Most Expensive Stone

Welcome to the fascinating world of precious stones, where beauty and value collide. When it comes to precious stones, few things that capture our attention and imagination quite like their beauty and value. 

But have you ever wondered what the most expensive stone in the world is? This highly coveted stone is not only rare and beautiful, but it holds a rich history and cultural significance as well. 

In this blog post, we will dive into the dazzling world of gems and uncover the identity of the most expensive stone in existence. Get ready to be dazzled by its beauty and intrigued by its origins!

Basis For Determining The Value Of Stones

Before we reveal the world's most expensive stone, let's first understand how the value of precious stones is determined. There are a few key factors that contribute to the high price tag of these coveted gems.

  • Rarity: The rarer a stone is, the more valuable it becomes. Gemstones like diamonds and rubies are highly sought after due to their limited supply and high demand.
  • Color: The color of a stone can greatly impact its value. In general, vibrant and intense colors are more desirable and valuable than muted or pale tones. For example, a deep red ruby will fetch a higher price than a light pink one.
  • Clarity: Similar to diamonds, the clarity of a gemstone is also a significant factor in determining its value. Stones with fewer flaws and imperfections are considered more valuable.
  • Size: The size of a stone also plays a role in its value, as larger stones are rarer and therefore more valuable. This is why extremely large diamonds or rubies can sell for millions of dollars.
  • Cut: The craftsmanship and quality of the cut can greatly enhance a stone's beauty and value. Precise cuts that maximize a gemstone's brilliance and fire are highly prized.

Each of these factors plays a critical role in not only defining the beauty of the stone but also in determining its market value. A gem that excels in all these aspects is indeed a rare find and commands a price that reflects its exceptional status.

Most Expensive Stone

Now we come to the main part, so what is the most expensive stone in the world ever sold? No other stone other than Pink Star Diamond!

In April 2017, this stunning oval-shaped diamond weighing an impressive 59.60 carats was sold at a Hong Kong auction for a record-breaking price of 71.2 million dollars. This enormous sum shattered the previous record held by the Oppenheimer Blue Diamond, which sold for $50.6 million in 2016.

The Pink Star Diamond is a Type II diamond, meaning it has exceptional chemical purity and is almost entirely devoid of any impurities. Its unique hue is an intense pink color that is caused by the presence of trace amounts of nitrogen during its formation process.

Aside from its rarity and stunning color, the Pink Star Diamond also holds a fascinating history. It was originally mined in South Africa in 1999 and weighed an astonishing 132.5 carats in its rough state.

It took two years for master craftsmen to transform it into the flawless, vibrant pink gem we see today. It has also been owned by several prominent jewelers and collectors, further adding to its allure.

The allure of the Pink Star Diamond extends beyond its impressive sale price and rarity. The beauty of this gemstone is dramatically enhanced when set in fine jewelry, often becoming the centerpiece of incredibly luxurious and artistically crafted pieces.

The Pink Star Diamond's transition into a piece of exquisite jewelry not only signifies its monetary value but also its status as a masterpiece of nature and craftsmanship. It reflects a perfect marriage of art and the earth's treasures, making it the most expensive stone ever sold and a mesmerizing marvel for admirers around the world.

Top Of The World's Most Expensive Stones

Shifting our focus from the record-breaking Pink Star Diamond, we now turn our attention to the stones that command the highest prices per carat in the market today. These gems are not just valuable for their size but for the extreme rarity, unique colors, and the perfect conditions under which they were formed.

Here, we will highlight some of the most extraordinary gems that, while they may not have reached the astronomical selling price of the Pink Star Diamond, nonetheless fetch awe-inspiring figures per carat, setting them apart as some of the most sought-after and expensive stones in the world.

1. Blue Diamonds (Price Per Carat Up To 3.93 Million USD)

Blue diamonds are incredibly rare, and their unique color is caused by the presence of boron during their formation. The most famous blue diamond is the Hope Diamond, which weighs 45.52 carats and has an estimated value of $200-350 million.

Even though the Hope Diamond is among the most famous and captivating gems in the world, it does not claim the title of the most expensive stone due to several factors.

The Hope Diamond, while extraordinarily valuable and steeped in history and mystique, is outpriced by the Pink Star Diamond for a few reasons. 

The Pink Star Diamond's staggering price of $71.2 million was greatly influenced by its rarity as a large, flawless pink diamond, a category that is exceedingly rare in nature.

Additionally, the market demand for colored diamonds, especially pink ones, has seen a significant increase, contributing to the Pink Star's record-setting price. Furthermore, the Hope Diamond has not been sold in recent years, and its value is thus estimated rather than confirmed through a recent public sale. 

So although this diamond has a higher estimated value than the Pink Star Diamond, it has not yet been successfully sold so it cannot be said to be the most expensive stone.

Blue diamonds represent rarity, elegance, and depth, often symbolizing wealth, luxury, and exclusivity. These stunning gems carry a unique beauty with their mesmerizing deep blue hue, standing out as a symbol of nobility and tranquility.

Suitable for various types of fine jewelry, blue diamonds are especially favored in engagement rings, earrings, and pendants, offering a striking contrast against white gold or platinum settings. Their distinct color also makes them exceptional for custom statement pieces, such as brooches or cufflinks, where their rare beauty can be showcased prominently.

2. Pink Diamonds (Price Per Carat Up To 1.19 Million USD)

Pink diamonds are some of the most valuable and sought-after stones in the world and are often referred to as "the ultimate luxury item." They come in a range of colors and intensities, from light baby pinks to deep purplish-red hues. The more intense the color, the higher the price per carat.

The rarity and desirability of these lovely gems are caused by several factors, including their formation and natural coloring. 

Unlike other colored diamonds' hues, which are typically caused by trace elements during the crystal's growth process, pink diamonds get their color from an unusual deformation in the diamond lattice structure.

This anomaly occurs when a tremendous amount of pressure is exerted on the stone due to its environment. As a result, the crystal structure changes, and it absorbs light differently, creating that distinctive pink hue.

Pink diamonds' high value is also attributed to limited supply; only a tiny percentage of diamonds produced have any color at all, and even fewer are pink. In fact, for every million carats of rough diamonds mined, only one carat will be suitable for sale as a pink diamond. 

This makes them exceedingly rare and highly coveted, with prices that continue to rise in the market. Pink diamonds symbolize romance, creativity, and luxury, making them a prized choice for those looking to make a statement with their fine jewelry. 

This exclusivity makes pink diamonds especially suitable for engagement rings, as they represent a rare and enduring love.

Beyond engagement rings, pink diamonds are equally stunning in necklaces, bracelets, and earrings, often set in rose gold to complement their warm tones or in white gold or platinum to accentuate their brilliance.

3. Red Diamonds (Price Per Carat Up To 1 Million USD)

The rarest of all diamonds are red diamonds, the most highly coveted and valuable colored diamond. The only known source of red diamonds is the Argyle Diamond Mine in Western Australia, and it produces less than 0.1% of the world's annual rough diamond output.

Due to their rarity, intense color saturation, and high demand from collectors, these gems can command prices up to $1 million per carat. 

Only a handful of red diamonds have ever been sold at auction, with the most notable being the 5.11-carat Moussaieff Red Diamond, which sold for a staggering $8 million in 2001.

Red diamonds, with their fiery and mesmerizing hue, are symbols of passion, strength, and enduring love. Their intense color and scarcity make them highly desirable, embodying the pinnacle of luxury and exclusivity in the gem world.

Because of their striking appearance and significant value, red diamonds are particularly suitable for high-end, bespoke jewelry pieces that are designed to make a bold statement. They are often the centerpiece of rings, particularly engagement rings, where their unique beauty can be appreciated up close.

Red diamonds also lend an extraordinary flair to pendants and earrings, serving as a luxurious accent that is sure to attract attention and admiration. 

Due to their rarity, jewelry featuring red diamonds is often custom-made, allowing for a personalized and unique expression of individual style and elegance.

4. Emerald (Price Per Carat Up To 305 Thousand USD)

While diamonds may be the most expensive and sought-after gemstones, other precious stones can also command high prices in the market. One such example is emeralds, known for their vivid green color and historical significance.

The highest quality emeralds are found in Colombia, where they have been mined since ancient times by the indigenous Muisca people. The vibrant green hue of Colombian emeralds is attributed to the presence of chromium and vanadium during their formation.

Because of their rarity, top-quality emeralds can fetch prices up to $305 thousand per carat. This was demonstrated in 2017 when a rare 18.04-carat Colombian emerald sold for an impressive $5.5 million at auction, setting a new world record for the most expensive emerald ever sold.

Emeralds, with their rich green color, have long been symbols of rebirth, fertility, and love. This vibrant gemstone is not only celebrated for its breathtaking beauty but also its supposed healing properties, offering peace, security, and inspiration to those who wear it.

Due to their lush, captivating hues, emeralds are particularly suitable for all types of fine jewelry, including engagement rings, necklaces, earrings, and bracelets. 

Whether set in gold to enhance their warm tones or encased in platinum or silver for a striking contrast, emeralds can elevate any piece of jewelry to an object of profound beauty and elegance.

Yet, even smaller stones are sought after for their intense color and charm, making them versatile additions to both classic and contemporary designs. Their unique allure makes them a favorite among jewelry designers seeking to create pieces that speak of timeless sophistication.


In conclusion, the most expensive stone in the world is still the diamond, with its rare and valuable colored variations commanding even higher prices. These gems have captivated humans for centuries, not only for their beauty but also for their symbolic significance and perceived healing properties.

Each gemstone has its unique characteristics and allure, making it highly coveted by collectors and jewelry enthusiasts alike. Whether set in a bespoke engagement ring or incorporated into a one-of-a-kind necklace, these precious gems continue to capture our imagination and remain symbols of beauty, luxury, and enduring love.

So, if you own a piece of jewelry adorned with one of these precious gems, consider yourself part of an elite group who appreciates the true value and splendor of these magnificent stones.