Morphologies and Surface Features of Diamond Samples from Southern Thailand
Somruedee Sakkaravej, Thanapong Lhuaamporn, Pantaree Lomthong, Wilawan Atichat and Pornsawat Wathanakul
Padparadscha Sapphire & heat treatment
In 2018 the Padparadscha engagement ring of Princess Eugenie (Figure 1), the niece of the king, gave
Challenges in the Detection of Ruby and Sapphire Treatment in the Thai Market
The detection of treatments in ruby and sapphire remains a critical aspect and has become an increas
Gemological Characteristics of New Transparent Brown Sapphire
A newly observed variety of faceted transparent brown sapphire has recently entered the gem market,