White jade: meaning, types and value

White jade is two different stones. In the Chinese tradition it is white nephrite, bai yu (白玉), whose finest grade is mutton fat jade. In the jadeite trade it is white or colorless jadeite. GIA lists white among the natural colors of both minerals, so “white jade” on a label does not tell you which one you have, and the two differ in look, meaning and value.

	White nephrite	White jadeite
Polished luster	Soft and greasy	Brighter and glassy
At its best	Mutton fat: a warm, creamy white with fine texture	Colorless “ice” jade: fine texture and high translucency
At its most ordinary	Stark white with coarse, visible structure	Opaque, milky white
Refractive index	1.606 to 1.632	1.666 to 1.680
Specific gravity	2.95	3.34
Mohs hardness	6 to 6.5	6.5 to 7

The numbers are from GIA. The wider comparison is on the page about jadeite vs nephrite.

White nephrite

Nephrite gets its color from iron, and white nephrite is the nearly iron-free form of the mineral tremolite. Studies in GIA’s journal Gems & Gemology (2017, 2019) report 0.07 to 1.09 percent iron oxide by weight in white nephrite, against 0.12 to 4.93 percent in green nephrite.

In the Chinese classification, bai yu is white nephrite and qing bai yu (青白玉) is white with a slight bluish, greenish or grayish tint. The line is not sharp. Sellers accept that bai yu may carry a faint gray or green-yellow cast, or a little brown at one edge. White nephrite with areas of brown running through or beside the white is called tang bai (糖白), “sugar-white”.

The top grade is mutton fat jade, yang zhi yu (羊脂玉). Dealers describe it as a soft, warm white, not a stark paper white, with a greasy luster like congealed fat. It looks opaque to the eye but lets light through under a flashlight. It has its own page: mutton fat jade.

Source changes the look. Material from Hetian in Xinjiang tends to a warm, creamy white with a strong oily luster and is seldom the whitest. Russian material is usually whiter. Dealers say no single source gives the best whiteness, the finest texture and the best luster together.

One label needs care. Dealers explain that under China’s current national standard, “Hetian jade” on a certificate means tremolite jade of any origin, including Russia, Qinghai and Korea. The name is no evidence that a piece came from Hetian. More on the mineral itself is under nephrite jade.

White and green nephrite also come from different mines. Light-colored nephrite forms mainly in deposits hosted by dolomite marble, while green nephrite is tied to serpentinite, a split described in a GIA report on nephrite from multiple sources and in the mineralogical literature.

White jadeite

White is the default color of jadeite. Pure jadeite is colorless, and the Gems & Gemology study of Burmese jade by Richard Hughes and co-authors explains that most of it looks white because light scatters off its grain boundaries and tiny fractures. Dealers put it this way: coarse, loosely packed grains give an opaque white stone, and fine, tightly packed grains give a colorless, translucent one.

That difference in grain is the whole story of its value. Opaque, milky white jadeite is entry-level material. Colorless jadeite with fine texture and high translucency, sold as “ice” jade, is a different matter and can be very valuable with no color at all.

White jadeite also carries other colors. Moss-in-snow is the trade name for translucent white jadeite with bright green veins, patches or spots, and a small green vein can make a whole white cabochon look green when it is lit from behind.

What white jade means

According to GIA, the Chinese associate jade with clarity of mind and purity of spirit and regard it as pure and enduring. A pierced jade disc, the bi, is a symbol of heaven. White jade carries these meanings most directly, and purity is the meaning most often attached to it.

In the Confucian tradition jade was compared to the virtues of a gentleman, and Chinese writers hold that white nephrite arriving from Hetian matched that ideal so well that it became the standard for jade. Jadeite reached China from Burma only in the late 1700s, so antique Chinese white jade is nephrite.

These are cultural meanings, not properties of the stone.

Is white jade valuable?

No single price exists for white jade, and the range is wide.

White nephrite. Mutton fat is the most valuable nephrite color. Below that grade, whiter is not automatically better. Dealers price white nephrite in this order: fineness (no grain visible even under a strong light), oily luster, freedom from cracks and spots, and only then whiteness. A very white piece with coarse, visible structure is ordinary, and stark whites lack the luster that defines the top grade. Size helps less than you might expect: GIA notes that for nephrite, larger size does not raise value dramatically.

White jadeite. White is the low end of jadeite unless the stone is translucent. The value sits in texture and translucency, not in the whiteness.

How white compares with the other colors is covered in jade value by color.

How to identify white jade

Start with what you can observe, and treat each point as a hint:

• Luster. Polished white nephrite has a soft, greasy shine. White jadeite is brighter and glassy.
• Heft. Jadeite is about 13 percent denser than nephrite, so it feels slightly heavier at the same size. Without a second piece to compare, this tells you little.
• Texture under a flashlight. Fine nephrite shows no grain even under a strong light, and good material lets some light through.

Then consider the stand-ins. White jade is imitated by marble, quartzite and glass:

• White marble is sold under names such as “Afghan jade”. It is often banded and soft, at a hardness of about 3, so a steel blade scratches it. Scratching is destructive and is not something to try on a finished piece.
• Quartzite looks granular under magnification, has a glassy rather than greasy luster, and is lighter, with a density of about 2.65.

Dealers themselves say the popular home tests for white jade, such as the sound when tapped, a drop of water, or weighing in a glass of water, are not reliable in a beginner’s hands. Home checks narrow things down. A gemological laboratory report settles what a white stone is, and a basic identification is inexpensive. The full set of checks is under how to tell if jade is real.

Does white jade turn yellow?

GIA describes jade as stable to light, and the body color of fine untreated jade does not change with ordinary wear. What does build up is skin oil and dirt on the surface, and dealers warn that coarse, milky white jadeite can slowly turn yellowish or dull. The details are in does jade change color.