條痕測試 https://www.youtube.com/watch?v=FVUFeXxuYQw&t=598s 【Gem-A Live: Beryllium Diffusion in Sapphire】 * Gem-A Youtube : https://www.youtube.com/watch?v=47INLF-5yQA&t=3214s 【Gem-A Live: Titanium Diffusion in Sapphire】 * Gem-A Youtube : https://www.youtube.com/channel/UC7GQ2rgUeIzkQMDerssby3w 【Gem-A Live: Introduction to Diamonds】 Gain a better understanding of diamonds in this beginners guide to diamond study. This video will explain how diamonds are formed, what makes them special and how to assess their value and qualities using the Four Cs: cut, colour, clarity and carat weight. You will learn the basics of diamond certification and begin to discover the broader issues of diamond synthetics and simulants. This webinar was delivered by Gem-A diamond tutor, Delyth Du Plooy. * Gem-A Youtube : https://www.youtube.com/channel/UC7GQ2rgUeIzkQMDerssby3w 【Gem A Live : Flux healed Ruby】 Gem-A guest, lecturer Julia Griffith FGA/DGA, tells us more about this highly prevalent ruby treatment: flux healing. 本講座涵蓋的內容: 該網絡研討會是每週一次名為Gem-A Live的網絡研討會。 這些網絡研討會是由Gem-A與jewelleryadvisor.com聯合創建的。 * Gem-A Youtube : https://www.youtube.com/channel/UC7GQ2rgUeIzkQMDerssby3w 【Gem-A Live : 複合寶石(Composite Gemstones)】 寶石學家Julia Griffith FGA/DGA講師,對複合寶石有深入的了解。 本講座涵蓋的內容: 該網絡研討會是每週一次名為Gem-A Live的網絡研討會。 這些網絡研討會是由Gem-A與jewelleryadvisor.com聯合創建的。 * Gem-A Youtube : https://www.youtube.com/channel/UC7GQ2rgUeIzkQMDerssby3w
十二月生日石-鋯石、坦桑石影片出爐囉 鋯石 : https://www.youtube.com/watch?v=PgwKSn-pyNo 坦桑石 : https://www.youtube.com/watch?v=vdXv0v6BlEc 十一月生日石-托帕石、黃水晶影片出爐囉 https://www.youtube.com/watch?v=Pg1DTsH69mw&t=215s 十月生日石-碧璽、蛋白石影片出爐囉 https://www.youtube.com/watch?v=-1WRdroNehA 九月生日石影片出爐囉 https://www.youtube.com/watch?v=K21egQB0VIU&feature=youtu.be 八月生日石-橄欖石影片出爐囉 https://www.youtube.com/watch?v=xwf5xBBjWGA&feature=youtu.be 八月生日石-纏絲瑪瑙影片出爐囉 https://www.youtube.com/watch?v=u0q8F9yjqUM 八月生日石-尖晶石影片出爐囉 https://www.youtube.com/watch?v=frghJ6eO2cQ 七月生日石-紅寶石影片出爐囉 https://www.youtube.com/watch?v=zRxBJ3W5W58&t=8s 六月生日石-珍珠影片出爐囉 https://www.youtube.com/watch?v=GkaIRACv4UU&t=106s 六月生日石-亞歷山大石影片出爐囉 https://www.youtube.com/watch?v=wQLt371VHpo&t=436s 五月生日石-祖母綠影片出爐囉 https://www.youtube.com/watch?v=jXnGj8hCr2Y&t=482s 四月生日石-鑽石Part1影片出爐囉 https://www.youtube.com/watch?v=PY0iw0iJuCk&t=203s
四月生日石-鑽石Part2影片出爐囉 https://www.youtube.com/watch?v=4FL1akqlses&t=31s
四月生日石-鈦晶Part3影片出爐囉 https://www.youtube.com/watch?v=bSp8q7jTkMs&t=3s 三月生日石-海藍寶石影片出爐囉 https://www.youtube.com/watch?v=wqyVoIb39iI&t=4s 一、二月生日石-影片出爐囉 |