Facet, flat, polished surface on a cut gemstone, usually with three or four sides. The widest part of a faceted stone is the girdle; the girdle lies on a plane that separates the crown, the stone’s upper portion, from the pavilion, the stone’s base.
What are the parts of a gemstone?
The Three Principal Areas of a Faceted Gem
- Girdle. The widest part of the gem, the girdle defines its outline. …
- Crown. For both cabochons and faceted gems, the top is called the crown. …
- Pavilion. …
- Mains. …
- Table Facet. …
- Break Facets. …
- Star Facets. …
- Pavilion Facets.
What is the table of a gemstone?
The Gemstone Crown
The term ‘table’ is used to describe the flat top of the crown. The crown of a gemstone is typically raised, though some crowns may be cut very high, flat or even concave.
What is a faceted gemstone?
A faceted stone is a type of gemstone cut where the stone has flat top, polished faces called facets across it and a pointed bottom. … Gemstones that are transparent are usually made into faceted stones to maximise their beauty.
What is the most expensive cut of gemstone?
The Most Expensive Gemstone Cut: Round Brilliant
The round brilliant cut holds the distinction of being the most expensive cut (especially for diamonds) and for having the highest degree of sparkle among all the other cuts.
What is the rarest gem?
Musgravite was discovered in 1967 and is arguably the rarest gemstone in the world. It was first discovered in Musgrave Ranges, Australia, and later found in Madagascar and Greenland. The first sizable gem-quality specimen was discovered in 1993.
What are the 4 precious stones?
The four most sought-after precious gemstones are diamonds, sapphires, emeralds, and rubies. gemstone can help you decide what you want to say with your custom piece of jewelry.
What is the difference between lapidary and gem cutting?
The process of cutting and polishing gems is called gemcutting or lapidary, while a person who cuts and polishes gems is called a gemcutter or a lapidary (sometimes lapidarist). Gemstone material that has not been extensively cut and polished is referred to generally as rough.
What do you call someone who facets gems?
Faceter. A person who cuts and polishes facets on colored gemstones. People who do this on diamonds are usually called cutters.
What is rose cut?
With anywhere from 3 to 24 facets, a Rose Cut Diamond resembles the shape of a rose bud. … In general, they are flat at the bottom and creating a larger surface area for the stone’s brilliance. One of the most striking characteristics of a Rose Cut Diamond is it’s flat base.
How much does it cost to get a gem cut?
$225.00 for a stone of up to five carats of finished gemstone weight. 5.01 – 35 carats: add $1.00 for each carat (over 5 carats). Yield: expect 15 – 25% yield from most stones… i.e.- if your rough piece weighs 10 ct, expect a 1.5 to 2.5 ct return.
Can you cabochon a diamond?
Can Any Stone Be A Cabochon? … Fully transparent stones, such as diamonds, suit faceting very well, because of the desirability of light reflection and refraction, and so are rarely seen as cabochons.
What are the 5 most precious stones?
5 Most Precious Stones
- Diamond. Diamonds are by-far the most popular precious stones. …
- Emerald. Emeralds are a rare variety of the mineral beryl. …
- Sapphire. Sapphires are one of the hardest stones on the planet; only diamonds surpass them in hardness.
- Ruby. The cost of a ruby is primarily decided by its color. …
- Red Coral.
Is Ruby more expensive than diamond?
Are Rubies More Expensive Than Diamonds? Although some rubies are incredibly valuable and can command very high prices, most rubies are considerably less expensive than diamonds of the same size. This lower pricing makes a ruby an appealing alternative to a diamond for an engagement ring or other jewelry.
What are the 7 precious stones?
Strictly speaking the precious stones are only seven in number—the diamond, the pearl, the ruby, the sapphire, the emerald, the oriental catseye, and the alexandrite; but to these are often added the so-called semi-precious stones—such as the amethyst, the topaz, the tourmaline, the aquamarine, the chrysoprase, the …