鴿血紅V.S.牛血紅，應該選哪一顆？
乾淨度優先，顏色其次
理論說緬甸紅寶是最好的鴿血紅紅寶，但理論沒有說緬甸紅寶也有暗的牛血紅，理論說泰國紅寶是牛血紅，但理論也沒有說泰國也有鮮豔的紅寶石，亦可稱之鴿血紅的泰國紅寶，所以買寶石不要迷信產地，應該以品質最重要，好的泰國鴿血紅可稱之緬甸色的泰國紅寶，如果緬甸出現牛血紅的紅寶，亦可稱之泰國色的緬甸紅寶。
理論說挑選紅寶石，最重要的是顏色，其實理論沒有說因為鉻元素造成紅寶石的鮮紅色，但在極佳顏色的同時，也造成更多的瑕疵，甚至影響透明度。反之鐵元素造成了暗的牛血紅，但是老天很公平的，會讓牛血紅乾淨、清澈、火光好。所以緬甸紅寶鴿血紅大多嚴重瑕疵，若要找一顆顏色好又乾淨的幾乎是少之又少。這個時候一個聰明的挑選者應該以乾淨度優先顏色次之。在1980年代前後， 對於品質最挑剔的日本客戶，最喜歡亮度和乾淨度好的牛血紅寶，當時只要品質好的泰國紅寶會比不清澈的緬甸鴿血紅紅寶石貴很多。
理論說挑選紅寶石分為RED、VIVID RED、鴿血紅、牛血紅、櫻桃紅、緬甸色、泰國色、緬甸色的泰國紅寶和泰國色的緬甸紅寶，因為顏色分類繁雜，無公定制度，所以並無一定的行情，但是理論沒有說這些名稱並無公定制度，真正的定義，就是紅色要越紅越好，不夠紅的話只能稱之為PINK SAPPHIRE。而且愈鮮艷的紅愈好。其中有三組對比色，分別為紅帶橘紅的鮮豔色對比為紅帶棕的不鮮豔色。紅帶玫瑰紅的鮮豔色對比為紅帶暗紫的不鮮豔色。紅帶鮮紅的鮮豔色對比為紅帶暗紅的不鮮豔色。因不同的光源背景會影響紅色的深度和鮮豔度，要避免因為光源和背景而造成挑選上的誤差，比價錢一定要在同一光源，同一背景下才能比較出行情，有色寶石也是有行情的，但是行情是比較出來的。
理論說紅寶石最好的是顏色是鴿血紅，但是理論沒有說其實最有CLASS的是櫻桃紅(FRENCH COLOR)；為什麼呢?因為櫻桃紅在日光(白色冷光燈)下，是最好最頂級的PINK SAPPHIRE，在燭光(黃色燭光燈下)是最好的鴿血紅，在歐洲的某些鑑定所亦判定為PINK RUBY。當您參觀古歐洲古董珠寶時，大部分的紅寶石都是這種顏色，因為那時代的紅寶大多未經過熱處理，尤其真正老緬甸”莫谷”的紅寶以這種顏色為最常見。
熱處理V.S.天然色，哪一個比較值錢？
熱處理顏色漂亮優於不漂亮天然色
理論說紅藍寶石經過高溫加熱後，其化學結構變動，產生更美好的顏色及透明度，這是人為的優化處理，屬於一種不當行為。但理論沒有說，紅藍寶石在大自然的溫度下，也會產生這種優化現象，所以寶石學上認為熱處理只是人為利用大自然的現象加諸於寶石，是可以被接受的，至於熱處理優化後的顏色及透明度是否會變得更好，那可不一定。不管天然或人為都沒有百分之一百變好的定數，所以燒的好一樣值錢，燒不好一樣不值錢。在產地能燒的一定100%燒，不值得燒的才不會去熱處理。所以當一粒無燒過的紅、藍寶石其顏色不美，而一粒經過熱處理顏色的紅、藍寶石，顏色很美，這時候這粒經過熱處理的紅、藍寶石價值會比較高。但是如果經過熱處理和未經過熱處理的紅藍寶石，顏色品級都特別的高，品質相當，當然大自然變好的機會較低，人為變好的機率較高，所以這粒未處理的會比較貴。理論說應該購買未處理的紅藍寶，但當它貴到一定程度。又沒那麼地完美時，我們倒是建議購買經過熱處理的紅藍寶石，其投資的價值是一樣的。就投資的觀點來看，要買就買一個好的，千萬不要買一個不上不下的品質，因為有色寶石的行情是用比較出來的，不像鑽石有公訂的國際行情報價表。
Ruby knowledge
Pigeon blood red blood red V.S. cattle, should choose which one?
Cleanliness priority, followed by color
Burma Ruby theory that the best pigeon blood red ruby, but the theory does not say Burma Ruby also has a dark blood-red cattle, the theory that the Thai Ruby cattle blood red, but the theory does not say Thailand has bright ruby, also known as The pigeon blood red Thai Ruby, so do not buy gems superstition origin, should be the most important quality, good Thai pigeon blood red color can be termed Burma Ruby Thailand, Myanmar appears if cattle blood red ruby, also referred to Thailand Burmese ruby color.
Theory that the selection of rubies, the most important thing is the color, in fact, the theory does not say that because chromium caused fresh ruby red, but in very good color, but also cause more blemishes, and even affect transparency. Conversely iron caused a dark blood-red cattle, but God is fair, let bovine hemoglobin clean, clear, good fire. So mostly pigeon blood Burmese ruby seriously flawed, if looking for a good and clean color is almost rare. This time a clever selection should give priority to cleanliness color second. Before and after the 1980s, the quality of the most demanding customers in Japan, like most good brightness and cleanliness of cattle blood red treasure, as long as the quality was good Thai Ruby than not clear Burmese pigeon blood red rubies expensive.
Theory that the selection of ruby into RED, VIVID RED, pigeon blood red, blood-red cattle, cherry red, the color Myanmar, Thailand color, the color of Thai Ruby Myanmar and Thailand Burma ruby color, because color classification complexity, no officially sanctioned system, so the stock market is not certain, but the theory does not say that there is no officially sanctioned system of these names, the real definition is more red to red, the better, not red, then can only be called PINK SAPPHIRE. And the more the better bright red. There are three sets of contrasting colors which were red with bright orange color with brownish red contrast is not bright colors. bright red color contrast with the rosy red with dark purple color is not bright. bright red with bright red color contrast is not bright red with dark red color. Because of different red light background affects the depth and vividness, to avoid the error caused by light and background on the selection, the price must be compared to compare the prices in the same light, the same background, colored stones also have Quotes, But the market is relatively out.
The best theory that is pigeon blood ruby color, but the theory does not say that the most there CLASS is cherry red (FRENCH COLOR);? Why because cherry red in daylight (white cold light), the best and most top PINK SAPPHIRE, by candlelight (yellow candle lamp) is the best pigeon blood red, in certain identified by Europe also judged to PINK RUBY. When visiting the ancient European antique jewelry, most of the ruby is this color, because most of that era Ruby without the heat treatment, especially in the real old Myanmar "Mo Valley" Ruby in this color is the most common.
Heat treatment V.S. natural color, which is more valuable?
Heat treatment is better than not pretty color beautiful natural color
Theory that red sapphire after heated to high temperatures, changes its chemical structure, resulting in better color and transparency, it is man-made optimization, is a wrongdoing. But the theory does not say, ruby and sapphire at a temperature of nature, this optimization phenomenon will produce, so that the heat treatment on gemology only use natural phenomenon artificially imposed on the gem, it can be accepted, as the heat treatment optimization Are the color and transparency will be better, that's not necessarily. Whether natural or man-one percent do not have a set number of amazing good, so good, like burning worthless, worthless, like a bad burn. In the place of origin must be able to burn 100% burned, not worth burning was not going to heat treatment. So when a non-burnt red, sapphire whose color is not the United States, and a heat-treated color red, sapphire, color is beautiful, this time the grain of the heat-treated rubies and sapphires value will be higher. But if the heat-treated and non heat-treated ruby and sapphire, color grade are particularly high, the quality is quite certainly a good opportunity to change the lower nature, man becomes a high probability of good, so it will be more expensive grain untreated . Theory that should be purchased unprocessed red Sapphire, but when it expensive to some extent. When not any so imperfectly, we'd recommend buying the heat-treated ruby and sapphire, it is the same as the value of their investments. From the viewpoint of investment point of view, to only buy a good, quality do not buy a flattening out, because colored stones market is relatively out, unlike the international diamond price quote form of public order.
