List of diamonds - Wikipedia
Diamonds occur naturally and vary in size, color, and quality, so the largest of a particular color may not be large in absolute terms, but may still be considered very desirable. Diamonds may also have high valuations in sale prices, and large ones invariably have a …
Most Precious Diamonds, - Gemological Institute of America
From the Hope diamond to the Spirit of the Rose, the Taylor Burton and the Lesotho Promise, we are trusted by museums and top auction houses all over the world to grade and research nature’s finest treasures.
The 11 Largest Diamonds In The World [As of 2024] - RankRed
2024年7月4日 · We've compiled a list of the largest diamonds in the world based on their weight. It includes large diamonds that are cut into smaller ones and those that are now lost.
GIA Gem Encyclopedia | Complete List Of Gemstones
Gem Encyclopedia is a virtual journey through the science and lore of Gemstones from across the globe. Each Gem page features Gemological Information, a Buyer’s guide, photos, videos & research.
The 21 Most Expensive Diamonds in the World - Luxury Columnist
2024年7月5日 · In this article, we’ll look at some of the most famous diamonds worldwide. First though, let’s look at the reasons why these gemstones are so exorbitantly priced. Why Are Diamonds Expensive? Taking their name from the ancient Greek word adamas meaning indestructible, diamonds are known for their physical qualities.
Types Of Diamonds: Cuts, Names & Clarity - Diamond Registry
2024年8月14日 · Types of diamonds refer to the various classifications of diamonds based on their physical characteristics, including cut, color, clarity, and carat weight. These classifications help determine a diamond’s value, appearance, and rarity in the gemstone market.
Rapaport Diamond Price List - The Global Industry Standard
Get the Rapaport Price for any diamond based on size, color, and clarity and apply a discount to see your price! Create a table of your results and export them to Excel with ease. The advanced calculator also shows RapNet Average and Best Discounts to the Rapaport Price List, helping you accurately price your diamonds.
Pricing Guides for Gemstones - GIA
A list of diamond and gemstone pricing guides to help you learn about gem and jewelry values.
GIA Diamond Grading Scales: The Universal Measure of Quality
2013年3月14日 · GIA created the 4Cs (Color, Clarity, Cut and Carat Weight) as a universal method for establishing the quality of any diamond, anywhere in the world. The 4Cs means two very important things: diamond quality can be communicated in a universal language, and diamond-buying consumers can know exactly what they are about to purchase.
Natural Diamonds | Diamond Stone – GIA C
Diamonds are among nature’s most precious and beautiful creations. Colorless diamonds are scarce—most diamonds have tints of yellow or brown. The rarity of one or more of the 4Cs can affect value. The crystal shape of a gem diamond is often the octahedron. Trigons—little triangular depressions—occur only on octahedral faces.