RAPLAB® offers our clients the expertise, convenience and technological sophistication of our Rapaport diamond grading laboratory. Our gemological laboratory efficiently and securely evaluates the quality of your diamonds using the latest technology, with online access to report results and High Definition imaging.

The Rapaport Investment Diamond Certificate (RDC™) conservatively grades diamonds based on Gemological Institute of America (GIA®) standards. Additional gemological information including tint, location and color of inclusions as well as high resolution images are provided online
and with the report.

Rapaport Investment Diamond Certificate (RDC™) is the industry’s most stringent standard for diamond quality. Obtained only by highest quality diamonds, the Rapaport investment diamond certificate separates premium quality from other high quality diamonds. By certifying top quality diamonds the Investment Diamond Certificate provides absolute confidence and assurance of quality and added value.

All Investment Diamond are double tested as they include an additional independent GIA® diamond grading report. The Investment Diamond Certificate will only be issued for the best quality 0.50 ct. and larger, D-H, IF-VS2, excellent cut, polish and symmetry, that meet investment quality standards. Diamonds that lack overall brilliance, have features that limit trade liquidity or have borderline grades may not be issued an Investment Diamond Certificate.

The Rapaport Investment Diamond Certificate is designed to identify the best diamonds in the market while providing the trade, investors and consumers with the highest level of confidence in quality.

Basic Requirements for obtaining a Rapaport Investment Diamond Certificate:

  • Shape: Round Brilliant
  • Size: 0.50 carat and larger
  • Color: D-H
  • Clarity: IF-VS2
  • GIA: A GIA grading report issued within the past two years
  • The diamond must also meet Rapaport Specifications A2 or better.

Obtaining an Investment Diamond Certificate guarantees the diamond’s quality and provides confidence for both buyer and seller, thus paving the way for online diamond transactions. Removing the physical barriers of diamond trading increases ease of sale and enables faster, safer and easier transactions, thus enlarging the overall market.

In addition, Rapaport certified diamonds maintain their market value, making them ideal for investors, looking for portfolio diversification.

The RapLab Diamond Grading Report (RGR) provides vital gemological information that enables clients to confidently trade diamonds over the Internet.

The RapLab Grading Report (RGR) provides diamond buyers and sellers with increased confidence in the quality of the diamond. Every Diamond Graded as an RGR can be listed on RapNet as a RapLab Verified diamond and sold directly to retailers as a customized report for their unique brand.

In addition to the standard grading information of a traditional report, the RGR includes Added Value Gemological Information. This information grades important characteristics such as; tint, location and color of inclusions, milky and inclusion visibility (Eye Clean) to provide increased confidence for any online trade.

Every report issued includes high resolution images and video which are provided in an online version of the report.

RGR reports can be easily uploaded to RapNet allowing RGR holders to earn a special “RapLab Verified” mark beside their listing.

All diamonds submitted to RGR for grading are tested for synthetics and treatments using the latest De Beers and/or GIA® testing devices.

The RapLab Diamond Grading Report will be available for round 0.15 carat and larger.

Any RapNet Grading Report can be easily customized to your brand. Now you too can have your very own trusted diamond grading laboratory. Be your customer’s diamond expert and bolster your brand. Get a private-label for your RGR today.

  • The Private Label Diamond Grading report puts the power of owning a diamond laboratory into the hands of retailers and small manufacturers
  • Any client who wishes to participate in the white label service is encouraged to complete our contact form and send us an image of their logo
  • We’ll prepare a sample of your grading report for review and if you approve, you will then be able to request your branded report for any diamond that you have graded by RapLab.
  • Private Label reports will offer retailers the ability to better control their customer experience from the moment a client asks to review a diamond to it’s final sale. The report has all of the benefits of the RGR so store customers will be able to see online video of the diamond and easily share or show off their diamond to their friends and family.

Buy and Sell with Confidence
The RapLab Consultation Card will give you essential diamond grading information, so you can sell your diamond efficiently and easily. Available right at the source in India, this simplified grading service provides diamond manufacturers and sellers with the ability to save money and enhance their local trades. Credit your consult purchase to a Full RapLab: Grading Report and save money!

The RapLab Consultation Card provides diamond suppliers with essential diamond grading. Made to be the size of business card, this grading report offers traders the opportunity to provide confidence for their polished diamonds at a value driven price. 

Buy and Sell with Confidence.

The RapLab consultation includes:

• Essential grading information (Shape, Size, Color, Clarity, Fluorescence)
• Gemological Details (EyeClean, BGM)
• Measurement Data
• Natural Diamond Verification
• Inscription (optional)

The RapLab consultation card can be upgraded to a full RapLab Grading Report. The cost of your purchase for a consultation can be credited to a RapLab Diamond Grading Report (RGR).


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RapLab® provides fine quality high definition images of diamonds suitable for internet communication. High level magnification of select areas of the diamond is available enabling buyers to examine diamonds online.

RapLab® services provide clients electronic version of their images for posting onto their websites. Clients may also request that images be automatically posted on the RapNet trading network.

Images stored on RapLab’s servers may be uploaded to client’s websites with authentication that ensures the image presented online is the untouched image of the specific diamond. Furthermore, images can be populated to the client’s website and distributed to buyers through the RapNet instant inventory program.

For more information about RapLab® images please contact us.