Bvlgari turns to the humble amethyst to shape its latest high jewellery collection 22 May, 2019 - Allisa Noraini
Robb Recommends: Lesser-known gemstones that will be increasing in value soon 2 April, 2020 - Ho Yun Kuan
Most Expensive Mondays: Here's what a S$4.55 million lapis lazuli timepiece looks like 20 July, 2020 - Rachel Cormack
Most Expensive Mondays: New Zealand's on our list of countries for retirement, and we've a penthouse in mind 8 June, 2020 - Rachel Cormack
Natural green diamonds: How to tell if your coloured gemstone is the real deal 18 April, 2018 - Sonia Kolesnikov-jessop