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MOQ FROM 10 PCS/STYLE (NEGOTIABLE)  ·  SAMPLING 5–7 BUSINESS DAYS  ·  REPLY WITHIN 1 WORKING DAY  ·  METALS 925 SILVER, 9K–18K GOLD  ·  INCOTERMS EXW, FOB BANGKOK, CIF

MANUFACTURING

Seven standing departments under one roof.

Every stage of production is a department with its own staff and equipment. Nothing is subcontracted to a queue we cannot see.

Manufacturing departments

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01

Design & CAD

3D modelling and technical development of jewellery designs, with precise measurements for wax and resin models.

CAD & WAX MODELLING

Casting

02

Casting

Gold and silver alloys cast to a recorded recipe per order, by gravity and vacuum methods.

GRAVITY & VACUUM CASTING

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03

Filing & Assembly

Manual filing and assembly of components at the bench, including prong and bezel preparation.

BENCH FILING & ASSEMBLY

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04

Stone Preparation

Calibration and cutting of gemstones to the mount, with colour and clarity matched to the retained master.

IN-HOUSE STONE CUTTING

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05

Stone Setting

Prong, bezel, channel, pave and invisible setting on calibrated tools.

PRONG · BEZEL · CHANNEL · PAVÉ

Polishing & Plating

06

Polishing & Plating

Surface finishing and electroplating — rhodium, yellow and rose gold, black ruthenium.

RHODIUM · GOLD · RUTHENIUM

Quality Control

07

Quality Control

Final inspection for dimensional accuracy, weight and surface finish before packing; AQL sampling on bulk.

SIX INSPECTION POINTS

Production capacity

Sustained output of up to 8,000 pieces a month across all categories, with the mix set per order — one month can run mostly rings for one account and mostly earrings for another. Production lead times are quoted as a range by quantity band from an approved sample, and repeat orders of styles with tooling and references on file ship faster. Tell us your category and quantity and we will give you a range.

CATEGORY

CAPACITY SHARE

LEAD TIME

NOTES

Rings

Within 8,000/mo total

By quantity band

Standard production

Earrings

Within 8,000/mo total

By quantity band

Standard production

Pendants

Within 8,000/mo total

By quantity band

Standard production

Bracelets & Bangles

Within 8,000/mo total

By quantity band

Standard production

Matched Sets

Within 8,000/mo total

By quantity band

Standard production

Metals and plating

925 Sterling Silver

From 10 pcs per style (negotiable)

Yellow & Rose Gold Plating

1–2.5 µm, recorded per batch

9k, 14k, 18k Gold Alloys

From 10 pcs per style (negotiable)

Black Ruthenium Plating

To specification, recorded per batch

Rhodium Plating

To specification, recorded per batch

Alloy recipe

Mixed to a recorded recipe per order; fineness verified before stamping

Stone department

Calibration and treatment disclosure recorded per lot. Colour is matched to a master stone retained for your account; calibration is to the mount, not sorted to fit it. Applies to stone-set styles only.

STONE

CALIBRATION

COLOUR MATCHING

TREATMENT DISCLOSURE

Ruby

Calibrated to the mount

To retained master

Heated / unheated, stated beside the stone

Blue Sapphire

Calibrated to the mount

To retained master

Heated / unheated, stated beside the stone

Fancy Sapphire

Calibrated to the mount

To retained master

Heated / unheated, stated beside the stone

Emerald

Calibrated to the mount

To retained master

Oiled / minor / none, stated beside the stone

Cubic Zirconia

Calibrated to the mount

Batch matched

Synthetic, stated as such

Send a tech pack and we will quote by department.

Crimson Gems

Silver and gold jewellery, manufactured to specification in Bangkok, Thailand.

CONTACT

LOCATION

Jewelry Trade Center

919/408, 32nd Floor

Silom Road, Bangkok 10500

Thailand

CAPABILITIES

925 Sterling Silver

9k–18k Gold

Rhodium & Ruthenium Plating

Ruby, Sapphire, Emerald

Custom Development & Bulk Production

© 2026 Crimson Gems · Reg. 0105554078931 · TGJTA member · All rights reserved.

Jewellery manufacturer · Bangkok, Thailand

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