Metal Guide

Sterling silver, 18K gold, PT950 platinum, titanium steel and alloy: purity, hardness, allergy risk and price explained.

74 articles total

Rose Gold vs Copper-Alloy Jewelry: How Wear and Skin Reaction Differ
Metal Guide

Rose Gold vs Copper-Alloy Jewelry: How Wear and Skin Reaction Differ

Rings turned customers' fingers black after six weeks because they were plated brass sold as rose gold. Here is how buye...
James Wang Oct 2, 2026 5 min read
Grade 2 vs Grade 5 Titanium Jewelry Explained
Metal Guide

Grade 2 vs Grade 5 Titanium Jewelry Explained

Titanium jewelry is sold as "grade 2" or "Grade 5" and the difference is real. Here is which grade is stronger, which an...
David Chen Oct 1, 2026 6 min read
Oxidized Silver: How Black Patina Is Made
Metal Guide

Oxidized Silver: How Black Patina Is Made

That dramatic dark recess in silver jewelry is a controlled chemical finish. Here is how oxidized silver is made, why it...
David Chen Oct 1, 2026 7 min read
Cobalt Chrome Rings: The Modern Wedding Metal
Metal Guide

Cobalt Chrome Rings: The Modern Wedding Metal

Cobalt chrome rings offer bright white durability at an accessible price. Here is what buyers should know about strength...
David Chen Oct 1, 2026 6 min read
Recycled Gold and Eco-Friendly Jewelry Metals: What It Actually Means - HOLYCOME
Metal Guide

Recycled Gold and Eco-Friendly Jewelry Metals: What It Actually Means - HOLYCOME

Recycled gold is the most accessible sustainable choice in fine jewelry. This guide explains what recycled gold is, how ...
Grace Zhao Sep 30, 2026 11 min read
Lost Wax Casting vs 3D Printing in Jewelry Making - HOLYCOME
Metal Guide

Lost Wax Casting vs 3D Printing in Jewelry Making - HOLYCOME

Jewelry is made by lost wax casting or by 3D printing a wax model. This guide explains both processes, their cost, lead ...
Grace Zhao Sep 30, 2026 11 min read
Jewelry Stamps Decoded: 925, 750, 585, PT950 and More - HOLYCOME
Metal Guide

Jewelry Stamps Decoded: 925, 750, 585, PT950 and More - HOLYCOME

Tiny stamps inside jewelry tell you what metal you are buying. This guide decodes 925, 750, 585, 375, PT950, maker marks...
Grace Zhao Sep 30, 2026 10 min read
Green Gold, Blue Gold and Rose Gold: Gold Alloy Colors Decoded - HOLYCOME
Metal Guide

Green Gold, Blue Gold and Rose Gold: Gold Alloy Colors Decoded - HOLYCOME

Pure gold is always yellow. Every other gold color is an alloy. This guide explains what creates rose, white, green and ...
Grace Zhao Sep 30, 2026 11 min read
Niobium Jewelry: Hypoallergenic Metal You Can Anodize Rainbow - HOLYCOME
Metal Guide

Niobium Jewelry: Hypoallergenic Metal You Can Anodize Rainbow - HOLYCOME

Niobium is a soft, ultra-hypoallergenic refractory metal used for sensitive-ear piercing jewelry. This guide explains it...
Grace Zhao Sep 30, 2026 11 min read
Black Rhodium Jewelry: The Dark Finish That Re-Plates - HOLYCOME
Metal Guide

Black Rhodium Jewelry: The Dark Finish That Re-Plates - HOLYCOME

Black rhodium is a thin black plating over silver or gold that gives jewelry a modern dark look. This guide explains how...
Grace Zhao Sep 30, 2026 11 min read

Wholesale Order Terms

As a factory-direct jewelry manufacturer, we quote every order against stone type, metal, setting and finish. Loose stones are priced per carat, finished rings, earrings and bracelets per piece, and custom metal work per gram. Send your stone, metal, size and quantity for a wholesale price list in USD, quoted with FOB, EXW or DDP shipping terms.

MOQ & Pricing

Minimum order quantity (MOQ) starts from 5 pcs per style. Mixed-SKU orders are accepted, and volume discounts apply from 50 pcs; pricing is tiered by quantity and quoted per piece, per carat or per gram.

Lead Time

Ready-stock pieces ship in 2-5 business days. Custom sampling takes 5-10 days; bulk production lead time runs 10-25 days, depending on design, stone size and order quantity, confirmed in your written quote.

Payment Terms

We accept T/T telegraphic bank transfer, PayPal, Alibaba Trade Assurance and Western Union. OEM and private-label orders require a 30% deposit, with the 70% balance paid before shipment.

Shipping

DHL, FedEx and UPS for samples and small orders; air or sea freight for bulk. Worldwide delivery under FOB, EXW or DDP terms, with QC photos shared before dispatch.

Frequently Asked Questions (FAQ)

What is your MOQ for wholesale jewelry orders?

MOQ starts from 5 pcs per style. Mixed-SKU orders are welcome, and catalog styles can be combined into one batch. Larger OEM/ODM and private-label programs negotiate a tiered MOQ and volume discount.

How do you price wholesale moissanite and diamond jewelry?

Loose stones are quoted per carat, finished rings, earrings and bracelets per piece, and custom metal work per gram. Send the stone, metal, size and quantity, and our sales team returns a wholesale price list with USD FOB, EXW or DDP quotes and a written price range.

What is the typical lead time for samples and bulk orders?

Ready-stock pieces prepare in 2-5 business days. Samples take 5-10 days; bulk production lead time runs 10-25 days depending on design, stone size and quantity. The exact timeline is confirmed in your quote before sampling.

Which payment methods and terms do you accept?

We accept T/T telegraphic bank transfer, PayPal, Alibaba Trade Assurance and Western Union. Custom and OEM orders require a 30% deposit, and the 70% balance is paid before shipment; final terms are agreed in the order agreement.

Can you produce custom OEM/ODM and private-label jewelry?

Yes. Send your CAD file, photo, sketch or target price. We handle stone selection, casting, setting, plating, laser engraving, hang tags, jewelry boxes and certificate cards under your own brand name.