Why Does My Diamond Look Blue?

Why does my diamond look blue? Fluorescence is when a diamond shows a soft glow under ultraviolet (UV) light. This is caused by certain minerals in the diamond. This effect is totally natural, appearing in a third of all diamonds. Most diamonds with fluorescence will glow blue.

Do diamonds have a blue hue?

Natural diamonds with blue hues are rare; they typically have a yellowish hue due to nitrogen impurities. However, the diamond on the left has a yellow hue while the diamond on the right has a blue hue.

Are HPHT diamonds bad?

Purchasing HPHT diamonds is not recommended for several reasons. HPHT can only be used on high-clarity diamonds (VVS1, VVS2, VS1, VS2, and flawless) because the extreme pressure and temperature can cause diamonds with inclusions or fractures to explode during the process.

What is a tinted diamond?

Tinted Color Diamonds

Below an "M" in color, diamonds move from the "faint tint" category to the "tinted" category. Tinted colors are natural diamond body colors and can be extremely gorgeous when cut right. This is how these colors look in the lab when being graded.

What is a bluebird diamond?

Bluebird diamond was a trade name that a company used to call their. bridal line. It was a wholesaler, from Chicago I believe, called. Stein & Ellbogen(too many years have passed I may have the last name. wrong).


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Are blue diamonds valuable?

Blue diamonds are only considered rare and valuable if they are natural. Since the 1950s, many methods have been developed to change a diamond's appearance, including adding color to a colorless stone. These are considered enhanced diamonds and do not have the value or resale value of a natural blue diamond.


What does a blue diamond look like?

They range from light to deep, vivid blue. Depending on the color intensity, blue diamonds look like pale blue gemstones, vibrant blue stones or a mix of two colors like blue and purple. Secondary hues add tint and character to the stone.


Are all blue diamonds irradiated?

All diamonds have been exposed to natural radiation over the millennia before man unearthed them, so all colored diamonds have been "irradiated." Irradiated diamonds are genuine diamonds that exhibit an intense color change such as blue, pink, green, etc., after being exposed to a strong radiation treatment.


What does Hpht mean?

October 2017. What is HPHT? ( High Pressure, High Temperature) HPHT or High Pressure, High Temperature is defined as those Wells with a bottom hole temperature greater than 150°C (300°F) and requiring pressure control equipment with a rated working pressure of above 69 MPa (10,000psi) (S.P.E E&P Glossary, HPHT, 2013).


Do lab grown diamonds test diamonds?

Do lab grown diamonds test as real diamonds? Yes! Lab grown diamonds test positive on a diamond tester because they're made of crystallized carbon, just as mined diamonds are.


How do you tell if a stone is a blue diamond?

Most diamonds will reveal blue florescence under a black light; therefore, you'll see a medium to strong color of blue, which means the diamond is real. If you don't see the blue color and instead see a slight green, yellow or gray fluorescence then this usually indicates the gem is not a real diamond.


What color do fake diamonds reflect?

A real diamond appears gray and white inside (brilliance) when held to the light and can reflect rainbow colors (fire) onto other surfaces. A fake diamond will display rainbow colors within the stone when held up to light.


How much is a 1 carat blue diamond?

Blue Diamond Price

Carat Weight Blue Diamond Price per Carat
0.33 ct From $1,950 to $3,150
0.50 ct From $3,700 to $6,050
0.75 ct From $5,050 to $8,300
1.000 ct From $6,800 to $11,200

How much is a 6 carat blue diamond worth?

The “Farnese Blue,” a 6.16-carat pear-shaped fancy dark gray-blue diamond, was kept secret for centuries as it passed through the hands of some of Europe's most important royals. It sold for $6.7 million at Sotheby's Geneva Tuesday.


Are blue diamonds unlucky?

According to the legend, a curse attends the owner of the Hope diamond, a curse that first befell the large, blue gem when it was plucked (i.e. stolen) from an idol in India—a curse that foretold bad luck and death not only for the owner of the diamond but for all who touched it.


Are blue diamonds natural or manmade?

Although seemingly shocking to find such a beautiful colored diamond that is not manmade, blue diamonds are, indeed, created in nature.


What is a treated blue diamond?

Overview. Enhanced blue diamonds are natural diamonds that have undergone color enhancement treatments. Such methods, usually irradiation, transform the otherwise colorless precious stone into a vibrant shade of blue. These treatments are typically permanent and do not damage the diamond's chemical structure.


Where do blue diamonds originate?

Mines Known to Produce Blue Diamonds. Very few mines produce blue diamonds, and most of the important blue diamonds known to exist have come from just three locations: 1) a small area in India, 2) the Cullinan mine of South Africa, and 3) the Argyle mine of Western Australia.


What is a diamond seed?

In the lab, you can grow diamonds one of two ways: High Pressure High Temperature (HPHT) or Chemical Vapor Deposition (CVD). Both processes start with what's known as a “diamond seed,” a single crystal diamond in a slice about as thick as a human hair.


Is diamond Nexus cubic zirconia?

The Nexus Diamond alternative is a simulant stone. They are not cubic zirconia (CZ). Nexus Diamond alternatives are far superior to CZ, though both are technically “diamond simulants.” However, CZ degrades over time and loses its sparkle, while Nexus Diamond alternatives stay brilliant forever.


Are HPHT diamonds better than CVD?

The HPHT process is very costly, given the energy and equipment required, and produces diamonds with mainly yellowish or brownish yellow colors. The CVD method is much less costly because it works at moderate temperatures and low pressure, which requires smaller and less expensive equipment.


Does cubic zirconia pass a diamond tester?

No. Cubic Zirconia (or CZ) does not have high enough electrical conductivity to pass. So, when you test a CZ with a diamond tester, it will not show as diamond. In fact, distinguishing CZ from diamond is one of the most important uses of thermal conductivity pen testers.


Will VS diamonds pass diamond tester?


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