What does trillion cut mean?
What does trillion cut mean?
The Trillion cut is a triangular shape comprised of three equal sides and 31 or 50 facets depending on whether the diamonds are used as solitaires or accent stones. For solitaires, a curved or convex cut is employed, whereas accent stones are cut uncurved or concave.
What is a stone cut?
Gemstone Cuts. Cutting gemstones is a process of turning rough, unpolished stones into gemstones as we know them, so they can be used in jewelry. Cutting gives the stones a specific shape and enables the true color and brilliance of the gem to emerge.
What is a checkerboard cut gem?
In a checkerboard cut, a faceter cuts the gem with square facets, so its crown and table resemble a checkerboard. This cut is often used on translucent stones.
Which gemstone has the most sparkle?
With a brilliance refractive index of 2.65 to 2.69, moissanite is the world's most brilliant gemstone.
Why are gems cut in certain ways?
Gemstone Cuts. Cutting gemstones is a process of turning rough, unpolished stones into gemstones as we know them, so they can be used in jewelry. Cutting gives the stones a specific shape and enables the true color and brilliance of the gem to emerge.
What does the e in QED stand for?
QED is an abbreviation of the Latin words "Quod Erat Demonstrandum" which loosely translated means "that which was to be demonstrated". It is usually placed at the end of a mathematical proof to indicate that the proof is complete.
What is a rose cut gem?
Rose cut. gem cut. Rose cut, method of faceting gemstones so that the base of the stone is wide, flat, and unfaceted, whereas the top of the stone is domed and covered with triangular facets. Often in two rows, the facets are grouped so that the very highest part of the stone terminates in a point.
What is a mixed cut gemstone?
Mixed-cut stones are a mixture of different faceting styles, ranging from round, oval or square diamond-cuts, combined with a scissor cut or a step cut. Mixed-cut gemstones can even be combined with a plain-cut, such as a buff-top cut gemstone which features a faceted pavilion and domed cabochon top.
What is the best cut for Ruby?
Brilliant cuts, such as round, pear or princess, enhance the light performance and brilliance of the ruby. Step cuts, like emerald and Asscher, and cuts with large facets like the old cushion cut, maximize the color and sometimes the size of the stone.
What is a quantum cut?
Introduction. Quantum cutting (QC) is a phenomenon that one high-energy photon is converted into two or more than two photons with low energy. QC was first reported in YF3: Pr3+, in which one ultraviolet (UV) photon was converted into two visible (VIS) photons of lower energy.
What is briolette cut?
Briolettes are a beautiful and elegant type of gemstone cut. The word Briolette simply refers to the pear-structured or oval stones that are cut in extended triangular facets, which cover its whole surface.
What do you call a gem cutter?
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).
What is a faceted gem?
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 table of a gemstone?
The table of a stone is the flat facet at the center of the crown. Facets are the flat, cut surfaces of the stone, and can vary in shape and size. The facets on the crown are called (surprise!) crown facets.
What is a pretzel cut?
This football shaped cut is also known as Navette Cut, and is crafted with 57 facets. It is a type of a modified brilliant cut, meaning it was cut to reflect the most light and offer maximum sparkle and color.
What is a brilliant cut stone?
A brilliant is a diamond or other gemstone cut in a particular form with numerous facets so as to have exceptional brilliance. The shape resembles that of a cone and provides maximized light return through the top of the diamond.
What cut has the most facets?
Brilliant cut diamonds were designed to have the most facets and the most sparkle. Of these, the modern round brilliant diamond cut is the most popular. With 57 (sometimes 58) facets, the classic round shape paired with numerous facets grabs the light better than any other diamond shape.
How do you cut a gemstone with a Dremel?
Turn on the Dremel tool. Using the grinding tip, grind the entire surface. Grind away the rough edges evenly by making the tool at a flat angle against the gem. Switch to 800 grit bit and continue the grinding process.
How do you cut faceted gems?
To cut the break facets, set the angle to 43.7 and the index to 2. Adjust the height so the gem barely touches the pre-polishing lap. Very gently, cut two facets at index 2 and 10. The technique is to introduce the gem to the lap with a very light hand and bring it towards the centerline.
What is a cabochon stone?
In the gemstone world, a cabochon is a stone that is cut with a highly polished, rounded or convex top with no faceting and a flat or slightly domed base. A cabochon may be cut in any shape, though oval is by far the most common. The term comes from the French caboche, meaning knob or small dome.
What is a double cabochon?
The single cabochon has a convex or arched up top and flat base. The double cabochon has both a convex or arched top and bottom, with the top usually higher than the bottom. … The hollow cabochon has a convex top and flat bottom, but the dome is hollowed out and polished.
What is fantasy cut gemstone?
Traditional gemstones are fashioned by placing them on a faceting machine with a flap lap tool, which grinds away and polishes the stone. Fantasy cut gemstones have grooves, optic dishes, and concave facets – all made possible by the development of tools to cut these design elements into gem materials.
What are the flat bottom faces of a gem called?
In gemology, a culet is a flat face on the bottom of a gemstone. During the 14th century, after the adoption of the table cut, a further facet was added to the bottom of the cut parallel to the surface of the table. The term used for these bottom facets derives from the Latin word for bottom, culus.
How can you tell a real ruby?
To tell if a ruby is real, start by looking at the shine of the ruby under a light. It should be bright and deep, like the shine of a stop light. If you're able to, try to scratch the surface of the ruby with your fingernail or a coin to make sure it doesn't break.