The short answer: Montana sapphires are a North American sapphire source known for a wide range of colours, from steely blues and greens to soft pinks and peaches, and many are heated to improve their colour. They suit buyers who like natural, subtle colour and a story of origin.
Sapphires are found in many places, and Montana in the United States is one of them. Montana stones tend to be smaller and often have an appealing, understated colour. Here is what to know before you choose one.
The colours
- Blue and teal: soft, silvery blues and bluish greens.
- Green: from pale mint to deeper green.
- Pink and peach: gentle, warm tones.
- Yellow and mixed colours: a wide spread within the same source.
Teal and parti colours
Some of the most loved Montana stones sit between blue and green, often called teal. Others show two or more colours in one stone, known as parti sapphires. These unusual tones suit people who want a ring nobody else has, and each stone is individual. See salt and pepper, teal and parti sapphires.
Treatment
Heating is common for sapphires from many sources, including Montana, because it can improve colour and clarity. Some Montana stones are sold unheated. Any report should state whether a stone is heated, and we explain what that means for you and tell you what is known about the stone you are considering. See heated vs unheated sapphires.
Size and cut
Montana sapphires are often smaller, so large stones are less common. Cutting varies, and good cutting makes a big difference to how colour and light show. We look at stones with you on video so you can judge the colour for yourself.
Settings
A solitaire lets the colour show, a halo adds sparkle, and a three stone ring can pair several Montana colours. Their softer colours suit rose and yellow gold well. Because the stones are often smaller, a halo or a cluster can build presence without losing the delicate colour.
Why choose Montana
- A gentle, natural palette.
- A story tied to a place, where the stone is documented.
- Variety, so the ring can feel individual.
Things to ask
- Is the stone heated or unheated?
- Does it come with an independent report?
- Can I see it in natural light on video?
Origin claims
An origin is only as reliable as the documentation behind it. We tell you what a report states and what is not known, and we do not make claims we cannot support.
Everyday wear
Sapphire is very hard, so Montana stones suit everyday wear. Clean them with warm soapy water, and have the setting checked regularly. Our guide to cleavage and chips explains how even hard stones can be damaged by a sharp knock.
Montana or other sources?
Montana stones tend to be softer in colour than the deep blues of some other sources. If you want a rich, saturated blue, other origins may suit you better. If you like a quiet, natural palette, Montana is worth a look.
See sapphire origins explained and best settings for sapphire, and browse diamonds for accent stones. Nothing is made until you approve the design in writing, and our standard making time is 5 to 6 weeks, which can vary with your location and how busy we are. Pieces start from £600.
Frequently asked questions
Are Montana sapphires valuable? Value depends on colour, clarity, size and treatment, and we help you compare.
Are they good for engagement rings? Yes, as sapphire is very durable.
Can I request a certain colour? Tell us, and we can look at what is available.
Are all Montana sapphires small? Many are, and larger stones are less common.
Can I order from overseas? Yes, by video consultation, with insured, tracked FedEx delivery.