Certification Explained

How to read GIA, IGI and NGTC certificates line by line and spot fake papers.

72 articles total

IGI Certification: The International Gemological Institute Explained
Certification Explained

IGI Certification: The International Gemological Institute Explained

Complete guide to IGI diamond and gemstone certification: how IGI grading works, report types, IGI vs GIA, lab-grown dia...
Editorial Team Sep 29, 2026 5 min read
GIA Certification Explained: What Every Jewelry Buyer Should Know
Certification Explained

GIA Certification Explained: What Every Jewelry Buyer Should Know

Complete guide to GIA diamond certification: what GIA is, how grading works, what a GIA report contains, how to verify a...
Editorial Team Sep 29, 2026 5 min read
Spotting a Fake GIA Report: What to Verify
Certification Explained

Spotting a Fake GIA Report: What to Verify

Four-point intake check for counterfeit GIA reports: online Report Check, girdle inscription match, measurement consiste...
David Chen Sep 28, 2026 5 min read
Diamond Certification: What Actually Matters for Buyers
Certification Explained

Diamond Certification: What Actually Matters for Buyers

A certificate from an unknown lab is not the same as trade currency. Knowing which fields move money prevents overpaying...
David Chen Sep 27, 2026 5 min read
What Is VVS1 Clarity? Understanding Diamond Clarity Grades
Certification Explained

What Is VVS1 Clarity? Understanding Diamond Clarity Grades

VVS1 is one of the highest clarity grades. Learn what it means, how it compares to VVS2, VS1, and IF, and whether it is ...
Sarah Lin Sep 26, 2026 5 min read
Diamond Certification: What the Report Really Says (and What It Doesn't)
Certification Explained

Diamond Certification: What the Report Really Says (and What It Doesn't)

Buyers assume a grading report guarantees value. It grades one stone and says nothing about price, setting or the retail...
Grace Zhao Sep 25, 2026 5 min read
How to Read an IGI Lab-Grown Diamond Certificate
Certification Explained

How to Read an IGI Lab-Grown Diamond Certificate

Line-by-line walkthrough of an IGI lab-grown diamond certificate: origin method, color and clarity grades, proportions, ...
David Chen Sep 23, 2026 5 min read
Lab-Grown Diamond Grading Reports: What They Prove
Certification Explained

Lab-Grown Diamond Grading Reports: What They Prove

A report does not say the diamond is real. It grades the 4Cs, documents how it was grown, and matches the girdle inscrip...
Sarah Lin Sep 23, 2026 5 min read
GIA vs IGI Diamond Reports: Pricing, Turnaround and Positioning
Certification Explained

GIA vs IGI Diamond Reports: Pricing, Turnaround and Positioning

A GIA report costs $94 to $120 and takes 2 to 3 weeks. An IGI report costs $45 to $70 and takes 3 to 5 days. The differe...
Sarah Lin Sep 17, 2026 5 min read
IGI And NGTC Explained: Lab Diamonds And China National Check
Certification Explained

IGI And NGTC Explained: Lab Diamonds And China National Check

GIA, IGI and NGTC differ why? Why do lab diamonds rely on IGI? This guide reads the IGI and NGTC reports you will actual...
Sarah Lin Sep 12, 2026 6 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.