Archive for the ‘Education’ Category

Cut fuels the diamond’s fire, sparkle, and brilliance.

It seems miraculous that the traditional 58 tiny facets in a diamond, each precisely cut and sharply defined, may be only two millimeters in diameter. But without this precision, a diamond wouldn’t be near as beautiful as it is. Without a doubt, the allure of a particular diamond depends more on cut than anything else.

Though extremely difficult to analyze, the cut of a diamond has three attributes: brightness (the total light reflected from a diamond), fire (the dispersion of light into the colors of the spectrum), and scintillation (the light flashes – or sparkle – when a diamond moves).

An understanding of diamond cut begins with the shape of a diamond, with the standard round brilliant dominating the majority of diamond jewelry. All other diamond shapes are known as fancy shapes or fancy cuts and include the marquise, pear, oval, and emerald cuts. Hearts, cushions, triangles, and a variety of other new shapes are also gaining popularity in many forms of diamond jewelry.

As a value factor, though, cut refers to a diamond’s proportions, symmetry, and polish. For example, look at a side view of the standard round brilliant. The major components, from top to bottom, are the crown, the girdle, and the pavilion. A round brilliant cut diamond can have either 57 or 58 facets, the 58th being a tiny flat facet at the bottom of the pavilion, known as the culet. The large, flat facet on the top is the table. The proportions of a diamond refer to the relationships between table size, crown angle, and pavilion depth. A wide range of proportion combinations are possible, and these ultimately affect the stone’s synchronicity with light.

In early 2005, GIA unveiled a diamond cut grading system for standard round brilliants in the D-to-Z color range. This system, the product of more than 15 years of intensive research and testing, assigns an overall diamond cut grade ranging from Excellent to Poor.

Diamond Clarity refers to the absence of internal inclusions or external blemishes.

Because they are created deep within the earth, most diamonds contain unique birthmarks called inclusions (internal) and blemishes (external). Diamonds with very few birthmarks are rare and, of course, rarity affects a diamond’s value. Using the International Diamond Grading System™, created by GIA, diamonds are given a clarity grade that ranges from flawless (FL) to diamonds with more prominent inclusions (I3).

Every diamond is unique. But none are absolutely perfect even though some come close, even under 10x magnification. Known as flawless diamonds, they are exceptionally rare. Most jewelers have never even see one.

The GIA Clarity Scale contains 11 grades, with most readily available diamonds falling into the VS or SI categories. In determining a clarity grade, GIA considers the size, nature, position, color or relief, and quantity of clarity characteristics visible under 10x magnification.

  • Flawless (FL) No inclusions or blemishes are visible to a skilled grader using 10× magnification
  • Internally Flawless (IF) No inclusions and only minor blemishes are visible to a skilled grader using 10× magnification
  • Very, Very Slightly Included (VVS1 and VVS2) Inclusions are difficult for a skilled grader to see under 10× magnification
  • Very Slightly Included (VS1 and VS2) Inclusions are clearly visible under 10× magnification but can be characterized as minor
  • Slightly Included (SI1 and SI2) Inclusions are noticeable to a skilled grader using 10× magnification
  • Imperfect (I1, I2, and I3) Inclusions are obvious under 10× magnification and may affect transparency and brilliance

The Color of the diamond is all about what you can’t see.

Diamonds are valued by how closely they approach colorlessness – the less color, the higher the value. Most diamonds found in jewelry stores run from colorless to near-colorless with slight hints of yellow or brown. The only exceptions are the fancy-color diamonds that lie outside of this range.

GIA’s diamond color-grading scale is the industry’s most widely accepted grading system. The scale begins with the letter D, representing colorless, and continues, with increasing presence of color, to the letter Z. Diamonds are color-graded by comparing them to stones of known color under controlled lighting and precise viewing conditions.

Many of these color distinctions are so subtle that they are invisible to the untrained eye. But these slight color differences make a very big difference in diamond quality and price.

How did the 4Cs of Diamond Quality Come to Be?

Because diamonds are so valuable, it’s essential for industry professionals to have a universal grading system when comparing diamond quality. In the mid-twentieth century, GIA developed the International Diamond Grading System™ and the 4Cs as a way to objectively compare and evaluate diamonds.

The Four Cs of diamond quality will give you a multitude of information about a diamond’s characteristics and value, but they can’t begin to describe one elusive quality – beauty. To do that, you’ll need to experience the diamond with your own eyes.


Caring for your Jewelry

To avoid daily abrasions of your gold, be careful to keep your jewelry away from harsh chemicals like those found in chlorine and other caustic cleaning fluids. Doing this will prolong your gold jewelry’s luster.

To clean your gold jewelry, simply use a solution of warm water and mild, detergent-free soap. Wash each gold piece gently using a soft-bristled brush or a new, soft toothbrush.

You can keep your gold pieces free of the harsh daily elements if you store them separately in soft cloth bags or in the original boxes.

Facts about platinum

Platinum is pure, an expression of integrity, a reflection of inner truth. Platinum’s purity endows it with a brilliant white luster. This helps to reflect the true radiance of diamonds. Because it is generally 95% pure (18 karat gold is 75% pure), platinum jewelry does not fade or tarnish and keeps its looks for a lifetime. Platinum’s purity makes it hypoallergenic and ideal for those with sensitive skin. Platinum jewelry is the perfect choice for a lifetime of everyday wear. Its density and weight make it more durable than other jewelry metals. Platinum does not wear away and holds precious stones firmly and securely. Like all precious metals, platinum scratches. However, the scratch on a platinum piece is merely a displacement of the metal and none of its volume is lost. So, even though wearing it each and every day may leave an impression on the surface, it remains what it was – a symbol for all things eternal

Facts about gold

Gold, like no other metal, has a fascinating history and a special place in the world. For thousands of years it has been used as an ornament of kings, a currency and standard for global currencies, and more recently, in a wide range of electronic devices and medical applications. It is also the only metal that forms no oxide film on its surface in air at normal temperatures, meaning that it will never rust or tarnish. White gold is very popular right now. It can be in 18-karat or 14-karat gold (but not in 22-karat, as it is yellow gold). In jewelry of all kinds, you can find 18k and 14k yellow gold. 18k gold contains a higher percentage of precious metal than 14k gold. It is made up of 75% gold, which is then alloyed with other metals. This is to assure that the piece will be strong enough to withstand everyday wear. 14k gold is made up of only 58.5% gold and 41.7% other metals. This gives the gold piece its strength. This means that the gold color for a 14k gold piece is not as rich as the 18k gold.

24 karat is 100% gold.
Too soft so not considered suitable for jewelry

22 karat is 91.7% gold
Again, too soft so not considered suitable for jewelry

18 karat is 75.0% gold
Used successfully in fine jewelry

14 karat is 58.5% gold
Used successfully in all jewelry

12 karat is 50.0% gold
Not used for jewelry

10 karat is 41.7% gold
This metal is the defined karat limit legally considered to be real gold in the United States.