Nephrite Jade Grading for Export: What Chinese and Gulf Buyers Actually Require

A 42-kilo boulder sat on the floor of a Guangzhou trader's office last spring. Deep spinach green, waxy skin, decent translucency when we shone a torch behind a cut face. The buyer offered us roughly a third of what our sorter in Skardu had valued it at. And he was right, we were wrong. That single meeting reset how GBX grades every piece we now ship out of Gilgit-Baltistan.

I want to write this one plainly, because there's a lot of nonsense floating around about Pakistani jade. Some of it is written by people who've never seen a rough boulder in daylight. So here's how the buyers who actually cut cheques — Guangzhou, Jieyang, Sihui, and increasingly Dubai and Sharjah — think about our material.

What the Chinese trade is actually grading for

Chinese buyers don't grade nephrite on a single scale. They stack four things in their head, quickly, usually within thirty seconds of seeing a piece.

First, colour. Not just "green" but the specific tone. The premium sits with even, saturated spinach green (菠菜绿) and the deeper "old mountain" green tones. Yellowish-green from Skardu's Shigar valley material does move, but at a discount unless the translucency is exceptional. Grey-green and blackish nephrite from the Bunji zone has its own market — carvers in Sihui use it for Buddha figures and landscape carvings — but you're pricing it at maybe 40 to 60% of top spinach.

Second, texture. They'll rub a wet finger across a cut window and feel for grain. Fine, felted tremolite fibres under 5 microns give that "mutton fat" density even in green material. Coarse crystalline texture, or any visible granular structure, drops the grade fast. Our better Skardu material tests in the 3-4 micron range on thin-section, which is competitive with Qinghai but honestly still a step below Hetian's best.

Third, translucency. They'll use a small LED torch, press it flat against the stone, and look for the glow depth. 3 to 5 mm of glow penetration is workable commercial grade. Above 8 mm you're into carving-grade territory. The very best Skardu boulders we've pulled hit 10-12 mm, but that's maybe one piece in forty.

Fourth, defects. Fractures (裂), black spots (黑点), white cotton (棉), and any calcite or serpentine inclusions. A single hairline crack across a 20-kilo boulder can knock 70% off the price. This is where new sellers from Pakistan get slaughtered — they price the boulder by weight and forget the buyer is pricing the usable yield after cutting around defects.

What the Gulf trade wants (and it's not the same thing)

Dubai and Sharjah buyers have grown as a market for us over the last three years, but they're buying for a different end use. Less carving, more architectural and decorative slab work, plus some jewellery-grade cabochon material moving through into Iranian and Turkish workshops.

Gulf buyers care more about:

• Block size and soundness. They want boulders they can slab into 40x40 cm or 60x60 cm tiles without hitting fractures. A clean 80-kilo boulder of even mid-grade green is worth more to them than a spectacular 15-kilo carving piece.
• Colour consistency across a slab. Patchy colour that a Chinese carver would work around is a rejection for a Gulf slab buyer.
• Polish response. They test small cut samples for how the surface takes a mirror polish. Nephrite with higher actinolite content sometimes polishes with a slight orange-peel effect — fine for carving, not fine for a hotel lobby wall in Doha.

Honestly, I used to think Gulf buyers were less technical than the Chinese. That was wrong. They're technical about different things. A Sharjah buyer walked one of our Bunji stockpiles last November with a Mitutoyo hardness pick and a portable spectrophotometer. He knew exactly what he was doing.

The grading system we now use before anything leaves the yard

After the Guangzhou episode I mentioned, we built an internal five-tier system. Not because it's revolutionary — it isn't — but because a consistent internal grade means fewer arguments at the buyer's warehouse and fewer disputed shipments.

A1 — Carving grade, premium. Even spinach or deeper green, translucency above 8 mm, no visible defects on cut windows, fine texture. Maybe 2-3% of what comes out of our Skardu operations.

A2 — Carving grade, standard. Good colour, some minor cotton or one small healed fracture, translucency 5-8 mm. Around 8-10% of production.

B — Commercial carving and jewellery. Workable colour with some patchiness, translucency 3-5 mm, may need cutting around defects. The workhorse grade, roughly 30% of output.

C — Slab and architectural. Sound blocks over 30 kg, colour secondary to soundness. Big share of the Gulf trade.

D — Utility and tumbling. Small pieces, heavily fractured material, off-colour. Sold by the tonne, mostly domestic and into Xinjiang cross-border trade.

We photograph every A1 and A2 piece under standardised lighting (5500K, fixed distance) with a scale bar and torch-through shot. Buyers in Guangzhou expect this now. If you send WhatsApp photos taken in Karakoram afternoon sun, half your prices will be wrong before the buyer even lands in Islamabad.

A note on export logistics

Jade exports from Gilgit-Baltistan move under the Mines and Minerals Department's royalty regime — the current schedule on nephrite is manageable, and the lease-holder is the party of record for export documentation. Physical movement is Skardu or Gilgit down the Karakoram Highway to Islamabad dry port, then either sea freight from Karachi or, increasingly for higher-value A1/A2 parcels, air freight direct from Islamabad. Overland into Kashgar via Khunjerab is possible in season (May to October, roughly) but the paperwork on the Chinese side has tightened considerably since 2023 and most of our serious Chinese buyers now prefer we ship into Guangzhou by sea.

One thing I'd tell any new buyer looking at Pakistani nephrite for the first time: come to Skardu. Look at the stockpile in daylight. Cut a window on the boulder you're interested in, right there in the yard. We keep a diamond saw on site for exactly this reason. The buyers who've done well out of our material are the ones who spent three days in Baltistan and didn't try to grade jade over email.

What questions come up most on your side — colour standards, or the fracture-yield problem?