How to distinguish between shape and cutting style?
Shape is simply the way the girdle is cut ie., round, square, oval etc., while cutting style is how facets are cut on the crown and pavilion.
Thursday, January 04, 2007
Tweezer
What are the characteristics of a good tweezer?
A good tweezer should be dull, with non-reflective surface and good spring, with inner groove near tip.
A good tweezer should be dull, with non-reflective surface and good spring, with inner groove near tip.
Colored Stone and Light Source
Which light source is used to distinguish color? Which light source is used to judge transparency?
To distinguish color use reflected light.
To distinguish transparency use transmitted light.
To distinguish color use reflected light.
To distinguish transparency use transmitted light.
Natural Stone, Enhanced and Synthetic Stone
What is the difference between a natural stone, enhanced and a synthetic stone?
Natural: as found in nature with only cutting and polishing done. Ex. Natural, ruby, sapphire, emerald, garnet.
Enhanced: a stone that has been treated by man such as heating, oiling etc.,. Ex. Treated rubies, sapphires, emerald.
Synthetic: man made stone which has a counterpart in nature and has the same chemical, physical and optical properties as the natural stone. Ex. Synthetic ruby, sapphire, emerald, diamond.
Natural: as found in nature with only cutting and polishing done. Ex. Natural, ruby, sapphire, emerald, garnet.
Enhanced: a stone that has been treated by man such as heating, oiling etc.,. Ex. Treated rubies, sapphires, emerald.
Synthetic: man made stone which has a counterpart in nature and has the same chemical, physical and optical properties as the natural stone. Ex. Synthetic ruby, sapphire, emerald, diamond.
Wednesday, January 03, 2007
How To Become A Good Investor
Charles T Munger, Vice-Chairman of Berkshire Hathaway Corporation writes:
'If you're going to be an investor, you're going to make some investments where you don't have all the experience you need. But if you keep trying to get a little better over time, you'll start to make investments that are virtually certain to have a good outcome. The keys are discipline, hard work, and practice. It's like playing golf -- you have to work on it.'
'If you're going to be an investor, you're going to make some investments where you don't have all the experience you need. But if you keep trying to get a little better over time, you'll start to make investments that are virtually certain to have a good outcome. The keys are discipline, hard work, and practice. It's like playing golf -- you have to work on it.'
Dominican Republic Amber
Garry Platt writes:
Dominican Republic amber, probably the world’s second largest deposit following that of the Baltic amber region, strangely does not have a unique name but can be called amber because of the presence of Succinic acid though not to the same level as Baltic amber. It is commonly referred to as Dominican Republic amber. Throughout the island are numerous mines which tap into different deposits of amber. Laid down in successive layers the age of the amber extracted can vary from between 15 - 40 million years. The tree origin has been established by Poinar as Hymenaea protera.
More info @ http://www.gplatt.demon.co.uk/typesof.htm
Dominican Republic amber, probably the world’s second largest deposit following that of the Baltic amber region, strangely does not have a unique name but can be called amber because of the presence of Succinic acid though not to the same level as Baltic amber. It is commonly referred to as Dominican Republic amber. Throughout the island are numerous mines which tap into different deposits of amber. Laid down in successive layers the age of the amber extracted can vary from between 15 - 40 million years. The tree origin has been established by Poinar as Hymenaea protera.
More info @ http://www.gplatt.demon.co.uk/typesof.htm
Dubai Cut
National Jeweler Network writes:
Dhamani Jewels DMCC, the sole distributor of the "Dubai Cut" diamond, has announced the launch of a jewelry line incorporating the gems and inspired by the shape of the letter "D."
Unveiled as the world's first diamond cut inspired by and named after a city, the 99-faceted Dubai Cut reflects the 99 holy names of Allah. Russian polished-diamond manufacturer Kristall Corp. produces the unique cut exclusively for DMCC under a legal patent.
More info @ http://www.nationaljewelernetwork.com/njn/content_display/diamonds/e3i73449c66171eef175fcbbfd77ca40240
Dhamani Jewels DMCC, the sole distributor of the "Dubai Cut" diamond, has announced the launch of a jewelry line incorporating the gems and inspired by the shape of the letter "D."
Unveiled as the world's first diamond cut inspired by and named after a city, the 99-faceted Dubai Cut reflects the 99 holy names of Allah. Russian polished-diamond manufacturer Kristall Corp. produces the unique cut exclusively for DMCC under a legal patent.
More info @ http://www.nationaljewelernetwork.com/njn/content_display/diamonds/e3i73449c66171eef175fcbbfd77ca40240
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