What are ruby inclusions?

There are nine types of inclusions that can be found in rubies. Needles, crystals, cavities, twinning, and feathers are similar inclusions to the ones you can see in diamonds. However, silk, fingerprints, scratches, and color zoning are all types of inclusions specific to rubies that you will often see.

Which type of inclusion can be a key identifying characteristic for gems such as ruby and sapphire?

Inclusions are among the most important features for identifying ruby and sapphire.

Which shape of ruby is best?

Ruby Shape The most popular shape is round. Accent rubies in wedding bands, solitaire rings, and earrings typically use the round shape. Ovals are the most popular with cutters. This is because an oval cut reduces waste and often is better to draw out the deep red color of the stone.

What is the difference between ruby and corundum?

Rubies are specifically the red variety of corundum . Ruby variety corundum is colored only by chromium, which is a rare element. Corundum can come in many other colors too, like velvety blues, sunny yellows, and any other color except emerald green.

What does AAA ruby mean?

Natural AAA – This grade represents just 1% of all natural gemstones. Any rubies in this category are extremely rare and expensive. Natural AA – This grade accounts for 10% of all natural gemstones that are available in the world.

What are the dark spots in ruby?

Black spot, yellow and brown spots, cracks, milky, are main inclusions of ruby. More inclusions means lesser clarity (purity). Clean is rare and fetches highest price. Ruby with better purity has more price and with lesser purity has lower price.

How do you identify inclusions in gemstones?

By looking at gemstones under a microscope, you’ll see the number and general type of inclusions. Doing this can help you determine if a gem is natural or synthetic; and that information can affect a gemstone’s value.

What is silk in sapphires?

Several types of inclusions are found in sapphires. Among these are long thin mineral inclusions called needles. Fine needles are called silk when they occur as the mineral rutile in intersecting groups.

Which ruby stone is best?

Burmese rubies are the best rubies in the world and the most sought after. Burmese ruby is the standard by which all other rubies are judged. AJS Gems specializes in Burma ruby and carry an selection of these fine gems.

What is the largest cut ruby?

The largest known ruby in the world is the 125West Ruby, which is certified by the Gemological Institute of America (GIA). The ruby weighs an astonishing 8.2lbs and is 18,696 carats; it also measures at 122.4mm x 112.3 mm x 133.9mm.

What is pigeon blood ruby?

Pigeon Blood Ruby is a July birthstone. Being among the most sought-after color variants of the ruby category, Pigeon blood ruby displays a bright red color with a small tint of purple hue that seems deep red when seen in the light. It somewhat resembles the fluorescent red signal of a high-intensity traffic light.

How can you tell a quality ruby?

The finest ruby has a pure, vibrant red to slightly purplish red color. In most markets, pure red colors command the highest prices and ruby with overtones of orange and purple are less valued. The color must be neither too dark nor too light to be considered finest quality.