Sunday, November 25, 2012

DIAMOND, DIAMOND...

Most girls in a long-term relationship expect at least at some point to receive a beautiful rock from their partner. Expensive or not, it represents a genuine commit and love.

The rocks on engagement rings and other beautiful jewelries are gem-grade, accounting for only about 20% of all mined diamonds. The rest 80% are industrial-grade, valued mostly for their hardness and thermal conductivity.

The cost of a diamond ring is largely based on the characteristics known as the "4C's"-clarity, color, cut, and carat weight. We often hear something like a one carat (or 1 ct) diamond ring. How much is exactly one carat then? 0.2 grams. That is, a 5 ct diamond weighs about 1 gram.

Clarity is measured on a scale ranging from pure (flawless) to heavily included (I-3).
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In terms of color of a diamond, less is more, and no color is supreme. Body color is measured on a scale ranging from colorless (D) to deeply colored (Z).

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Diamonds with excellent cut will flash in the light with beautiful sparkles. Even though most ring shoppers don't have professional training in gemstones, they can still get a feeling whether a rock is shinning or dime.


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We often hear "the engagement ring should be a man's 3 months pay." Is it true? According to the Knot survey, people spend on average $5130 on an engagement ring. The US median family income is about $47000 per year, about $3916 per month, so roughly speaking, men spend about 1.3 times monthly salary. Of course, this estimate is very rough due to several factors. First, the family income is for a family of four. Second, this is pre-tax income, and we all know, diamond rings are not tax-deductible!

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