star-sapphire

5 лет назад

This video introduces viewers to star sapphires, a type of sapphire cut in a rounded cabochon style. The video showcases several star sapphires with different colors and origins, highlighting their unique star effect. The speaker also discusses the characteristics of star sapphires, including their inclusions and growth marks.

2 года назад

The video features a rare, unheated 25.72-carat star sapphire from a closed deposit in Thailand. The speaker explains the unique properties of this sapphire, including its hematite needles that create a strong, solid star. The video also highlights the rarity of this stone and its historical significance.