Dioptase, a rare copper cyclosilicate. Its emerald to teal green comes from copper inside the crystal structure, and it grows as small prismatic crystals in oxidized copper deposits.

Where does it come from?

Renéville, Republic of the Congo. Renéville is the classic source for well-formed dioptase. Other deposits exist in Namibia, Kazakhstan, and Arizona.

Grade AA. Strong color saturation with well-defined crystal faces across the specimen.

Am I buying this exact piece?

Yes. This is the specimen photographed, measuring 1.38 x 0.68 x 0.64 inches and weighing 10.6 grams. No two dioptase pieces are alike.

No. The color is structural, produced by copper in the crystal lattice, so there is nothing to dye or heat.

How should I care for it?

Dioptase is soft at Mohs 5 and brittle. Dust it with a dry soft brush, keep it out of water and ultrasonic cleaners, and store it apart from harder stones.

What does a crystal grade (A, AA, or AAA) actually mean?

Crystal grades reflect visual quality within a single batch. Grade A is standard quality with typical inclusions. Grade AA shows stronger color saturation, cleaner surface, and tighter sizing. Grade AAA represents the top 10 to 15 percent of any batch: exceptional clarity, consistent color, and minimal surface variation. At Beyond Bohemian, grades are assessed by Paul Oliver at point of purchase.

Will I receive the exact piece shown, or one chosen from your stock?

For bulk listings sold by weight or piece count, you receive pieces from the same batch shown in the photos. Each piece is hand-selected at the time of packing. For unique specimens listed individually, you receive the exact piece photographed. The listing will specify which applies.

How do I know this crystal is ethically sourced?

Beyond Bohemian traces each stone as far up the supply chain as possible and is transparent when that tracing has limits. We work with small-scale operations and family-run suppliers wherever we can verify fair compensation. You can ask about any specific piece and we will tell you what we know and what we do not.

What is the return policy?

Beyond Bohemian accepts returns within 90 days of purchase. Items must be in original condition. Return shipping is the responsibility of the buyer. Contact us before returning so we can confirm eligibility and provide instructions.

What is Dioptase crystal?

Dioptase is one of the rarest green minerals in the world. Its color comes from copper, and it forms only where copper-rich water runs through rock long enough to leave crystal behind. The best pieces on the market today come from a narrow stretch of mine country in the Republic of the Congo.

Where is Dioptase crystal sourced from?

Our Dioptase crystal is sourced from Republic of the Congo. Each piece is hand-inspected and graded before it ships, with origin and supplier documented on our guide page.

What is Dioptase crystal traditionally used for?

Dioptase crystal is traditionally associated with: The green that stops you is real, not a dye. Our guide explains these associations in depth, without overclaiming what crystals can do.

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Dioptase Specimen | Republic of the Congo

$32.00

Only 1 left in stock

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You'll Get

The exact piece pictured

Polish

Hand-finished with natural jojoba oil to enhance the stone's natural color and texture

Size

1.38" L x 0.68" W x 0.64" H

Weight

10.6 Grams

Grade

AA

Origin

Renéville, Republic of the Congo

Sourcing model

Community Partnership

Sourced through a regional cooperative or community-based workshop. Processing and economic benefit stay local, which means more of the value reaches the people doing the work.

Read our Sourcing Standards →

In Short

This is an AA-grade Dioptase specimen from Reneville, Republic of the Congo. Dioptase is a rare copper cyclosilicate whose saturated teal-to-emerald color comes from copper itself, never dye. The exact piece pictured measures 1.38 x 0.68 x 0.64 inches at Mohs 5, completely natural. A favorite emotional healing stone for collectors.

What is Dioptase?

Dioptase Crystal Guide: meaning, origin & properties

The green that stops you is real, not a dye.

Copper silicate · CuSiO₃·H₂OSourced from Republic of the CongoTreatment: Never Treated

Learn what Dioptase is, where ours comes from, traditional associations across cultures, and how to identify a real specimen, in our complete Dioptase Crystal Guide.

Read our full Dioptase guide: meaning, origin & sourcing → Or browse all Dioptase pieces →

Crystal Family: Cyclosilicate
Mohs Hardness: 5
Origin: Renéville, Republic of the Congo
Beginner Friendly: Yes — with gentle handling
Treatment Awareness: None. Natural mineral color and crystal structure.

Dioptase is a rare copper cyclosilicate mineral best known for its extraordinary emerald-to-teal green color, produced by copper in its crystal structure. With a Mohs hardness of 5, it forms as well-defined hexagonal prismatic crystals, typically in oxidized zones of copper ore deposits. Despite its gemstone-quality color saturation, Dioptase is far too soft and brittle for use in jewelry, keeping it almost exclusively in the collector mineral market. Renéville in the Republic of the Congo is one of the world's premier Dioptase localities, producing specimens with exceptional color depth and crystal clarity that are sought globally by serious mineral collectors.

Dioptase is a Heart and Third Eye chakra stone, associated with deep emotional healing, forgiveness, and the expansion of love — both toward others and inward. Its intense green color reflects its alignment with the heart's energies, and it is used by practitioners to release grief, trauma, and emotional patterns that no longer serve. Among crystal workers, Dioptase is considered one of the most powerful healing stones for the heart, particularly during times of profound emotional release or transformation. Its copper content ties it energetically to Venus — the planet of love, beauty, and abundance — deepening its association with heart-centered work.

These are traditional associations drawn from historical practice. This stone is not a substitute for medical or mental health care.

Traditional Associations

A starting place for your own quiet practice.

Intention

Emotional HealingLoveHealingIntuition

Chakra

HeartThird Eye

Zodiac

VirgoScorpioSagittarius

Element

WaterEarth

Care & Use Sensitivity: Moderate-High. Dioptase has a Mohs hardness of 5 and perfect cleavage — it can chip or fracture with rough handling. Not suitable for pockets or high-contact use.

Best For

Display, meditation, altars, and emotional healing work. Handle with care — crystal terminations are delicate.

Care

Dust gently with a soft dry brush. Store protected from impact, ideally in a display case or on a stable surface away from edges.

Avoid

Rough handling, ultrasonic cleaners, steam, and prolonged direct sunlight (can fade color over time).

Cleansing

Moonlight, sound, or brief indirect sunlight. Avoid prolonged water exposure, which can affect surface luster.

Charging

Moonlight or sound bowls. Keep away from extended direct sunlight.

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Dioptase Specimen | Republic of the Congo

Community Partnership

Dioptase Crystal Guide: meaning, origin & properties

Traditional Associations

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