2卡缅甸AGL认证无加热红尖晶，正红的红

加张户外拍的图

很美

太棒了

真漂亮，多少米？

漂亮，多钱？

缅甸珠宝感

还算漂亮，不带那点黑皮就更漂亮了

真好看

和我出掉的那颗2卡莫谷火焰红的颜色很像。。。不过我那颗是纯祖母绿切割，两头火彩没有这么好。。

奶体的就劣质了？

不错的，价格多少

颜色好漂亮

很不错

好宝贝漂亮！

没有看到橙色，不算火焰，应该是鸽血红吧?

短个价？

仔细看第一张第二张是有橙色调的。不过总体来说还是非常正的红

呵呵

短了

谢谢

呵呵

谢谢

恕我孤陋寡闻，红尖晶还有加热的？

当然。很多年前就有加热了。我个人就见过听说过最早到2006年，2009年购买的尖晶，最近被测出加热。
http://www.gia.edu/gia-news-research-NR32209A GIA的文章
GRS ALERT 22nd May 2015: New type of treatment of spinel discovered involving heat-treatment and Cobalt-diffusion. GRS的文章，除了加热，蓝尖晶还有扩散处理

哦，长知识了，谢谢科普~~！我前几天是看到了钴扩散那篇文章，不过加热的真还没看到过

加热这个，貌似只能改变净度？尖晶加热到1200度颜色不会奔负面去吗？

好几年前是有人做过实验，说加热提高不了颜色只能改变净度。不过谁知道现在是什么情况。
而且今年突然多了很多注油，树脂的缅甸红蓝宝和尖晶。英文好可以自己看下Richard hughes的这篇文章，4月初的。
http://www.lotusgemology.com/ind ... lert-for-oiled-gems

Lotus Gemology warns that oiled rubies, sapphires and spinels are entering the Bangkok wholesale market in increasing numbers. Most, but not all, of these gems are originating from Burma.
3 April 2015—Over the past few months gemologists at Bangkok's Lotus Gemology have noticed a disturbing increase in the number of gems submitted for testing that have been subjected to fissure filling with oils/resins. This situation has now reached the stage where a trade warning is in order.
In our opinion, it is not the place for gemologists to decide what is and is not acceptable in terms of treatments. Certainly there is a place in the market for natural, treated, synthetic and imitation stones. That said, we have had a string of clients who, upon being told their stones have been fissure-filled, were visibly displeased. Not a single one was informed about the presence of this treatment at the point of memo or sale.

Standard operating procedure at Lotus Gemology is to ask customers at the time of take-in if they believe their stones are treated, and if so, by what method. Since opening our doors in July 2014, we have not had a single customer declare to us that the ruby, sapphire or spinel they were submitting was filled with oil/resin. In virtually all cases, when we inform the client that the stone is fissure-filled with an oil/resin (on Lotus reports the enhancement code is FF-O, plus levels 1–4 depending on the treatment's impact on appearance), they ask to have the gem back so the filler can be removed.

We believe this speaks volumes, suggesting that at the Bangkok wholesale trade level, both sellers and buyers are unaware their goods have been oil/resin treated. Thus the purpose of this trade alert is to inform buyers so they can make educated decisions. At the same time, we want to inform sellers that they may have a problem with their suppliers, who have not properly informed them of the treatments applied to the gems purchased. Finally, we believe it's important to inform gemologists around the world to be on the lookout for an enhancement that they might not be fully aware of.

借助谷歌翻译也行：）
我想Richard能发布trade alert，应该数量不少吧。

好正的红，漂亮，互闪

还是老评价，来个大个儿的！