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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

PLATING · VERMEIL · RHODIUM · RUTHENIUM

Gold vermeil and plating, to a specified thickness.

We plate gold, rhodium and black ruthenium over 925 sterling silver to the thickness you specify, recorded per batch. Where a piece must qualify as gold vermeil, we plate to the US FTC standard.

What we plate

Gold plating

Yellow or rose gold, 1–2.5 microns depending on request. Thickness recorded per batch.

Gold vermeil

2.5 microns or more of gold over 925 sterling silver — the US FTC definition of vermeil. Available on request.

Rhodium

Bright white rhodium over silver or gold, for shine and tarnish resistance.

Black ruthenium

A dark, hard finish for contrast and oxidised looks.

What “vermeil” actually means

Gold vermeil has a legal definition in the US: gold of at least 2.5 microns over sterling silver. Thinner gold over silver is gold-plated sterling, not vermeil. We state the metal, the base and the micron thickness on every quotation, so your listings stay compliant in every market you sell to.

Specify a metal and finish for a quote.

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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