Loose Gemstones

Faceted citrine, ametrine, kunzite, tourmaline and spessartine garnet, alongside cabochon star ruby and opal, every stone weighed to the hundredth of a carat.

Order Loose Gemstones by the Carat: Calibrated Sizes, Freeform Singles and Setting Ready Weights

A loose gemstone is a cut and polished stone sold on its own weight rather than inside a mounting, which is why each listing here states species, carat weight and millimetre dimensions before anything else. Buy a stone unmounted and the setting decision stays open, because the metal, the finger size and the jeweller are all still yours to choose. Astro Gallery of Gems weighs, measures and photographs every one of the 1836 pieces on this page individually, then prices each stone against the parcel of rough it was cut from.

What Each Loose Gemstone Costs Right Now

Carat weight sets the floor under a loose stone, and colour saturation, clarity and cutting quality then move the figure well above or below that floor. Astro Gallery prices every gemstone against the parcel it came out of, so two citrines of equal weight rarely carry the same ticket.

Carat Bands and What You Can Buy Inside Each One

Most buyers arrive holding either a weight or a budget, and those two starting points meet inside the same five bands. Each band below describes what a stone of that size actually does once it reaches a bench or a collection drawer.

Where the Rough Behind These Gemstones Comes From

Origin decides colour range and available size long before a stone ever reaches a wheel. Astro Gallery buys parcels at the mine and at the international gem shows, then has the material oriented so the finished stone keeps weight where the colour runs strongest.

Calibrated or Freeform: Two Ways to Shop a Loose Stone

Loose gemstones divide into two buying paths, and choosing the wrong one costs money at the bench rather than at checkout. Astro Gallery states millimetre dimensions beside carat weight on every listing so the path is clear before payment.

Four Checks Before You Order a Loose Stone

Four faults account for most disappointment with unmounted gem material, and each one shows in a listing photograph rather than requiring the stone in hand.

The Cutting and Clarity Words Used in These Listings

Settings, Gifting and the Birthstone Vocabulary

Two audiences buy unmounted stones and both are served by the same measurements. Commissioning buyers work from millimetre dimensions and depth, since a jeweller quoting a bezel or a claw head needs the outline and the pavilion depth before quoting labour. Gift buyers work from month and meaning instead, choosing garnet for January, amethyst for February, citrine for November and blue topaz or tanzanite for December, and a loose stone suits that purchase because the recipient chooses the setting afterwards.

Astro Gallery documents species, carat weight, dimensions and any treatment on every gemstone listing, and makes no health, healing or energetic claim about the material. Naming the chakra and birthstone vocabulary that buyers actually search costs nothing, while overstating what a stone does would cost the credibility that sixty five years of trading has produced.

Storing and Cleaning a Loose Gemstone

Unmounted stones scratch each other long before anything else damages them, so each gemstone travels and stores in its own folded gem paper rather than loose in a shared tray. Warm water, a drop of dish soap and a soft brush clean quartz, garnet and tourmaline safely, while opal, amber, kunzite and moonstone want a dry wipe and nothing more. Keep ultrasonic and steam cleaners away from every stone in this collection, because heat and vibration open existing fractures and drive water out of hydrated material. Amethyst, kunzite and rose quartz fade under sustained daylight, so a drawer serves them better than a windowsill.

Paying for a Stone and Getting It to Your Door

The figure shown on a gemstone listing is the figure charged, and secure checkout settles through Shop Pay, PayPal, Apple Pay, Google Pay or card. Before you commit, ask our specialists for the millimetre dimensions on a specific stone, a photograph against a white card, or a short clip of the gemstone turning under a single light, and they will send it rather than pointing you back at the listing.

Astro Gallery of Gems has invoiced loose gem material since 1961, and each order leaves with an itemised invoice naming species, carat weight and any disclosed treatment. Small faceted stones travel in gem papers inside a rigid box, larger cabochons and collector weights are foam blocked, and every parcel ships tracked and fully insured with customs paperwork completed before dispatch. Our returns policy and the guarantee published on about us apply to each of those steps.

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Eight Answers Before You Add a Gemstone to the Cart

Where Loose Stones Sit Beside the Species Rooms

This collection gathers the whole loose range, and the species rooms below narrow it when you already know what you want. Buyers chasing a colour move sideways through the species pages, while buyers chasing a finished piece cross into the mounted jewelry rooms instead.