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RapNet Diamond Search Parameters

How to use RapNet’s diamond search filters—from basics like shape and clarity to advanced options like No BGM, Eye Clean, and Type IIa.

Philippa Corrick avatar
Written by Philippa Corrick
Updated over 2 weeks ago

Basic Filters

  • Weight, Shape, Color (White or Fancy), Clarity

  • Cut – Ideal, Excellent, VG+, etc.

  • Grading Report / Lab Report Number

  • Buy Request Notifications

  • Location – Includes flexible delivery and seller location

  • Seller – Search by company name or RapNet ID (use semicolons to separate multiple sellers)

  • Rated Sellers Only

  • Media – Filter by diamonds with Images, Videos, or both

Finish Quality Explained (3X, EX-, VG+, VG-)

These are RapNet’s pre-defined combinations of Cut, Polish, and Symmetry:

  • 3X = Cut, Polish, and Symmetry are all Ideal or Excellent

  • EX- = Cut is Excellent; Polish and Symmetry are Excellent or Very Good (but not all three are Excellent)

  • VG+ = Cut is Very Good; Polish and Symmetry are Excellent or Very Good

  • VG- = Cut is Very Good; Polish and Symmetry are Very Good or Good (but not all three are Very Good)


Additional Preferences

  • Rough Source / Green Star diamonds

  • Price Range – Filter by RapNet or Cash price

  • Digital Notes

  • Search by Lab Report Number (also available on the app)

Show Only Options

  • Latest Listings – Newly listed diamonds (last 7 days)

  • Matched Pairs

  • Primary Suppliers

  • Guaranteed Available

  • Type IIa/2A -

    • RapNet supports GIA-recognized diamond types, including: Type Ia, IaB, Ib, IIa, IIb, and Pink.

      • These values are automatically synced from the GIA database when you upload GIA-graded diamonds.

      • You do not need to manually add the "Diamond Type" field during upload—RapNet fetches it for you.

    • View and Sort by Diamond Type: To display and sort diamonds by type in your search results:

      1. Go to More > Custom Columns

      1. Select Diamond Type

      2. Use the column header to sort by Diamond Type


Special Diamond Attributes

  1. BGM Filter (No Brown/Green/Milky):

    • Enabling “No BGM” adds a “Mixed” filter to shades

    • Definition: No BGM = No brown or green tinge, no milky/cloudy appearance

    • Note: Shade/tinge doesn’t refer to fancy colors

    • Not a required field—check supplier comments or ask via the Trade Center

  2. Eye-Clean Diamonds:

    • No visible inclusions to the naked eye

    • Note: Based on the seller’s representation, not the grading report

Note: When selecting ‘’no BGM’’ in the search form, the search results will include a ‘’mixed’’ filter to ‘’shades’’.


No BGM: What It Means

No BGM refers to diamonds that do not show a brown or green tinge and are not milky or cloudy in appearance.

  • BGM is not a required upload field on RapNet.

  • Some suppliers include BGM info in the comments section.

  • For clarity, you can message suppliers directly through the Messaging Center or Trade Center.

Note: “Tinge” here does not apply to fancy-colored diamonds.

This is an industry term, not a lab-certified grade.


Eye-Clean: What It Means

Eye-clean diamonds have no inclusions visible to the naked eye.

  • Especially relevant for SI and I1 clarity diamonds, where inclusion visibility varies.

  • RapNet allows you to filter for Eye-Clean diamonds.

Note: This is based on the seller’s representation and is not calculated and does not appear on the grading report.

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