Chandramani Stone Price & Meaning: Complete Moonstone Guide India (2026)
“Chandramani (moonstone) is feldspar with a floating glow called adularescence. Learn how to tell real moonstone from opalite glass, how sheen and transparency decide its price in India, the customs linked with it, and how to care for it.”
Chandramani is the Indian name for moonstone, the feldspar gem with a soft, floating glow called adularescence that seems to move beneath the surface as you tilt it. It is one of the few gems where you pay mainly for the light effect rather than for rarity, and in Vedic tradition it is the usual substitute (upratna) for Pearl (Moti), at a fraction of the cost. Many buyers, though, end up with opalite glass instead. This guide explains the types of moonstone, how to tell real stones from opalite, how sheen and transparency decide the price, the customs attached to it, and how to care for it.
Quick answers: Real moonstone is feldspar (Mohs 6–6.5) whose sheen glides across the dome when you tilt it; opalite's glow stays still. A strong blue sheen on a clear body costs far more than a soft white sheen on a milky one, and a low price is not proof of a fake. At Ratna Gems, natural Indian moonstone is ₹150 per carat and natural Ceylon blue moonstone is ₹1,200 per carat, each with an independent laboratory report (October 2026) — see the Moonstone collection.
Chandramani (Moonstone) Quick Specifications
| Chemical Composition | Potassium Aluminium Silicate with exsolved Albite layers [KAlSi₃O₈ with NaAlSi₃O₈] |
| Mineral Family | Feldspar Group (Orthoclase Species) |
| Crystal System | Monoclinic / Triclinic |
| Optical Phenomenon | Adularescence (Billowy light scattering from sub-micron lamellae) |
| Mohs Hardness | 6.0 – 6.5 (Perfect cleavage on {001} and {010}) |
| Specific Gravity | 2.56 – 2.62 (Low density) |
| Refractive Index | 1.518 – 1.526 (Double Refractive, Birefringence 0.005–0.008) |
| Astrological Planet | Moon (Chandra) — traditionally the main substitute (upratna) for Pearl (Moti) |
What is Chandramani Stone (Moonstone)?
Chandramani (meaning "Moon Jewel" in Sanskrit) is the Indian name for Moonstone — a feldspar mineral famous for its ethereal, floating glow called adularescence. This billowy, bluish-white light appears to move just beneath the stone's surface as you tilt it, resembling moonlight on water.
The optical phenomenon occurs due to the stone's internal structure — alternating layers of orthoclase and albite feldspar that scatter light, creating the characteristic sheen.
Types of Moonstone & The Physics of Adularescence
The billowing, cloud-like sheen of moonstone, known as adularescence, comes from light scattering off microscopic, alternating layers of two feldspars, orthoclase and albite, which separated into thin stacked plates (lamellae) as the crystal cooled. The thickness of those layers decides the colour of the sheen:
- Blue sheen: produced by very thin layers, which scatter mostly short, blue wavelengths. This is the most valued sheen.
- White or silvery sheen: produced by thicker layers, which scatter all wavelengths and give a white glow.
Moonstone Varieties Comparison
| Type | Optical Effect | Body Characteristics | Value & Typical Use |
|---|---|---|---|
| Blue Sheen (Ceylon) | Vivid electric blue flash | Water-clear to transparent colourless body. Sourced from Meetiyagoda, Sri Lanka. | Highest: the most prized for fine jewellery, and preferred by buyers who follow tradition. |
| White Sheen | Soft silvery-white sheen | Translucent white, milky body. Sourced from India. | Moderate: an affordable choice, widely used in tradition. |
| Rainbow Moonstone | Multicoloured flash (labradorescence) | Translucent white base. Note: mineralogically white labradorite, not true orthoclase. | Moderate-High: popular for jewellery; buyers who follow tradition prefer true orthoclase moonstone. |
| Green Moonstone | Diffused white/green shimmer | Translucent pale green to yellow-green body. | Moderate: popular for everyday jewellery. |
| Peach / Grey | Soft white or silver sheen | Warm peach-orange or dark smoky grey body. | Lower: popular for fashion jewellery. |
A note on names: "Rainbow Moonstone" shows beautiful blue and green flashes, but it is plagioclase feldspar (labradorite). Buyers who follow Vedic tradition prefer true potassium-rich orthoclase Moonstone (Chandramani) with a blue or white sheen.
Chandramani Stone Price in India (2026)
Moonstone is priced by the quality of its sheen first and its body second. Milky material with a soft white sheen is common and inexpensive; a clear body with a strong, mobile blue sheen is uncommon and costs many times more.
Ratna Gems prices (October 2026):
- Natural Indian moonstone (white sheen), oval cabochons: ₹150 per carat — for example a 6.78 carat (7.45 ratti) stone for ₹1,017.
- Natural Ceylon blue moonstone (Sri Lanka, blue sheen), oval cabochons: ₹1,200 per carat — for example a 5.24 carat (5.76 ratti) stone for ₹6,288.
Every stone ships with a report from an independent laboratory. See all stones in stock in the Moonstone collection.
What Affects Moonstone Price?
- Adularescence Quality: Strong, vivid blue sheen commands highest prices — this is the primary value factor
- Body Transparency: Colorless, transparent body is most valuable; milky/cloudy bodies are less valued
- Sheen Coverage: Centered sheen visible from multiple angles is premium
- Size: Larger stones with good sheen cost more in total
- Origin: Sri Lankan Moonstone commands highest prices
- Clarity: Fewer inclusions = higher price
A low price is not evidence of a fake. This is worth stating plainly, because the opposite belief costs buyers more money than opalite ever has. Moonstone is a common feldspar, and milky white material with a soft sheen is genuinely abundant — it can sit at ₹150 per carat and still be entirely natural orthoclase with a laboratory report to prove it. What the price buys as it climbs is the sheen: how blue it is, how sharply it floats, how far it travels across the dome as you tilt the stone. A soft white sheen on a milky body is inexpensive because soft white sheen is common, not because the stone is false. Judge authenticity by the behaviour of the light — real adularescence moves and appears to sit beneath the surface, while opalite's glow is static and sits on it. Judge value separately, by how good that sheen is.
How to Identify Original Chandramani (Moonstone) & Spot Opalite
The most common imitation sold in the market is Opalite (also known as Sea Opal or Opalite Quartz), which is a man-made synthetic glass doped with metal oxides to create a milky, semi-translucent glow. Here are the professional gemological criteria to separate them:
- The Adularescence Movement Test: Under a single direct light source, tilt the stone. In a natural Moonstone, the sheen is highly directional and will glide or "billow" smoothly across the surface. In Opalite glass, the glow is completely static, uniform, and visible from all directions without movement.
- Centipede Tension Fractures: Under 10x magnification or a microscope, look for Moonstone's diagnostic inclusion: centipedes. These are tiny, perpendicular stress cracks that form along feldspar cleavage layers, resembling centipede legs. Opalite glass will never have centipedes; instead, it contains tiny, spherical gas bubbles and curved glass flow lines.
- Polariscope Testing (SR vs. DR): Place the stone between crossed polarizers in a polariscope. Opalite glass is isotropic (singly refractive, SR) and will remain dark during a full 360-degree rotation. Natural Moonstone is crystalline feldspar (doubly refractive, DR) and will show a distinct "blinking" (light-to-dark) pattern every 90 degrees.
A note on home tests: the cold-to-the-touch check is unreliable, because glass also feels cold at first. A report from an independent gemological laboratory is the most reliable way to confirm natural feldspar rather than glass. In India, well-known names include IGI, the Gemmological Institute of India (GII) and IIGJ Research & Laboratories (formerly GTL Jaipur). Every Ratna Gems moonstone ships with an independent laboratory report.
Chandramani in Vedic Astrology
In Vedic astrology (Jyotish), Chandramani is traditionally the substitute stone (upratna) for Pearl (Moti). Both are associated with the Moon (Chandra), which Jyotish links with the mind, the emotions and the mother. The customs below are described as customs; whether any stone suits you is for your own astrologer or Pandit ji to decide.
Who Usually Chooses Chandramani?
In Jyotish tradition, Chandramani is most often chosen by:
- People whose astrologer has suggested a Moon stone
- People who want a Moon stone that is harder and more durable than Pearl
Traditional Beliefs About Chandramani
In Jyotish tradition, Chandramani is linked with:
- The Moon's themes of calm, feeling and intuition
- Creativity and imagination
- The bond with one's mother, which the Moon represents in Jyotish
Traditional Wearing Customs for Chandramani (Moonstone)
| Usual Weight | About 1 Ratti for every 10 kg of body weight by custom. Since 1 Pukka Ratti equals 0.91 carat, someone who weighs 70 kg would choose about 7 Ratti, or 6.37 carats. Always ask for the weight in carats on the invoice and report. |
| Finger | Little finger (Kanishtha) of the working hand |
| Metal | Sterling silver, the metal of the Moon; gold is traditionally avoided |
| Customary Day | Monday evening, around moonrise, during Shukla Paksha (the waxing moon) |
| Associated Mantra | "Om Som Somaya Namah" or "Om Chandraya Namah" |
| Custom Before Wearing | Traditionally rinsed in raw milk, honey and Gangajal, sometimes with Tulsi leaves |
How to Evaluate Moonstone Quality
Unlike transparent gems graded by 4Cs, Moonstone quality depends primarily on its optical phenomenon:
1. Adularescence (the most important factor)
- Best: Vivid blue sheen, centered on dome, visible from multiple angles
- Good: Strong white/silver sheen, well-centered
- Average: Diffused sheen, off-center or weak
- Poor: Barely visible or no sheen
2. Body Transparency
- Best: Colorless and transparent (like glass)
- Good: Translucent with slight color
- Average: Semi-translucent, milky
- Lower: Opaque, cloudy, or dark body
3. Clarity
- Fewer visible inclusions = better quality
- Centipede-like inclusions are common in Moonstone
- Inclusions that obstruct sheen reduce value significantly
4. Cut Quality
- Must be cabochon cut to display adularescence
- Dome height affects sheen visibility
- Base must be parallel to internal layers
- Symmetrical, well-proportioned shape
Is moonstone treated? Usually not. The sheen is a structural effect of the microscopic feldspar layers, so heating, oiling or dyeing cannot improve it and none is standard practice. Two exceptions are worth knowing. Some material has a coating or foil applied to the back of the cabochon to fake a stronger flash, which shows as an unnaturally even, mirror-like glow that does not travel properly when you tilt the stone. And rainbow moonstone beads are occasionally dyed, which tends to show as concentrated colour at the drill hole. Both are reasons to ask for a laboratory report rather than rely on looks alone.
How to Care for Moonstone Jewelry
Moonstone requires delicate care compared to quartz, sapphires, or rubies. Because of its specific physical properties, it is susceptible to mechanical and chemical damage:
- Cleavage Planes: Moonstone has perfect cleavage in two directions ({001} and {010}). A sharp knock against a hard surface can cause it to split or crack along these cleavage lines. Handle it with extreme care and avoid wearing rings during physical labor or sports.
- Thermal Shock Sensitivity: Exposure to sudden temperature drops or rises can induce thermal shock, cracking the stone. Never expose it to steam cleaners or boiling water.
- Chemicals: Keep moonstone away from bleach, strong detergents and perfumes.
- No Ultrasonic Cleaning: The high-frequency vibrations of ultrasonic cleaners will propagate stress fractures along the cleavage planes, potentially shattering the stone. Clean only in lukewarm, soapy water using a soft brush.
- Safe Storage: With a hardness of 6–6.5, moonstone can be scratched by quartz dust or harder gems. Store your Moonstone pieces separately in soft velvet pouches.
Buying Checklist: Original Chandramani
Before purchasing, verify:
- ✓ Sheen MOVES when you tilt the stone (not static like Opalite)
- ✓ Sheen appears to float inside, not on surface
- ✓ No round air bubbles visible under magnification
- ✓ Price matches the sheen you can actually see — a strong, mobile blue sheen costs many times what a faint white one does
- ✓ An independent laboratory report
- ✓ Origin disclosed (Sri Lankan is premium)
- ✓ A written return policy (our guide to buying gemstones online safely explains every check)
For comprehensive gemstone evaluation guidance, see our complete gemstone buying guide.
Why Buy Chandramani from Ratna Gems?
Every Moonstone from Ratna Gems comes with:
- An Independent Lab Report: natural feldspar moonstone, not opalite glass, covered by our Authenticity Guarantee.
- Origin and Price Stated Plainly: Indian moonstone at ₹150 per carat and Ceylon blue moonstone at ₹1,200 per carat, with the weight in carats and ratti on every listing.
- 7-Day Returns: return an unused stone in its original condition within 7 days of delivery, as set out in our return policy.
Frequently Asked Questions
What is Chandramani stone?
Chandramani (meaning "Moon Jewel" in Sanskrit) is the traditional Indian name for moonstone, a feldspar showing adularescence, a floating, moonlight-like glow. In Vedic tradition it is the usual substitute (upratna) for Pearl, associated with the Moon (Chandra).
What is the price of a Chandramani stone in India?
It depends mainly on the sheen and the clarity of the body. At Ratna Gems, natural Indian moonstone with a white sheen is ₹150 per carat and natural Ceylon blue moonstone is ₹1,200 per carat, each with an independent laboratory report, so a 6–7 carat Indian stone costs about ₹900–₹1,100 (October 2026).
How can I tell the difference between real Moonstone and Opalite glass?
The primary test is adularescence movement: in a real Moonstone, the sheen moves and billows across the stone as you tilt it under a light source. In Opalite (man-made glass), the glow is static and uniform. Under 10x magnification, real Moonstone displays natural "centipede" inclusions (stress cracks), whereas Opalite has round gas bubbles and swirl marks.
What are the traditional customs for wearing Chandramani?
By tradition, Chandramani is set in a sterling silver ring and worn on the little finger (Kanishtha) of the working hand, first worn on a Monday evening around moonrise, after a rinse in Gangajal or raw milk. The mantra linked with it is "Om Som Somaya Namah".
What weight of Moonstone is usual?
A common custom is about 1 Ratti for every 10 kg of body weight, so about 7 Ratti for someone who weighs 70 kg. Using 1 Pukka Ratti = 0.91 carat, that is about 6.37 carats.
How should I care for and clean my Moonstone jewelry?
Moonstone is relatively soft (Mohs 6–6.5) and has perfect cleavage, making it prone to scratching and fracturing. Never clean it in an ultrasonic or steam cleaner, as these can cause it to shatter. Avoid harsh chemicals. Clean only in lukewarm, soapy water with a soft cloth, and store it separately from harder gems.
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