VELVET BOX SOCIETY
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Gem Laboratories

GRADING LABORATORIES

DIAMOND CERTIFICATIONS
A diamond grading report or certificate is an independent quality report about a specific diamond. Generally, they are issued by a grading laboratory with no affiliation to any retailer, giving the consumer an objective opinion on the diamond’s quality. This document includes the exact measurements, proportions, color grade, clarity grade, cut grade and carat weight of the diamond. 
It is important to note that there is no governing body responsible for the standardization of a diamond report. Each organization has the latitude to judge to the standards which they feel are appropriate. For this reason, many laboratories fall in/out of favor depending on how it is being operated. It is also important to know that every grade received has an allowance for deviation or a range. For example, a diamond that has been graded excellent for proportions, polish, and symmetry does not mean that it is 'ideal'. Rather, it refers to the fact that all of those qualities fall under a pre­determined standard.

DIAMOND LABORATORIES
​
The leading diamond laboratories in the world are the Gemological Institute of America (G.I.A.), The American Gem Society (AGS).  GIA being the worlds foremost authority in gemology.  Here at the Velvet Box Society we only offer diamonds graded by GIA.
  • GIA (The Gemological Institute of America) ­ established in 1931 and is recognized as the world’s foremost authority in diamond grading. The G.I.A. grades natural, synthetic and treated diamonds. G.I.A. refers to their document as a Diamond Grading Report or a Diamond Dossier (depending on carat weight).
  • AGS (American Gem Society) was founded in 1996 with a mission to help protect the consumer by establishing stricter guidelines of diamond grading. They were the first laboratory to establish the ideal cut grade for round brilliant diamonds and features innovative technology that measures the light performance of diamonds. AGS produces both Diamond Quality Certificates and Diamond Quality Reports.
  • Argyle:  For our pink diamonds many times we will offer a GIA report as well as an Argyle report.
  • Other Laboratories: There are countless other laboratories such as forevermark, EGL USA, EGL International, Gubelin, SSEF, IGI, AGTA, Mason Kay, PCGL and many others.  We use the standards set forth by the Gemological Institute of America.

COLORED GEMSTONE LABORATORIES
Many of the laboratories listed above are credible and excellent gem labs for colored stones both identification and origin reports.  We use multiple laboratories depending on the type of stone and what type of report we are looking to get.  Some laboratories excel in certain types of stones or certain origins.  For that reason we use a combination of GIA, AGL, Mason Kay, Gubelin, SSEF and others.  We select the right lab who is the best for that type of gemstone when we can.

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© COPYRIGHT 2017-2021. ALL RIGHTS RESERVED. .All Rights Reserved. All trademarked names, brands, models, logos, images, and graphics are the sole property of their respective trademark owners and copyright and credit to their respective owners. Timberbrook Capital, Velvet Box Society, this site, including its owners, operators, and developers, is not affiliated with nor endorsed by any watch or jewelry brand manufacturer brand or any subsidiaries thereof, in any way Timbrook Capital, Velvet Box Society is not an authorized retailer of any watch or brand name jewelry manufacturer.  By Browsing, purchasing, or referencing our site for any reason the user  agrees to release all claims to and against Timberbrook Capital, its affiliates, owners, and employees.
  • Home
  • Antique & Vintage
    • Latest Finds
    • Shop By Era
    • Engagement Rings
    • Stackable Bands
    • Cocktail Rings
    • Timepieces
    • Gentlemans Accessories >
      • Gentleman's Rings
    • Bracelets
    • Earrings
    • Necklaces & Pendants >
      • Charms & Pendants
      • Chains
    • Diamonds & Gems
    • Signed Jewelry
    • From The Vault
    • The Archives: A Collection of Sold Items
    • Final Sale Items
  • Custom
    • Custom Jewelry
    • Custom Engagement Rings
    • Recreating an Heirloom
    • Family Crest Jewelry
    • Design Process
    • Schedule Consultation
    • For The Trade
    • More For The Trade
  • Sell To Us
  • Services
    • Appraisal Services >
      • Jewelry Insurance
      • Appraisals
      • SELL TO US
      • Exchange
      • Museum Collection Services
    • Schedule Consultation
    • Custom Jewelry Design
    • Recreating an Heirloom
    • Jewelry Repair
    • Timepiece Repair
    • Diamond Cutting and Gemstone Repair
    • Find Jewelry For Me
    • Find a Watch For Me
    • Find a Diamond
    • Jewelry Rental
    • Insurance Replacement
    • Private Collection Management
    • Layaway Plan
    • Consignment
    • Wholesale Inquiries >
      • Host a Trunk Show
  • The Brand
    • Our History >
      • Sustainability
      • Military and First Responder Discounts
      • Kimberly Process
    • Our Experts
    • Jewelry School >
      • Educational Session
      • Eras of Style >
        • Ancient
        • Medieval & Renaissance
        • Baroque & Rococo
        • Georgian
        • Victorian
        • Edwardian
        • Art Nouveau
        • Arts & Crafts
        • Art Deco
        • Retro
        • Hollywood Glam
        • Mid-Century Modern
        • Brutalist
        • Art Organique
        • Contemporary
        • Simplistic
      • Diamonds & Gems >
        • Gemstone Education >
          • Gemstone Laboratories
          • All About Gemstones
          • Approximate Gemstone weights
          • Carat to MM Conversion
          • Gemstone Colors
          • Created, Synthetic & Simulated Gemstones
          • Equivalents Chart
        • Diamond Education >
          • Diamond Carat Weight by MM
          • Comparative Round Size Info
          • Diamond Cutting and Gemstone Repair
          • Lab Grown Diamonds
      • Counterfeit Jewelry & Watch Identification
      • Engagement Rings
      • Diamond Earrings
      • Timepieces >
        • Vintage Rolex
        • Watch Terms
      • Ring Designs & Sizings >
        • Men's Wedding Band Finishes
        • Ring Width
        • Ring Size
        • Wrist Size
      • Custom Jewelry
      • Metals
      • Engraving
      • Birthstones
      • Jewelry Care
      • Jewelry Terms
    • Makers Biographies
    • Press
    • Be Social
    • Gems by VBS The BLOG
    • Reviews
    • Advice >
      • The Courtship
      • The Wedding
    • Events
    • Holiday Shipping
    • Careers
    • Affiliate Program
  • Contact