News

Gem Focus: Red Spinel — A Red That Owes Nothing to Ruby
Spinel spent a thousand years being called ruby. An FGAA gemmologist on what red spinel actually is, where it comes from, what is honestly known about its treatment, and what it costs per carat in 2026. Read more...
Queensland boulder opal pendant showing ironstone and play-of-colour
What Is Boulder Opal, and Why Does the Ironstone Stay On?
Boulder opal is precious opal that formed in seams and pockets running through ironstone in Queensland, and it is cut with that host ironstone left on the back. The rock... Read more...
Australian boulder opal ring worn on the hand
Opal for Everyday Wear: Durability, Settings and the Engagement Ring Question
Opal can be worn every day, but it asks more of you than sapphire or diamond. At 5.5 to 6.5 on the Mohs scale it will pick up fine scratches... Read more...
Australian opal pendant showing bright play-of-colour
What Determines the Value of an Australian Opal
An opal's value is set by eight drivers, weighed roughly in order: body tone, brightness of play-of-colour, which colours are present (red rarest through to blue most common), pattern, how... Read more...
Australian opal pendant worn — the October birthstone
Opal: The October Birthstone and Australia's National Gemstone
The October birthstone is opal, with tourmaline as the modern alternate. Opal is also Australia's national gemstone, proclaimed in 1993, and Australia has historically produced the large majority of the... Read more...
Sapphire Rings_Ministry of Gems
The Sapphire Engagement Ring Buyer's Guide (Australia, 2026)
How to buy a sapphire engagement ring in Australia: choosing colour, origin and treatment, the 4Cs, settings, certification, honest budget guidance and bespoke design. Read more...
Ceylon Australian Sapphires by Ministry of Gems
Ceylon vs Australian Sapphires: Which Should You Choose?
Ceylon vs Australian sapphires compared honestly: colour, price, treatment and best use-cases — from a gem house that mines, cuts and FGAA-grades both. Read more...
Ceylon Sapphires by Ministry of Gems
The Unheated Ceylon Sapphire Buyer's Guide (Australia, 2026)
How to buy an unheated Ceylon sapphire: verifying treatment, the 4Cs, Ceylon vs Australian, honest pricing, and buying direct from a three-generation mine-to-market gem house. Read more...
Sapphire Price Guide_Ministry of Gems
How Much Does a Ceylon Sapphire Cost? A Guide to Price Per Carat
What a Ceylon sapphire really costs per carat, explained by our FGAA-qualified gemmologist — the honest AUD ranges and the four things that move the price. Read more...
Ministry of Gems
The Ministry Index — Edition I: Winter 2026
The inaugural Ministry Index: a monthly, data-led reading of the natural gemstone market from a mine-to-market house — vault statistics, the rise of the southern spectrum, and the unheated skew. Read more...
Ministry of Gems gemmologist grading loose Ceylon sapphires at The Gem Session in Dubai
How a Gemmologist Selects Sapphires: Inside The Gem Session
Watch a Ministry of Gems gemmologist select loose Ceylon sapphires in Dubai — grading each stone by colour, clarity, cut, heat, origin and certification. The six questions we ask of... Read more...
Gold at Ministry of Gems Factory
How Gold Jewellery Is Made: From Blue Wax to Solid Gold
Follow a Ministry of Gems ring through every stage of the lost wax casting process — from a blue wax pattern to solid gold — inside our Sri Lankan jewellery... Read more...
Ceylon Sapphire Mines_Ministry of Gems
Echoes from the Mine: our documentary series begins inside Ceylon Sapphire Mines
The official trailer for Echoes from the Mine is live — filmed 20 metres underground in our own Ceylon sapphire mines in Ratnapura, Sri Lanka. Read more...
Australian Opals by Ministry of Gems
Opal Types Explained: Black, Boulder, Crystal and White
In short: Opal is one word for four rather different gems, and body tone — the darkness of the canvas behind the play-of-colour — is what sorts them: black opal... Read more...
Engagement Ring_Ministry of Gems
Planning the Proposal: A Jeweller's Practical Guide
We occupy a privileged corner of the proposal economy: the co-conspirator's corner. Years of aiding and abetting have produced this practical playbook — everything the films skip between 'decided to... Read more...
Gem Packaging_Ministry of Gems
The Gemstone Gift Guide: The Right Stone for Every Occasion
Jewellery is the highest-stakes gift there is: unforgettable when right, unreturnable-feeling when wrong. After three generations of watching gifts land (and occasionally crash), here is the house playbook. Birthdays: the... Read more...
Wedding Rings by Ministry of Gems
Wedding Bands and Eternity Rings: Completing the Stack
The engagement ring gets the spotlight; the band does the marriage's daily work. Chosen well, the two read as one design — and the eternity ring that follows years later... Read more...
Ministry of Gems Gemstones
Gemstone Cuts and Shapes: Choosing the Right One for Your Stone
The cut is the one thing about a gemstone that humans control — and in coloured stones it does a job diamonds never ask of it: managing colour. Choose the... Read more...
Blue Sapphire Ring_Ministry of Gems
How Much Should You Spend on an Engagement Ring? An Honest Answer
Let us bury the myth first: the 'three months' salary' rule was invented by a diamond marketing department in the twentieth century. It is not tradition; it is advertising that... Read more...
Moonstone by Ministry of Gems
Moonstone: Adularescence and the Gem That Glows From Within
Some gems sparkle; moonstone breathes. Tilt a fine one and a soft blue light billows across its surface like moonlight through cloud — a phenomenon with the beautiful name adularescence,... Read more...
Red Spinel Ministry of Gems
Spinel: The Great Impostor That Fooled Every Crown in Europe
Set in the front of the British Imperial State Crown blazes the Black Prince's Ruby — five hundred years of royal history, war and legend. It is not a ruby.... Read more...
Citrines_Ministry of Gems
Citrine: November's Sunshine (and the Truth About Where It Comes From)
Citrine is the jewellery box's bottled sunshine — and the gem trade's most cheerful open secret. Here is the truth up front, because honesty is our house style: most citrine... Read more...
Garnets by Ministry of Gems
Garnet: January's Birthstone Is Not What You Think
Say 'garnet' and most people picture a dark red stone from a grandmother's brooch. That stone is real — and it is the least interesting member of one of gemmology's... Read more...
Wedding Band by Ministry of Gems
Men's Jewellery Metals and Stones: A Modern Field Guide
Men's fine jewellery has quietly shed its old rules. The signet revival led the charge; behind it came a broader question we now hear weekly at the bench: what actually... Read more...