Difference Between Diamond and Solitaire

The jewelry industry deals with precious stones that are sometimes so rare that even minuscule quantities cost a huge amount.

The price of diamonds depends upon the size, cut, purity, and source. Various terminologies are used for diamonds that differ on the basis of these characteristics.

Diamond vs Solitaire

The main difference between diamond and solitaire is that a diamond is a crystalline form of the carbon element with a cubic structure whereas a solitaire refers to a single piece of any precious gemstone, more precisely, a piece of jewelry using only a single major piece of a gemstone. Solitaire diamond rings are very popular.

Diamond vs Solitaire

A diamond is made naturally when deposits of carbon are subject to intense high heat and pressure in the inner layer of the earth.

They are then ejected during volcano eruptions or can also be found in coal deposits since coal is also a form of carbon. It is the hardest and most thermally conductive material known to humankind.

Solitaire refers to jewelry that uses a single piece of a precious gem such as diamond, rubies, emeralds, sapphires, etc. This type of jewelry usually involves pendants, lockets, and rings.

Solitaires are costly as obtaining relatively large pieces of precious stones and then cutting and polishing them is a difficult task.

Comparison Table Between Diamond and Solitaire

Parameters of ComparisonDiamondSolitaire
MeaningA diamond is a precious stone that is formed naturally by carbon under pressure and heat.Solitaire refers to a single naturally defined gemstone used in jewelry.
CostlinessDiamonds are expensive as it takes a lot of effort to mine and fashion them into jewelry.Solitaires are even costlier than diamonds due to their incredible rarity.
SizeThey are less than 0.30 carats.Any diamond of more than 0.30 carats is a solitaire diamond.
ShapeThey have to be cut and polished since they naturally are crude.They are naturally defined which makes them incredibly beautiful and costly.
RarityA diamond is one of the most common gemstones found naturally.A solitaire gemstone is very rare since naturally defined stones can’ be formed easily.

What is Diamond?

A diamond refers to a carbon substance that is solid and contrary to popular belief, exists in many colors depending on impurities present in it.

Perfectly pure diamond is colorless and is the hardest substance known to man.

Natural diamonds were formed many million years ago under intense heat and pressure and were then erupted in volcanic eruptions and can be found in igneous rocks.

Diamonds have many rare properties like perfect hardness, highest thermal conductivity, yield strength, tensile strength, etc. Pure diamonds are transparent and colorless and odorless.

Nitrogen, boron, radiation exposure, etc can color the diamonds yellow, blue, and green respectively. They have a very high refractive index which is what gives them their characteristic sparkling appearance.

Diamonds have many applications in cosmetic as well as industrial use.

ndustry-grade diamonds are used in glass cutters and grinders. Industry-grade diamonds that are unfit for gem and jewelry making are called bort. Their hardness and high conductivity give them many industrial uses.

Diamonds are predominantly used for the creation of jewelry where they are cut and polished to make them more attractive and then, depending on the type of jewelry being made, diamonds or a single piece of a solitaire diamond, are embedded into precious metals like gold and platinum.

What is Solitaire?

Solitaire is a term referred to a single piece of precious stone and also to jewelry whose characteristic is having only a single gemstone embedded in precious metals.

Lockets and engagement rings are solitaire jewelry and demonstrate how popular solitaires actually are. Diamond solitaires are the most popular pieces of jewelry in the market.

Any singular pieces of gemstone bigger than 0.3 carats are called solitaires. They are also naturally defined and need minimal shaping, which also skyrockets their price.

Solitaires are the most expensive pieces of jewelry.

They are extremely rare in nature as not only do they have to be free from impurities, they also have to be shaped, sized, and defined enough to enable the manufacture of jewelry from it.

Solitaire diamond rings are colloquially known as engagement rings because that is the purpose they are most used for. They are available in many cuts like a rectangular cut, princess cut, etc.

The price also depends on the clarity of the stone. The second most popular solitaire gem is emerald, which has a green sheen and a diamond-like material.

Consumers in the market for solitaire gems should always check for certifications and always opt for reliable shops since solitaire diamonds are also forged a lot because of their exorbitant prices.

Main Differences Between Diamond and Solitaire

  1. A diamond is a carbon allotrope whereas solitaires are single pieces of gemstones.
  2. Solitaire jewelry is much more expensive than ordinary diamond jewelry due to the greater rarity of solitaire gems.
  3. Diamonds are small pieces that are cut, shaped, and polished together to form jewelry whereas solitaries are naturally defined and bigger than 0.3 carats.
  4. Solitaires are much rarer than normal diamonds since large crystallization of carbon is very rare and the circumstances in which it can be made naturally do not occur normally.
  5. Solitaire jewelry has only a single piece of precious gemstone in it whereas diamond jewelry has other precious stones and metals.
Difference Between Diamond and Solitaire


Diamonds were made in prehistoric times and magma ducts threw them out in massive eruptions. The general rule is that the rarer the precious stone is, the more is the price.

Diamonds are naturally very rare but gem-grade diamonds are even rarer and their clarity and size determine their price.

Solitaires are big pieces of diamonds or other precious stones and can cost up to 5 times as much as a normal diamond.

Engagement rings have only a single piece of diamond propped up by framed precious metals, usually platinum, and it can be custom-made as well.

Diamonds are graded very strictly into industry, gem, or chemical grade.


  1. http://www.ikcabstracts.com/index.php/ikc/article/download/1171/1171
  2. http://journals.christuniversity.in/index.php/ushus/article/view/1941
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