LAB-GROWN DIAMONDS · A SUPPLY CHAIN PARTNER IN CHINA

Lab-grown diamonds. Sourced for your business.

Fancy shapes, colored melee, large colored diamonds and 18K gold customization for jewelry stores, studios and growing brands worldwide. Start with one trial stone.

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  • Broad choice
  • Quick response
  • Start with one
  • Consistent quality
Colored lab-grown diamond selection
LIENGEM / COLOR & FORMExplore this direction

THE WAY WE WORK

A practical partner for your next step.

Broad choice

Fancy shapes, colored melee and colored center stones, connected in one sourcing conversation.

Quick response

Direct sourcing communication: clarify what you need, review current options, and agree separate arrangements for available stones and custom projects.

Start with one diamond

A single loose diamond can be the beginning. Matching sets and jewelry projects are discussed individually.

Consistent quality

Use actual-stone images, matching requirements and applicable individual reports to clarify the selection before confirming an order.

LIENGEM · Working arrangements

From one trial stone to a clear working relationship.

Separate response, quotation and dispatch arrangements make the first order easier to plan.

Fast, direct communication

Tell us your country, time zone and preferred contact channel so we can arrange a convenient reply.

Current options after a clear brief

We clarify loose-stone, matching or 18K gold requirements before preparing available options and a quotation. Special cuts and custom projects have separately confirmed timelines.

Dispatch agreed for the selected goods

We confirm availability, readiness and the dispatch date in the order. Custom work, matching and special cuts follow the agreed schedule; transit time depends on the destination and carrier.

Start with one loose diamond

Experience the communication, selection and delivery process before planning regular replenishment. Sets and custom projects have their own agreed order scope.

CLEAR SOURCING · A PRACTICAL START

A clearer basis for your first order.

Clarify the images, matching needs and order confirmation before moving forward.

01

See the actual selection

Request actual photos of current options and additional views on video where available.

02

Confirm matching and reports

Share pairing, color-matching and individual report needs, and check them against the selected stones.

03

Agree the practical details

Confirm the goods list, payment, delivery and after-sales contact before ordering.

Diamond selection and supply scene
Selection and product presentation

IGI

Individual reports, confirmed per stone.

Tell us at the start if you require an IGI report. Confirm the report number and corresponding stone, then use IGI’s official verification service. Melee and grouped selections do not automatically include individual reports for every stone.

Verify a report with IGI ↗
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A PALETTE FOR YOUR NEXT CREATION

Let color lead the conversation.

Warm, delicate or expressive. Explore a color family, then find the outline and matching details that belong with it.

Yellow ↗Pink ↗Blue ↗Green ↗Red ↗Champagne ↗
Colored lab-grown diamond selection
Jewelry design illustration and finished-piece concepts
Design illustration

DIAMONDS TO JEWELRY

Your idea can go further.

Alongside loose diamonds and matching stones, discuss 18K gold customization, OEM and ODM. Bring an existing design, a reference image or a small-collection idea.

OEM / ODM

THE LIENGEM JOURNAL

Recent selections and arrivals.

Current selections, new arrivals and practical sourcing guides. Browse by topic and bring what interests you into an inquiry.

Explore more ideas

BEGIN WITH A CONVERSATION

Start with one diamond. Get to know LIENGEM.

Tell us your sourcing direction or customization request to discuss current options and the next step.

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