Cut gemstoneUntreated
5 ct · Oval cabochon · Ethiopia
$100Rs 27,700
An Ethiopian black opal cut as a classic oval cabochon, its dark body tone throwing a striking play-of-color across green, with flashes of red and gold shifting as the stone turns. Black opal is prized above all for exactly this contrast — the darker the base, the more electric the fire — and this stone delivers it in full across the whole face.
Properties: Birthstone: October Birthstone Zodiac Sign: Libra Birthstone Chakra: Crown Chakra Healing Property: Traditionally linked to creativity, emotional expression, and amplifying inner vision.
Gemology: Hardness: 5.5–6.5 Origin: Ethiopia Shape: Oval Cabochon Color: Black Body Tone with Green, Red & Gold Play-of-Color Treatment: None Weight: 5 Carats Family: Opal (Hydrated Silica)
Black Opal, Ethiopian Opal, Play of Color Opal, October Birthstone, Opal Cabochon, Libra Birthstone
The record
Not recorded yet: Measurements, Refractive Index, Specific Gravity, Hardness (Mohs), Pleochroism. Ask us
From the collection
Hydrated silica, prized for play-of-colour: flashes of spectral colour that shift as the stone moves.
In the same tray
Nephrite Jade · Extra-Large Cabinet
$5,000Rs 1,383,300
Aquamarine · Small Cabinet
$2,000Rs 553,300
1.815 ct · Oval Brilliant · Umba Valley, Tanzania
$120Rs 33,200
Scapolite · Small Cabinet
$100Rs 27,700
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CRAFTS AND STONE
Birthstone for October
