搜索优化
English
搜索
Copilot
图片
视频
地图
资讯
购物
更多
航班
旅游
酒店
房地产
笔记本
Top stories
Sports
U.S.
Local
World
Science
Technology
Entertainment
Business
More
Politics
时间不限
过去 1 小时
过去 24 小时
过去 7 天
过去 30 天
按相关度排序
按时间排序
14 小时
EXCLUSIVE: The Gemological Institute of America’s CEO Susan Jacques Talks Diamonds ...
Jacques addresses the significance of the astounding Lucara Diamond recently discovered, and GIA's work helping dealers, ...
INSTOREMAG
4 天
How to Verify GIA Graded Diamonds
Millions of diamonds are graded in GIA Laboratories annually. However, more and more counterfeit diamonds have shown up in ...
来自MSN
22 小时
The Complete Guide to Diamond Cut
As the classic campaign slogan goes, “A diamond is forever.” You’ll wear your engagement ring for the rest of your life, so ...
INSTOREMAG
14 天
Protect Your Customers and Your Business
Protect Your Customers and Your Business One of the most pressing challenges facing the diamond industry is the risk of ...
Professional Jeweller
9 天
GIA unveils Fall 2024 issue of Gems & Gemology
The Gemological Institute of America (GIA) has revealed the Fall 2024 issue of Gems & Gemology (G&G). The Fall issue takes a focus on the implications of recent findings on oval, pear and ...
IDEX Online
9 天
Downturn Forces GIA to Close Israel Lab
(IDEX Online) - GIA is to close its lab in Ramat Gan, Israel, saying it is no longer "financially sustainable". The facility, ...
IDEX Online
10 天
Brown Band in Lab Grown is a Growth Remnant
They say it looks graining in a natural diamond (a defect in the diamond's crystal structure) but is actually a "growth ...
当前正在显示可能无法访问的结果。
隐藏无法访问的结果
反馈