"The Secret of Blue Diamonds" Do you know what blue diamonds are? Have you ever seen a diamond that shines with a sparkling, captivating blue color? In fact, blue diamonds are very mysterious diamonds. In this article, I would like to explain the secrets and rarity of blue diamonds.
table of contents
- The world's most famous gemstone
- The rarity of blue diamonds
- The value of blue diamonds
- What is the cursed blue diamond?
- Titanic "The Heart of the Ocean"
1. The world's most famous gemstone
There are several reasons why blue diamonds are said to be the world's most famous gemstones, including their rarity, beauty, historical background, high market value, scientific interest, and cultural (social) impact .
We will explain their rarity and historical background later, so for now we would like to talk about the beauty of blue diamonds .
The beautiful blue color of blue diamonds is said to be caused by trace amounts of boron in their crystal structure, and they are said to have a very vivid and unique charm not found in other gemstones .
In particular, deep blues such as Fancy Vivid Blue have fascinated many people with their beauty and brilliance that draws you in. And even the same blue comes in a variety of shades, from the pale blue Fancy Light Blue to the deep blue Fancy Deep Blue, each with its own unique charm.
In addition, high-quality blue diamonds have few inclusions (internal impurities) and are highly transparent, which allows light to easily penetrate the inside of the diamond and brings out its beautiful brilliance. They are often used in luxury jewelry, and their design and craftsmanship also enhance their beauty. Blue diamonds set in various jewelry such as rings, necklaces, and earrings also have value as works of art.
The reason why blue diamonds are said to be the most famous in the world is not only because of their physical beauty, but also because of a combination of factors such as rarity and unique characteristics that make them loved and special.
For more information on colored diamonds, please see "BRIGHT & BREEZY's Colorful Collection."
2. The rarity of blue diamonds
While natural diamonds are formed deep within the Earth under high temperature and pressure conditions, the conditions for the formation of blue diamonds are even more special and require specific geological conditions.
Diamonds are only produced in a limited number of mines in the world, such as the Golconda mines in India, where the famous Hope Diamond was discovered, and currently the Premier mines in South Africa.It is said that diamonds only account for an extremely small proportion of the total diamond production, about one in every million .
Although production is already low, high-quality blue diamonds with deep blue colors such as Fancy Deep Blue and Fancy Vivid Blue are even rarer.

Image source: uniglodiamonds.com
As mentioned earlier, the beautiful blue color of blue diamonds comes from the presence of trace amounts of boron in their crystal structure. Boron is an element that exists in relatively small amounts in the Earth's crust, and it is believed to be very rare for it to be incorporated into the diamond formation process . Therefore, the formation process and its rarity are of great interest to scientists and provide important clues to understanding the special formation conditions deep inside the Earth.
3. The Value of Blue Diamonds
Blue diamonds are very beautiful and rare, and there are many reasons why they are so valuable, all of which are quite convincing, so I would like to explain them one by one.
1. Color Grade
- Color Intensity : The value of a blue diamond is greatly influenced by its color intensity. The greater the color intensity, the higher the value, with deep, vibrant blues being particularly expensive.
- Uniformity of color : The more uniform the color and the fewer spots or uneven shades, the more valuable it is.
2. Clarity
- Presence or absence of inclusions : The amount and size of inclusions inside the diamond also affect its value. Diamonds with few inclusions and high transparency
- Surface imperfections : The fewer surface scratches and imperfections, the higher the value.
3. Carat (weight)
- Weight and value : Carat refers to the weight of a diamond, and the more carats, the higher the value. Large blue diamonds are particularly rare and therefore more valuable.
- Carat and Size Balance : Not only carat weight but also size and proportion balance affect value.
4. Cut
- Cut quality : The cut of a diamond is very important to maximize its brilliance. A good cut optimizes the reflection and refraction of light, enhancing the beauty of the diamond, so the better the cut, the higher the value.
- Cutting style : The cutting style also affects value, such as round brilliant cut, princess cut, or emerald cut, with round brilliant cuts being the most popular and expensive.
For more information on the 4Cs (color grade, clarity, carat, cut) please see BRIGHT & BREEZY's "Commitment to Quality"
5. Certificates and certifications
- Reputable grading agency : A diamond with a certificate from a reputable grading agency such as GIA (Gemological Institute of America) is a guarantee of its quality and value, making it even more valuable.
- Detailed appraisal information : A appraisal that provides more detailed information about color, clarity, carat and cut makes it more credible for buyers and increases the value.
(*The image shows the certificate for BRIGHT & BREEZY lab-grown diamonds.)
6. Market Supply and Demand
- Scarcity of supply : Blue diamonds are so rare that there is a very limited supply of them, but this rarity is a major factor in driving up their market value.
- Increasing demand : As the demand for blue diamonds increases, so does their market value, especially among investors and collectors.
7. Historical and cultural value
- Famous Blue Diamonds : Diamonds with historical backgrounds and ownership histories, such as the Hope Diamond and the Blue Whittlesbach Diamond, are also very expensive due to their cultural value.
- Celebrity Owned : Blue diamonds that have been owned by famous celebrities or royalty are believed to be more valuable due to their history and buzz.
8. Investment Value
- Long-term value increase : Blue diamonds are very attractive as long-term investments due to their rarity and beauty, and depending on the supply and demand balance in the market, their value may even increase in the future.
The value of a blue diamond is determined by a combination of these various factors. In addition to the rarity and beauty we have discussed so far, factors such as quality, historical background, and whether or not it has an appraisal certificate also seem to increase its value.
4. What is the cursed blue diamond?
From here, I would like to tell you an interesting story about blue diamonds. Do you know the "Hope Diamond"?
This Hope Diamond...
It is said to be the "Hope Diamond that brings its owner to the depths of misfortune." This legend comes from an anecdote about the unfortunate endings of people who owned the Hope Diamond.
The Hope Diamond was discovered by chance in the 9th century by an Indian farmer.
At the time, diamonds were often offered to temples in India, and a legend spread that one had been stolen from a Hindu temple, which is said to be the beginning of the curse.
Later, a French jeweller named Davernier is said to have been the person who brought the Hope Diamond back from India, but legend has it that he was later killed by a wolf.
It was then purchased by King Louis XIV of France, and later passed to Louis XVI and his wife Marie Antoinette, who were executed during the French Revolution .
Furthermore, after its owners went bankrupt one after the other, it eventually came into the hands of Harry Winston, who was a diamond dealer at the time. Harry Winston donated it to the Smithsonian Institution, where it is now on display . The museum also introduces the curse of the diamond, which is of interest to many tourists.
Source : https://ja.wikipedia.org/wiki/Hope_Diamond
What's particularly interesting is that when Davernier first purchased it, it was said to have been about 112 carats, but when Louis XIV bought it, it was cut even more beautifully and became about 67 carats. This was a time when men wore beautiful jewelry to show their power, and "blue diamonds" were also called "French blue" and "crown blue," so it seems that diamonds were already being cut beautifully in this era.
5. Titanic "The Heart of the Ocean"
Another thing that is said to be modeled after the Hope Diamond is the pendant that was a key feature in the well-known movie "Titanic."
The news of the sinking of the British luxury liner "Titanic" in the middle of the night on April 14, 1912, was a shocking event that shook the world. At the time, it was said that the Titanic would never sink, so many people were shocked to see the unbelievable truth that it had actually sunk.
The movie "Titanic," released in 1997 starring Leonardo DiCaprio and Kate Winslet, is a well-known classic based on this true story. The scene where Rose posed for a painting wearing only this pendant is surely memorable for many people.
However, in addition to the two main characters, there is another important key item in this movie. That is a huge heart-shaped blue diamond pendant called "The Heart of the Ocean." This pendant is said to be modeled after the Hope Diamond, although its shape is different.
Image source: https://golaw.com.br/brand, https://celeb-cz-jewelry.com/
The cursed history of the Hope Diamond and the story of the sinking of the Titanic seem to share the same image as the worst tragedy to befall a glamorous world.
In fact, there is a product called a "Titanic pendant" that is made with sapphire and diamonds, and the heart shape with a ring is one of the popular designs.
Click here for BRIGHT & BREEZY heart-shaped & surround design rings
spirale /heart https://brightbreezy.life/products/10
What did you think? This time, we talked about the very rare blue diamonds.
I had seen blue diamonds before, but when I learned about this story, I was surprised and intrigued. In addition to their beauty, it may be that it is these stories and other things that fascinate people all over the world.
The world of not only diamonds but also gems and jewelry is very deep and more mysterious than you might imagine. I would like to continue to spread the word so that gems and jewelry become more familiar to everyone.
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