This special gem is graded on a scale that includes AAAA stones, AAA stones, AA stones, and B stones. AAAA represents the highest quality grade and these gems are extremely rare to find in nature, and therefore very expensive.
What does AAAA quality mean?
(Best) Natural AAAA gemstones are the top 10% of gemstones in terms of quality. They are rich green, moderately to slightly included and exhibits high brilliance. They are comparable to that used by the top 5th Avenue or Rodeo Drive Jewelers. Natural AAA.
What is a AAAA Sapphire?
These are the top 10% of natural sapphires available. They have a signature medium blue color and are slightly included. They are typically used in fine jewelry by the 5th Avenue or Rodeo Drive Jewelers.
What is AAA quality gold?
Superfine AAA AA A Commercial. Superfine:- (VS -VS2 – SI1) Or Very Big Bargain. This grade denotes that the product in question is clean, well cut, well polished, has smiling and lively color with consistency and appropriation. In terms of Jewelry it denotes gold jewelry with VS / SI diamond or VS / SI clarity …
What does Diamond clarity AAA mean?
Natural AAA carbonados are on the higher part of the grading scale. Black diamonds with this rating are evenly hued throughout. Moreover, this grading score is rare, with only 1% of gemstones meet this grading standard.
What is the highest quality gemstone?
The World’s Most Valuable (Prized) Gemstones
- Tanzanite. Discovered in 1967, Tanzanite is found only in northern Tanzania in the Mirerani Hills (in just a 4.3 x 1.2 mile mining area). …
- Black Opal. …
- Musgravite. …
- Red Beryl. …
- Alexandrite. …
- Emerald. …
- Ruby. …
What is the highest grade of Pearl?
A: The highest-quality pearl, with very high luster and only minor imperfections over less than 10% of its surface. B: High or medium luster. Surface may have some visible imperfections, but over no more than 30% of its area. C: Medium luster with surface defects over not more than 60% of the surface area.
How do you know if a sapphire is good quality?
You want to look for a sapphire that has no inclusions visible to the naked eye. experts look at the size, location and number of inclusions to judge clarity. The less visible the inclusions are, the higher the grade. Cut: The cut is essentially what makes a sapphire really sparkle.
What is the highest grade of Sapphire?
The best color for a natural blue sapphire is an intense, velvety, deep royal blue. This color of sapphire would be considered AAA quality, the rarest and most valuable. The second best color is a medium rich blue, or AA quality. Any blue sapphires that have a slight gray undertone fit into the A category.
Are dark blue sapphires more valuable?
Color has the greatest influence on a sapphire’s value, and preferred sapphires have strong to vivid color saturation. The most valued blue sapphires are velvety blue to violetish blue, in medium to medium-dark tones. Sapphires with these qualities command the highest prices per carat.
What does AAA quality shoes mean?
*A, AA, AAA, AAAA are narrow widths, the more “A’s” the narrower the shoe, every A decreases the width by ¼ inch. Sometimes this is designated by S” for slim (equal to A or AA), or SS for Super Slim, equivalent to AAA or AAAA.
How are black diamonds treated?
Unlike natural diamonds and Carbonados, treated black diamonds aren’t naturally black, they’re treated with heat to get their color. Black lab grown diamonds are man made, not mined from the earth like the others.
What is AAA quality pearl?
AAA High-Grade South Sea pearls representing the top 5-10% of a pearl harvest. Found in Fine Jewelry Stores. AAAA High-Grade South Sea pearls representing the top 2% of a pearl harvest. Surface. A Pearls having flaws on at least 60% of the pearl surface, with 20% containing deep imperfections.
How can you tell if a black diamond is real?
Also, one of the best ways to identify a black diamond is to check it with a magnifying glass. No matter how shiny the black diamond looks, it always comes with a few nicks and scratches on its surface. Even if it is a AAA quality black diamond. A natural black diamond never has a smooth surface neither treated one.
Which Diamond clarity is the best?
For diamonds over 2 carats, a clarity grade of VS2 or higher is the safest bet for avoiding any signs of visible inclusions. In diamonds between 1 and 2 carats, clarity grades of SI1 or better will not have inclusions easily visible to the naked eye.
Can black diamonds be certified?
Black diamonds fall outside this color range, so their color is evaluated based on GIA’s color grading system for colored diamonds. What’s more, because black diamonds are opaque – and, in most cases, heavily included – they cannot be graded on the GIA clarity scale.