Certification Explained

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

72 articles total

Moissanite GRA Certificate - HOLYCOME
Certification Explained

Moissanite GRA Certificate - HOLYCOME

Most moissanite sold today carries a GRA certificate. This guide explains what GRA is, what the report contains, and how...
Sarah Lin Sep 30, 2026 17 min read
GIA vs IGI vs HRD Diamond Grading - HOLYCOME
Certification Explained

GIA vs IGI vs HRD Diamond Grading - HOLYCOME

GIA, IGI and HRD are the three biggest diamond labs, but they do not grade the same way. This guide compares color, clar...
Sarah Lin Sep 30, 2026 16 min read
Diamond Clarity Grade Explained - HOLYCOME
Certification Explained

Diamond Clarity Grade Explained - HOLYCOME

Diamond clarity measures internal inclusions. This guide walks through the FL, IF, VVS, VS, SI and I grades, what each l...
Sarah Lin Sep 30, 2026 16 min read
Diamond Cut Grade Explained - HOLYCOME
Certification Explained

Diamond Cut Grade Explained - HOLYCOME

Cut is the four C that creates a diamond's sparkle. This guide explains GIA and AGS cut grades, ideal proportions, and w...
Sarah Lin Sep 30, 2026 17 min read
Reading a Diamond Grading Report - HOLYCOME
Certification Explained

Reading a Diamond Grading Report - HOLYCOME

A diamond grading report is a one-page document, but most buyers only glance at the grades. This guide walks through eve...
Sarah Lin Sep 29, 2026 18 min read
Certificate vs Appraisal - HOLYCOME
Certification Explained

Certificate vs Appraisal - HOLYCOME

A diamond certificate grades the stone; a jewelry appraisal prices the piece. This guide explains the difference, why in...
Sarah Lin Sep 29, 2026 17 min read
Girdle Laser Inscription Verification - HOLYCOME
Certification Explained

Girdle Laser Inscription Verification - HOLYCOME

A diamond girdle laser inscription is the report number etched in micro-script on the stone's edge. This guide shows how...
Sarah Lin Sep 29, 2026 17 min read
Gübelin and AGL Colored Gemstone Certificates - HOLYCOME
Certification Explained

Gübelin and AGL Colored Gemstone Certificates - HOLYCOME

Gübelin and AGL are the two most respected labs for colored gemstone reports. This guide explains what origin and treatm...
Sarah Lin Sep 29, 2026 17 min read
Lab-Grown Diamond Certification Explained
Certification Explained

Lab-Grown Diamond Certification Explained

Lab-grown diamonds are chemically identical to mined diamonds, but they require their own certification. This guide expl...
Editorial Team Sep 29, 2026 13 min read
GIA vs IGI vs NGTC: Lab Comparison
Certification Explained

GIA vs IGI vs NGTC: Lab Comparison

Which certificate is best: GIA, IGI, or NGTC? The answer depends on the stone, the market, and the price. This guide com...
Editorial Team Sep 29, 2026 13 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.