Every diamond is valued by its carat weight, its colour, its clarity and its cut.
No one cut is 'better' or 'more valuable' than any other cut, because the cut is decided upon to show off the other characteristics of the stone, such as its colour or its clarity.
Small -- less than one carat, poorly cut stones with visible inclusions, are not very valuable
Because there is less of them than gold and they are harder to mine.
'Citrine' is the brand (?) name for yellow; diamond is the mineral. Your local jeweler can verify that this gem is a diamond. If you are buying a citrine diamond, ask for documentation as to its authenticity, including the source of its colour: natural or enhanced. (Yellow diamonds, regardless of the name of the yellow colour, that are enhanced, are less valuable than naturally coloured diamonds.) As a note, citrine is also the name for the yellow variety of quartz, which is far less valuable than diamond.
The diamonds on the ring may be more valuable than the ones on the necklace.
Cubic zirconia rings are much less expensive than diamond rings. A cubic zirconia ring may cost around $700 while a diamond ring can cost upwards of $40,000. Cubic zirconia is a much less valuable stone than diamond is and cubic zirconia rings are priced as such.
All diamonds hold their value, depending on what you paid for your diamond. When you purchase a diamond from a commercial jeweler, you're paying the highest markup. You may not be able to recoup this value for many, many years. The more you learn about diamonds, the easier it will be for you to purchase a diamond at the lowest possible price.
A real diamond is generally more valuable than a synthetic diamond due to its rarity and natural creation process. Real diamonds are formed deep within the Earth's mantle over millions of years, while synthetic diamonds are created in a controlled laboratory setting. These differences in origin and scarcity contribute to the higher value of natural diamonds.
The mineral known as the brown diamond is called "brown diamond" or "chocolate diamond." Brown diamonds get their color from structural defects and impurities within the crystal lattice, making them less valuable than traditional colorless diamonds but still appreciated for their unique hues.
A diamond, ruby or sapphire is said to be a "precious" stone. An amethyst is said to be a "semiprecious" stone. Semiprecious objects are therefore less valuable than precious ones.
yes jade is an less valuable mineral than gold
A cultured diamond is made in a laboratory and is not a natural stone, even though it is manufactured from carbon. Industrial diamonds have been made in laboratories in America since the 1950s, and gem-stone quality diamonds only recently. What can be inferred from the phrase in your question is a description of a gem-stone quality diamond (which is always less valuable than a natural diamond).
No, a high quality 2 ct diamond, worth north of $10,000, would be set in high-karat gold or platinum, silver is used for less valuable goods.