Is a diffused sapphire valuable?
The price between each level of treatment can range from. The exceptionally expensive US$5,000 per carat for unheated natural sapphires. To US$1 per carat for the new treatment lattice-diffused sapphires which has now flooded the market today. This is especially true with many dealers on eBay especially in Thailand.
What is diffusion gemstone?
Diffusion is a technique whereby certain natural elements, those used in nature when colouring allochromatic gems, are placed on the surface of the gem during the heating process and the colour is diffused into the gem.
Are unheated sapphires more valuable?
Are natural, no-heat sapphires more rare and valuable? Yes, sapphires that have not undergone any color or clarity enhancement along the supply chain (mine to retail) are rare and therefore more valuable than heated sapphires that are abundant in the market. Are all unheated sapphires the same? No.
Is lab created sapphire worth it?
In comparison to natural sapphires, lab created sapphires are also less expensive. Natural sapphires demand a high price as they are rare and difficult to mine and involve labour cost as well. Lab created sapphires are easy to make and comparatively more affordable.
What is a diffused star sapphire?
The gemstone used to make a diffused star sapphire is a sapphire. The diffusion process is done on the surface of the sapphire gemstone and could extend to around a millimeter into the gemstone. The process is done to create the star effect on the gemstone and the gemstone is then called a diffused star sapphire.
What is the most expensive sapphire in the world?
1. The Blue Belle of Asia ($ 17,564,156) The Blue Belle of Asia features a 392.52-carat untreated cushion cut sapphire from Ceylon. The Blue Belle of Asia, the sale of which was entrusted to Christie’s, entered the price of $ 17,564,156 on November 6, 2014, making it the most expensive sapphire in the world.
What is lattice diffused sapphire?
Lattice diffusion is a treatment process that uses heat and other chemicals to diffuse an element into a gemstone to change its color. Diffusing colorless corundum using these chemicals penetrates the stones around 2 millimeters deep, giving the stones rich and blue coloring.
What is a gemologist?
Gemology is the science of studying, cutting, and valuing precious stones, but the essence of gemology is in identifying the gemstones. One who works in the field of gemology is called a gemologist, and jewelers and goldsmiths also may be gemologists.
Are diffused sapphires real?
Given this fact, the diffused star sapphire gemstone is a good and reasonably priced gemstone. Diffused star sapphires can be had in fairly large sizes of 10x8mm oval, 12x10mm oval and even 14x12mm oval. They are always smooth cabachon cut gemstones without facets.
What color do sapphires come in naturally?
Sapphire is a precious gemstone, a variety of the mineral corundum, consisting of aluminum oxide ( α-Al2O3) with trace amounts of elements such as iron, titanium , chromium, copper, or magnesium. It is typically blue, but natural “fancy” sapphires also occur in yellow, purple, orange, and green colors;
What are lattice diffusion sapphires?
Lattice diffusion is a treatment process that uses heat and chemicals to diffuse an element into a gemstone to artificially change its color. Lattice diffusion-treated sapphires can be any color . In some cases the added color is shallow. In others, it goes all the way through the stone.
What are the types of Sapphire?
In addition to these varieties, sapphires are available in a colorless variety called the white sapphire or colorless sapphire. Some more color varieties of naturally occurring sapphire stones are green sapphires, orange sapphires, purple sapphires, and black sapphires. Tags.