Hisui — The Complete Guide to Japanese Jadeite

What is Hisui — Jadeite vs Nephrite

Hisui (翡翠) is the Japanese word for jade — the green, white, or purple gemstone that East Asian civilizations have honored as the king of stones. In English it is called Jade or Jadeite; in French, Jadéite. What most people do not realize is that two mineralogically distinct stones are called "jade." The first step in understanding hisui is to separate these two.

Jadeite — the Hard Jade

Jadeite belongs to the pyroxene group with the composition NaAlSi₂O₆ (sodium aluminum silicate). Mohs hardness 6.5–7, specific gravity 3.30–3.38. Trace chromium produces vivid green, iron produces pale green, and a combination of manganese and iron produces purple. Translucent specimens with internal luminosity are called Lao Kang (老坑, "old mine") and are the highest grade. Japan's 2016 designation as the National Stone refers to this hard jade, as does the global gem trade dominated by Kachin State, Myanmar.

Nephrite — the Soft Jade

Nephrite belongs to the amphibole group with the composition Ca₂(Mg,Fe)₅Si₈O₂₂(OH)₂ — a complex calcium-magnesium-iron silicate. Mohs hardness 6.0–6.5, specific gravity around 2.95. Its colors center on green, white, black, and yellow. Most of what was called "jade" in ancient China was actually nephrite, with Hotan in Xinjiang as the sacred source. After Myanmar jadeite reached China via Yunnan in the Qing dynasty, vivid-green jadeite gradually displaced nephrite as the supreme grade.

The Origin of the Characters 翡翠

The character 翡 denotes the male kingfisher with red plumage; 翠 denotes the female with blue plumage. Ancient people applied this name to the stone because "moving green" was what kingfisher and jade shared — both shift between green and blue depending on the angle of light. Yet long before these characters arrived in Japan from China, the Japanese were already working this stone. Whatever they once called it has been lost to time.

The Seven Types of Jadeite

Jade is famous for its deep green, but trace elements produce a wide spectrum. Jadeite is broadly classified into seven color categories, each with its own name, rarity, and value tier. From the supreme Lao Kang to the rare lavender and black types, this is the complete color world of jadeite.

The Seven Powers of Jadeite

Jade is often called "the stone of virtue and protection," but its energies are not singular. In Shinto, it is the stone the gods first picked up; in East Asia, it mirrors the virtue of emperors and noble men; in Mesoamerica, it is the stone of life and rebirth. Here are the seven principal powers told and retold across cultures.

• 1. Sacred Protection — Protection Divine
  The central energy of jadeite. From antiquity it hung as a magatama before the heart, warding the bearer from misfortune and malign influence. In Shinto, jadeite is a yorishiro — a vessel for divine spirit — and its green carries the force of the earth and of life. Against accident, calamity, or human hostility, it builds a quiet, immovable circle of protection. Wear it when moving to new ground, taking on a great undertaking, or watching over the safety of family.
• 2. Virtue and Dignity — La Vertu du Sage
  The Confucian classic Liji states, "The noble man compares his virtue to jade." Jadeite reflects and cultivates the qualities of high character — integrity, fairness, compassion, restraint. It supports those who seek not status or power but the inner dignity that emanates from the self. For those who lead organizations, who would be trusted, who refuse to be moved by self-interest. With wear, a quiet weight settles into one's words and bearing.
• 3. Wisdom and Decision — La Sagesse
  Jadeite holds the highest rank in the wisdom axis. It grants insight to see past emotion into the essence of things, and the steady judgment to hold firm in decisive moments. When forced into a hard choice, when drowning in information, when the long view is slipping, place jadeite close — the mind settles, and the outline of the answer sharpens. A stone to keep beside those facing business judgment, life pivots, the crossroads.
• 4. Healing and Harmony — La Guérison
  Jadeite's green frequency corresponds to the heart chakra and deeply unwinds tension in body and mind. In Eastern medicine it is said to support the kidney and liver meridians and nourish the life force. In times of overwork, chronic fatigue, taut emotion, or shallow sleep, holding jadeite to the skin and breathing deep brings a sense of constraint dissolving. Not violent in action — slow as the earth itself, sustained.
• 5. Abundance and Prosperity — La Prospérité
  Jadeite holds the highest rank in the abundance axis. Across East Asia it has long been an emblem of commercial success, family flourishing, and bountiful harvest — worn by the prosperous and displayed in their homes. Yet jadeite's wealth is not the lottery ticket; it is the lineage-long prosperity built on virtue. A power that ripens steady effort into harvest and circulates wealth honorably. Fitting also as a high-format gift for those building a business or stabilizing a household line.
• 6. Rebirth and Lineage — La Renaissance
  Jadeite also tops the rebirth axis. The Maya placed jade in the mouths of the dead to seek rebirth in the next world; the Japanese passed magatama down across generations. It symbolizes the transformation that ends what was and crosses into the next phase, and the bond carried from ancestor to descendant. For pivots in life, generational transitions, long relationships ready to reshape. Jadeite does not "cut off the past" — it is the stone of being reborn while carrying the past forward.
• 7. Spirituality and Divine Connection — La Connexion Divine
  Jadeite also holds the highest rank in spirituality. In Shinto, it is the stone the gods first picked up — the vessel in which divine spirit dwells. Placed in meditation or prayer, distractions quiet and the sense of connection to something beyond the self deepens. Among the most fitting stones to carry to ancestor rites, shrine visits, and seasonal observances.

Jade Across Cultures

Jade occurs in only a handful of places on Earth — yet independent civilizations, with no contact between them, simultaneously identified it as a stone of the gods. Japan, China, Mesoamerica, Aotearoa. Each culture's reading of the stone.

Itoigawa — The Oldest Jade Workshop

Nearly all the jade used in ancient Japan came from a single watershed. The Hime River and the Kotaki River, flowing today near the city of Itoigawa in Niigata Prefecture. Even now, after typhoons, jadeite stones tumble down from the mountains and wash up on the beaches of the Sea of Japan. The locals still go to gather them.

2016 — National Stone of Japan

On September 24, 2016, at the general meeting of the Mineralogical Society of Japan, jadeite was formally designated the National Stone of Japan. The selection, held to mark the Society's sixtieth anniversary, considered several minerals. Jadeite was chosen for three reasons.

1. Itoigawa as the Source

The city of Itoigawa in Niigata Prefecture is one of the world's foremost jadeite producers, yielding fine raw stones from the Hime and Kotaki watersheds. In the unique geology of the Fossa Magna, jadeite was generated over 500 million years ago by high-pressure, low-temperature metamorphism. Itoigawa jadeite centers on white, pale green, and bluish green — possessing a delicate, settled tone distinct from Myanmar material.

2. The World's Oldest Jade Culture

Japan has the oldest jade craft on record, shaped into large beads and magatama from the Jōmon era. The Itoigawa tradition, beginning 5,500 years ago in the Middle Jōmon, predates Olmec jade craft in Mesoamerica (which begins ~3,500 years ago) by roughly two millennia. The civilization that first worked jade, in all probability, was the Jōmon people of Itoigawa.

3. A Stone of National Self-Definition

Said to be the material of the Yasakani no Magatama, jadeite is woven into the foundation of Japan's spiritual culture. The founding myths of the Kojiki and Nihon Shoki, Shinto ritual, imperial enthronement — jadeite is not merely a mineral but a stone embedded in Japan's definition of itself. A stone that satisfies the criteria of science, occurrence, history, and culture all at once.

Yasakani no Magatama — The Sacred Jewel

The imperial mythology of Japan turns around three sacred treasures. The grandson of Amaterasu descended to the earthly realm bearing them, the Kojiki tells us. The Three Sacred Treasures (三種の神器). Mirror, sword, jewel. The one traditionally said to be of jadeite is the Yasakani no Magatama (八尺瓊勾玉).

In the Kojiki and the Nihon Shoki

The Kojiki (712) and Nihon Shoki (720) describe the moment when Amaterasu hides in the heavenly rock cave and the world is plunged into darkness, and the gods assemble offerings to coax her out. Five hundred (ihotsu) jadeite magatama strung on a single cord were hung on a sakaki tree. Along with the mirror, the strands of jade stood before the cave — and it was jadeite that helped to draw the sun god back.

Identifying the Yasakani no Magatama as Jadeite

The character 瓊 in "Yasakani" refers, in classical usage, to a red gemstone or simply to a beautiful jewel. While the mirror is enshrined at Ise (Yata no Kagami) and the sword at Atsuta (Kusanagi no Tsurugi), the magatama resides within the imperial palace. Almost no one has seen it; archaeology and Shinto scholarship hold that it is a jadeite magatama. Of the three regalia, only the jewel stays always close to the body of the sovereign.

The Imperial Enthronement

In the enthronement ceremony Kenji-tō Shōkei no Gi (剣璽等承継の儀), the sword and the jewel are handed to the new emperor. The mirror is at Ise and the sword at Atsuta — the palace holds katashiro (proxy copies) — but the jewel in the palace is, by tradition, the true article. The jadeite magatama is the physical core of the imperial person. No emperor has acceded without it, even today.

Spotting Jadeite Fakes — Five Checks

The jadeite market is, regrettably, awash in treated and counterfeit stones. Trade terminology classifies them: A-jade (untreated natural), B-jade (resin-impregnated), C-jade (dyed), and B+C-jade (both). Beyond these, glass, plastic, and nephrite are sometimes passed off as jadeite. Five checks for catching the fakes.

• Dyed jadeite (C-jade)
  Low-grade colorless or pale-green jadeite dyed green or purple. Test: held to a strong light, the dye pools along grain boundaries as visible color streaks. Wiped with a white cloth, the color may transfer. Salt water leaches the dye — which is why traditional salt-purification methods must be avoided for dyed stones.
• Resin-impregnated (B-jade)
  Poor-quality jadeite acid-bleached to remove inclusions, then injected with epoxy resin in the resulting voids. Looks improved at first, but the resin yellows over time. Test: under UV (blacklight), the resin areas may fluoresce bluish-white. When struck, the sound is duller than natural jadeite.
• Glass and Plastic
  The most blatant counterfeits. Glass has a specific gravity of about 2.5, plastic is lighter still — both clearly less than jadeite's 3.3. Test: heft and coolness in the palm are wrong. Under a 10x loupe, glass shows gas bubbles, plastic shows uniform striations. Real jadeite shows the interlocking fibrous crystal structure.
• Nephrite confused for Jadeite
  Nephrite (soft jade) sold as "jade." Mineralogically distinct, though visually similar. Test: nephrite has a specific gravity of around 2.95, clearly lighter than jadeite. Refractive indices differ as well (nephrite 1.61, jadeite 1.66). Chinese "jade" is often nephrite — not a fake in itself, but it must be distinguished from jewelry-grade jadeite.
• Reading the Certificate
  Always check the certificate from an accredited gem laboratory (GIA, CGL Tokyo, DGGL, AGT, and the like). A proper certificate specifies "natural jadeite (A-jade)" or notes the treatments. If only "Jadeite" appears with no further qualification, treatment is possible. Certificates of unknown provenance, or "certificates" self-issued by sellers, cannot be trusted. When in doubt, submit to an accredited laboratory yourself.

Purifying Jadeite

Untreated natural jadeite (A-jade), with Mohs hardness 6.5–7 and exceptional toughness, accepts almost the full traditional repertoire of purification — salt, water, even brief sunlight. Dyed jadeite (B-jade, C-jade) must avoid salt and strong water, which leach the dye.

Safe Methods for A-Jade

Running water: tap water or spring water for one to two minutes. Basic and powerful.
Moonlight: a night outdoors or on a windowsill under the full moon. Jadeite has a particular affinity for the feminine principle of the moon.
Quartz cluster: place on a cluster overnight.
White sage: pass through the smoke. Shinto salt or sake is also fine for A-jade.
Shrine water: a brief rinse at the ablution pavilion (chōzuya) of a Shinto shrine settles the stone deeply.

Daily Care

After wear, wipe softly with a cloth to remove sweat and skin oils. For heavier soiling, briefly rinse in lukewarm water with a mild neutral detergent, then dry. Avoid ultrasonic and steam cleaners — natural stones with microscopic interstices can be damaged. For long-term storage, use a soft cloth pouch, kept away from harder gemstones. The single best care for jadeite is to wear it against the skin daily — the natural oils deepen the luster and the stone matures over the years.

Stone Artistry HISUI's Jadeite Line

Stone Artistry HISUI — the artistry of jade — is the atelier of a single witch in the southern countryside of Miyagi, Japan. Dark-romantic crystal bracelets and the Noctéline Oracle deck are crafted there. The brand name HISUI declares the inheritance of a tradition five thousand years long, in which the people of this archipelago have treated stones as living — as vessels for meaning.

A Line Centered on Jadeite

Within the atelier's bracelets, one line is built around jadeite. A protection bracelet incorporating small beads of Itoigawa jadeite; a spirituality bracelet centered on lavender jadeite; a purification bracelet pairing white jadeite with other white stones. All are strung on nights of the full moon and cleansed at a Shinto shrine before shipping.

Tied to the Forthcoming Miko Oracle

The forthcoming Miko Oracle — an oracle deck centered on the twenty-two principal Shinto deities — is the most direct expression of the jadeite lineage. Amaterasu, Tsukuyomi, Susanoo, and the eight million kami. The voices of the gods who first picked up jadeite in the myths, rewoven onto twenty-two cards. The jadeite bracelet and the Miko Oracle, taken together, form the core of HISUI.

Jadeite × Other Stones

As the foundational stone of virtue and protection, jadeite pairs remarkably well with a wide range of stones. Four pairings of particular meaning.

Frequently Asked Questions