Rainbow Moonstone: Meaning, Properties & Value

TOC

• 1. What Is Rainbow Moonstone?
• 1-1. Rainbow Moonstone Colors
• 1-2. Rainbow Moonstone Cuts
• 1-3. Rainbow Moonstone Sources
• 2. Rainbow Moonstone History
• 3. Rainbow Moonstone Meaning and Symbolism
• 4. Moonstone vs Rainbow Moonstone
• 5. Rainbow Moonstone Properties
• 6. Rainbow Moonstone Value and Price
• 7. How to Tell Real Rainbow Moonstone from a Fake
• 8. How to Care for Rainbow Moonstone
• 9. Rainbow Moonstone FAQ
• 9-1. What is rainbow moonstone?
• 9-2. What does rainbow moonstone symbolize?
• 9-3. Is rainbow moonstone real moonstone?
• 9-4. How can you tell real rainbow moonstone?
• 9-5. What is rainbow moonstone worth?
• 9-6. How do I care for rainbow moonstone?
• 10. Buying Rainbow Moonstone from KenKenGems

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Rainbow Moonstone

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What Is Rainbow Moonstone?

Rainbow moonstone is an exceptionally beautiful feldspar prized for its cool, luminous glow. Gemologically it is a variety of white labradorite (a plagioclase feldspar), though it is sold under the moonstone name because of its moon-like sheen. Its signature effect — adularescence — is the soft, billowy blue-white light that seems to float just beneath the surface. This happens because the stone is built from alternating microscopic layers of two feldspars; when light strikes these layers it scatters, producing the drifting glow that makes rainbow moonstone so sought-after.

Rainbow Moonstone Colors

Rainbow moonstone is typically translucent milky-white to pale gray with blue and lilac flashes; twirled in the light, it seems lit from within with a multi-dimensional shimmer. Rarer stones show star (asterism) or cat's-eye (chatoyancy) effects, and a faint yellow-bodied variety also exists.

Rainbow Moonstone Cuts

The cabochon is by far the most common cut, because a smooth, domed surface shows the adularescence at its best; classic shapes are oval and round, with cushion, pear, and marquise also popular. Faceted moonstone is less common — the stone is relatively soft and scratches easily — but skilled cutting can still capture its glow.

Rainbow Moonstone Sources

Moonstone is a commercial name for several white feldspars, and deposits occur worldwide. The rainbow variety, however, comes from only a few places — chiefly India, Sri Lanka, Madagascar, Tanzania, and Myanmar (Burma). Indian material is especially valued for its strong, multi-colored sheen at an accessible price.

Rainbow Moonstone Rough

Rainbow Moonstone History

Moonstone has been admired for thousands of years wherever its feldspars occur. Some sources credit the ancient Greeks and Romans with using it, but rainbow moonstone deposits are not found in Europe, so those early references are best treated as folklore; the stone's richest early history is in Asia, where deposits are plentiful.

The Western world truly fell for moonstone in the early 20th century, during the Art Nouveau movement, when its magical multicolored flashes caught the eyes of jewelers and quickly won over fashionable buyers.

Art Nouveau jewelry era

Rainbow Moonstone Meaning and Symbolism

Across many cultures, rainbow moonstone has been seen as a stone of love, intuition, and new beginnings. It was long considered a lovers' gem — people seeking affection wore moonstone brooches on the left side, close to the heart — and it was regarded as sacred because of its shifting, moon-like glow. In folklore its light was even said to wax and wane with the phases of the moon; this is a poetic tradition rather than a proven phenomenon.

• Traditionally associated with love, intuition, and fresh starts
• In crystal lore, believed to bring calm and emotional balance
• A long-standing symbol of the moon and feminine energy
• Often chosen simply for its enchanting blue adularescent glow

These are cultural and spiritual beliefs, not medical facts. Rainbow moonstone is not a medicine and does not diagnose, treat, cure, or prevent any illness. These are traditional beliefs, not medical claims.

Moonstone vs Rainbow Moonstone

"Moonstone" and "rainbow moonstone" are related but not identical. Classic moonstone is usually orthoclase feldspar with a blue or white sheen, while rainbow moonstone is a variety of white labradorite whose flashes can include blue, violet, and other colors. In other words, most rainbow moonstone is labradorite marketed under the moonstone name for its similar glow. Both are feldspars with comparable hardness and care needs, but knowing the difference helps you understand what you are buying and why colors and prices vary.

Rainbow Moonstone Properties

Here are the key gemological properties of rainbow moonstone at a glance:

Property	Detail
Mineral	Feldspar — variety of white labradorite (plagioclase)
Composition	Sodium-calcium aluminosilicate
Mohs hardness	6 – 6.5
Specific gravity	~2.56 – 2.62
Refractive index	~1.518 – 1.526
Cleavage	Perfect in two directions
Optical effect	Adularescence (blue/white sheen); sometimes asterism or chatoyancy
Transparency	Translucent to semi-transparent

With a hardness of 6–6.5 and perfect cleavage, rainbow moonstone is softer and more fragile than quartz, so it needs gentle handling and is best set in protective mountings for everyday wear.

Rainbow Moonstone Value and Price

Rainbow moonstone is generally affordable, with value driven by the strength and color of the adularescent sheen, body clarity, size, and cut. The most prized stones are clean and transparent with a vivid blue flash across a colorless body; milky or heavily included material costs much less. As a rough guide, cabochons and bead strands often run about USD $5–$50, while fine, transparent stones with a strong blue sheen and larger sizes command higher prices. Star or cat's-eye stones carry a premium. Treat any figure as general guidance rather than a fixed quote.

How to Tell Real Rainbow Moonstone from a Fake

Rainbow moonstone is popular in jewelry, so imitations exist — most often "opal glass," a cheap, silky-blue translucent glass that has nothing to do with real moonstone. Fortunately, a few checks help. Under direct light, opal glass tends to turn yellowish or orange and looks creamy blue in reflected light, while genuine moonstone keeps its body color and shows adularescence mainly in reflected light. Imitations often contain tiny gas bubbles and swirl lines, which natural stones do not. For an important purchase, a gemologist or lab report is the surest confirmation.

At KenKenGems, all of our rainbow moonstone is natural and untreated, and we describe every stone honestly so you know exactly what you are buying.

How to Care for Rainbow Moonstone

Because rainbow moonstone is relatively soft with perfect cleavage, gentle care keeps it looking its best.

• Clean with warm water, mild soap, and a soft cloth; avoid ultrasonic and steam cleaners
• Protect it from sharp knocks, which can cause it to split along a cleavage plane
• Keep it away from harsh chemicals, perfume, and hairspray
• Store it separately in a soft pouch to prevent scratches from harder gems
• Put moonstone jewelry on last, after cosmetics and fragrance

Rainbow Moonstone FAQ

Quick answers to the questions people most often ask about rainbow moonstone.

What is rainbow moonstone?

Rainbow moonstone is a variety of white labradorite feldspar known for its blue and lilac adularescent glow. It is sold under the moonstone name because of its moon-like sheen.

What does rainbow moonstone symbolize?

In crystal lore it is associated with love, intuition, and new beginnings and is seen as a stone of the moon. These are traditional beliefs, not medical claims.

Is rainbow moonstone real moonstone?

It is a feldspar closely related to moonstone, but technically it is white labradorite rather than the orthoclase of classic moonstone. Both share a similar glow.

How can you tell real rainbow moonstone?

Genuine stones keep their body color and show a sheen in reflected light, without the gas bubbles and swirl lines seen in "opal glass" imitations. A gemologist can confirm it.

What is rainbow moonstone worth?

It is generally affordable; value rises with a strong blue sheen, a clean transparent body, larger size, and effects such as a star or cat's-eye.

How do I care for rainbow moonstone?

Clean it with warm soapy water and a soft cloth, avoid ultrasonic cleaners and sharp knocks because it is soft with perfect cleavage, and store it apart from harder gems.

Buying Rainbow Moonstone from KenKenGems

When choosing rainbow moonstone, look for a strong, evenly spread blue sheen, a clean body, and a well-domed cabochon that shows the glow at its best. KenKenGems offers rainbow moonstone as cabochons, bead strands, and loose stones in a range of cuts, all natural and untreated and described honestly. Browse our rainbow moonstone collection to find beads and loose stones for your next jewelry project.

Wide variety of our rainbow moonstone collection