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48.95-carat sapphire is star attraction at gemstone exhibition - Channel NewsAsia
(POSTED: 09 Oct 2015 23:02)
The US$10m rare, colour-changing star sapphire is the highlight of Jewels of the Orient - An Exhibition of Rare Gems.
(The US$10 million star sapphire from Burma.)
SINGAPORE: A rare gemstones exhibition featuring a rare, 48.95-carat star sapphire from Myanmar opens to the public on Saturday (Oct 10).
Named the Star of Genesis, the sapphire is worth US$10 million. It appears blue under white light, but turns violet when placed under incandescent lighting. The stone is unheated, preserving natural growth lines that meet to form a star when light is shone upon it.
"It's called asterism," said Genesis-Global Group executive director Dennis Tan. "(The stone is) cut into a dome shape, which is called cabachon. That allows the reflection of light to enter the stone and bring it back to the eye, to create that star effect."
(The US$10 million star sapphire from Myanmar)
"To find an unheated stone of that size is very rare, but to find an unheated stone of that size with that star, as well as with colour change, it's extremely rare," he added.
The sapphire is surrounded by 52 pear-shaped diamonds amounting to 11 carats.
Jewels of the Orient - An Exhibition of Rare Gems is a nine-day event showcasing some 150 gemstones with a total estimated value of US$30 million. The gemstones range from fancy coloured diamonds to rare, unheated Burmese rubies and sapphires as well as untreated emeralds from Columbia. The baubles originate from countries such as Mozambique, Sri Lanka, Australia, Russia, Brazil and Kenya.
The exhibition runs from Oct 10 to 18 at the Parkroyal hotel.
(A tsavorite gemstone set in a ring. Rarer than emeralds, tsavorites are named after the Tsavo National Park in Kenya.)
(Pink and yellow diamonds set in a ring.)
(Russian alexandrite gemstones.)
(The lustre of this lavender jade is revealed when light is shone beneath it.)
(Pigeon blood rubies from Burma set in a necklace.)
(POSTED: 09 Oct 2015 23:02)
The US$10m rare, colour-changing star sapphire is the highlight of Jewels of the Orient - An Exhibition of Rare Gems.
(The US$10 million star sapphire from Burma.)
SINGAPORE: A rare gemstones exhibition featuring a rare, 48.95-carat star sapphire from Myanmar opens to the public on Saturday (Oct 10).
Named the Star of Genesis, the sapphire is worth US$10 million. It appears blue under white light, but turns violet when placed under incandescent lighting. The stone is unheated, preserving natural growth lines that meet to form a star when light is shone upon it.
"It's called asterism," said Genesis-Global Group executive director Dennis Tan. "(The stone is) cut into a dome shape, which is called cabachon. That allows the reflection of light to enter the stone and bring it back to the eye, to create that star effect."
(The US$10 million star sapphire from Myanmar)
"To find an unheated stone of that size is very rare, but to find an unheated stone of that size with that star, as well as with colour change, it's extremely rare," he added.
The sapphire is surrounded by 52 pear-shaped diamonds amounting to 11 carats.
Jewels of the Orient - An Exhibition of Rare Gems is a nine-day event showcasing some 150 gemstones with a total estimated value of US$30 million. The gemstones range from fancy coloured diamonds to rare, unheated Burmese rubies and sapphires as well as untreated emeralds from Columbia. The baubles originate from countries such as Mozambique, Sri Lanka, Australia, Russia, Brazil and Kenya.
The exhibition runs from Oct 10 to 18 at the Parkroyal hotel.
(A tsavorite gemstone set in a ring. Rarer than emeralds, tsavorites are named after the Tsavo National Park in Kenya.)
(Pink and yellow diamonds set in a ring.)
(Russian alexandrite gemstones.)
(The lustre of this lavender jade is revealed when light is shone beneath it.)
(Pigeon blood rubies from Burma set in a necklace.)
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