There is limited information available regarding the specific details of large diamonds held in the treasuries of West asian countries, central banks, or private collections. The Diamond market is often private and discreet, making it challenging to obtain accurate and up-to-date information on individual diamond holdings. There have been notable diamonds associated with West Asian countries in the past. For example, the "Hope Diamond," one of the world's most famous diamonds, was once owned by several prominent figures, including King Louis XIV of France. It was later acquired by an American jeweler and eventually donated to the Smithsonian Institution in the United States. While the Hope Diamond is not currently located in a West Asian country, it demonstrates the historical connection between prominent diamonds and international collectors. Iran has a storied history with precious gemstones, particularly diamonds, many of which are part of the Iranian Crown Jewels.

• Darya-i-Noor (Sea of Light):
  Weight: Approximately 182 carats.
  Color: Pale pink.
  Origin: India.
  Current Location: Central Bank of Iran, Tehran. One of the largest and most famous diamonds in the world, the Darya-i-Noor is part of the Iranian Crown Jewels and is displayed in the Treasury of National Jewels in Tehran. It is believed to have been part of the Great Mogul Diamond.
• Noor-ul-Ain:
  Weight: Approximately 60 carats.
  Color: Pink.
  Current Location: Central Bank of Iran, Tehran. This diamond is mounted in a tiara that was designed for the Empress of Iran, Farah Pahlavi, for her wedding to Shah Mohammad Reza Pahlavi.
• Taj-i-Mah (Crown of the Moon):
  Weight: Approximately 115 carats.
  Color: White.
  Current Location: Central Bank of Iran, Tehran. Another significant diamond in the Iranian Crown Jewels, contributing to the collection's reputation for housing some of the most exquisite Gems in the world.

Saudi Arabia, known for its immense wealth due to oil reserves, also has notable diamond collections, though specific information about individual large diamonds is less publicly detailed compared to Iran. Saudi Arabia's royal family and wealthy private collectors are known to possess significant Gemstone collections, including large diamonds. However, detailed public information about specific large diamonds is scarce, reflecting the private nature of these holdings. The UAE, particularly Dubai, has become a global hub for luxury goods, including diamonds.

It's important to note that the diamond market is dynamic, and ownership of large diamonds can change over time through sales, auctions, or private transactions. Additionally, some countries or collectors may choose to keep their diamond holdings undisclosed for security or privacy reasons.The diamond of Daraye Nour is one of the largest diamonds in the world as a part of the treasures of the National Country. This diamond is unique to a person with a peach-pink color and a weight of 182 carats. The rare diamond is now in the Museum of Jewelry nation of Iran and to the support of the economy of Iran is known. In addition to Daraye Nour, the treasures of another also in the museum store will be the reserves of diamonds in Iran. For example,

• King Crown made up of Gold and Silver adorned with a jeweled of diamonds, pearls, rubies, sapphires, and coarse emeralds
• Taj Kiani from the Qajar kings with the gems of the diamonds, emeralds, rubies, and pearls
• Naderi Paisley that has a giant Stone Emerald in the center and several fine and coarse diamond.

Dubai’s role as a major diamond trading center means that many large and valuable diamonds pass through or are held by private collectors and dealers in the UAE. Specific notable diamonds in government or central bank collections are not widely publicized. Kuwait, Qatar, and Bahrain also have significant wealth and private collections of jewels, but like Saudi arabia and the UAE, specific information about large diamonds in their treasuries or central banks is not widely disclosed.

Countries like the UAE, particularly Dubai, and Bahrain have established themselves as important centers for diamond trade, hosting numerous auctions and private sales where large diamonds may be bought and sold. Many of the largest diamonds in West Asian countries are held in private collections or treasuries with a high emphasis on privacy and security, making detailed public information less accessible.While Iran stands out with its well-documented and historically significant collection of large diamonds within its Crown Jewels, other West Asian countries likely possess significant diamonds, primarily in private collections, with less public information available.

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