drilled Coin with Pendant - 15-16 Inch Stone Type_Fossil Coral while replicas are often cutRoman glass that has been turned into contemporary beads refers to ancient Roman glass artifacts (often shards or fragments) that are carefully salvaged, sometimes reshaped, tumbled, or polished, and then drilled to be incorporated into modern jewelry designs. These beads are highly valued for their historical authenticity, unique iridescent patinas (caused by centuries of burial), and often distinctive colors that reflect the glassmaking techniques