A few nice celebrity names images I found:
Logan Sapphire
Image by cliff1066™
The magnificent 423 carat Logan Sapphire was cut from a crystal mined in Sri Lanka and is one of the world's largest faceted blue sapphires (it is about the size of an egg). It is the heaviest mounted gem in the National Gem Collection, and in its brooch setting is framed by twenty round brilliant-cut diamonds, totaling approximately 16 carats. Sri Lanka, nicknamed the "Gem Island," has been an important source of sapphires, rubies, and other gems for more than 2,000 years.
www.mnh.si.edu/earth/text/dynamicearth/6_0_0_GeoGallery/g...
Chrysoberyl (Cat's Eye)
Image by cliff1066™
With its exceptional size, honey color, and sharp band of light, the 58.19 carat Maharani Cat's Eye from Sri Lanka is one of the finest gems of its kind. The phenomenon of chatoyancy can be displayed by many gemstones, but the most popular and highly prized is that of the mineral chrysoberyl. In fact, the term "Cat's Eye" is synonymous with this stone, owing to the resemblance of the phenomenon with the slits of cat's pupils. The "eye" that the stone displays when it is cut en cabochon is caused by the reflection of light off numerous parallel inclusions of fine, needle-like crystals, commonly of the mineral rutile.
www.mnh.si.edu/earth/text/dynamicearth/6_0_0_GeoGallery/g...
