Curated Stones

Singles, pairs, and sets, ready to buy

Our curated collection of coloured gemstones for trade. Each stone individually selected, professionally photographed, certified, and documented under our Five-Level Traceability Standard.

Singles, pairs, sets|360° photography and certificates|Documented provenance

Why our collection

Stones we'd buy ourselves.

When stones don't meet tolerance, entire dials are rejected. Production delays cost time and reputation.

Standard gemstone suppliers work in tenths of millimetres. Watch manufacturing works in hundredths. That gap creates risk.

You need a supplier who understands that ±0.02mm isn't optional, it's a requirement. Someone who's been solving this problem in dedicated partnership with Swiss watchmakers since 1987.

Not a marketplace. A collection.

What we offer

Singles, pairs, and sets

Lane 3 covers three product groupings: individual stones for one-off pieces, matched pairs for symmetrical settings, and ready-to-buy sets for designs in progress. All photographed, certified, and available now.

Singles

Individual coloured gemstones, each fully specified and photographed. For one-off pieces, signature stones, or building bespoke designs around a hero gem.

Pairs

Matched pairs of stones for earrings, cufflinks, and symmetrical settings. Pre-matched for colour, cut, and size so you don’t have to sort yourself.

Sets

Ready-to-buy matched sets of three or more stones. For designs in progress that need a coordinated parcel without a bespoke commission.

Browse by stone

Stone types

Ruby

Many origins, heated and unheated

Sapphire

Blue, pink, fancy colours

Emerald

Colombian, Zambian, minor oil treatment

Diamond

Tanzanite, tsavorite, alexandrite, aquamarine, tourmaline

Other stones

Vivid range from green to mandarin to rhodolite

The process

How it works

01

Browse the collection

Filter by stone type, colour, size, treatment, or price. Each stone has full photography, 360° video, and specifications.

02

Register for trade access

Verified trade buyers see trade pricing, place orders directly, and request viewings of specific stones.

03

View or buy

Order online for shipping worldwide, or request to view stones at our Geneva, Paris, or London office before purchase.

Traceability and RJC

Documented provenance

Every stone, pair, and set in our collection comes with provenance documented under our Five-Level Traceability Standard. From mine partnerships through trusted dealer relationships, we record where each stone came from and how it reached us.

Major Trading is RJC-certified, supporting your compliance reporting at every level.

For trade buyers

Register once, browse always

Trade registration unlocks trade pricing, direct ordering, viewing requests, and access to stones not yet listed publicly. Verification typically takes one to two business days.

Trade access includes

  • Trade pricing on every stone, pair, and set
  • Direct ordering and shipping
  • Viewing requests at any office
  • Curated selection on request
Register for trade access

Start with the collection

Browse, register, or speak with our team about a specific brief. 

Or contact our offices: Geneva · Paris · London