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The Diamond Testers Are Put To The Test By The New NDC Portal

The Natural Diamond Council (NDC) has launched the Assure portal, which rates testers on their ability to differentiate natural diamonds from lab-grown diamonds.

The Assure 2.0 website evaluates and contrasts the many verification devices on the market, taking into account the sorts of diamonds it screens for, the amount of diamonds it can process, the size of the device, and the level of skill necessary. A third-party laboratory independently tests each diamond against an Assure sample, which includes natural and lab-grown diamonds as well as simulants. According to the NDC, the sample contains synthetic diamonds that are not yet commercially available in the industry. They are graded based on the number of false positives (how many synthetics or simulants are mistakenly flagged as naturals), the number of referrals (how many need to be "referred" for further testing), and overall accuracy.

The optimum false positive and referral rates, according to the NDC, are zero, while the optimal accuracy rate is 100%. According to the NDC, all instruments are operated by a beginner to imitate the results expected from a new customer of the item. Participants in the programme can display the Assure Partners and Certification Mark, which indicates that the programme has been independently assessed. According to the NDC, the mark is not an endorsement of the device or its test findings. The announcement comes as De Beers introduces yet another new diamond screener: an automated melee device that can screen up to 3,600 small diamonds per hour to determine whether they are natural or lab-grown.

According to a spokesman for JCK, the machine "particularly caters to the tiniest melee sizes, from 0.0033 carats down to 0.001 carats—one-tenth of a point." "By using an automated technique, it considerably improves the efficiency of the procedure for screening diamonds of this size." According to the company, the machine was created in collaboration with the industry and "needs no additional displays or further equipment and runs as a totally standalone unit." The innovative gadget, which took De Beers Group Ignite 18 months to build, will be ready in 2023. The price has not been disclosed.


Billionaire Laurence Graff paid a record-breaking $46.1 million for a magnificent vivid pink diamond weighing 24.78 carats. Originally owned by his competitor Harry Winston, it now carries graff’s name and is a part of the legendary collection of rare diamonds.

We usually advise brilliant round diamonds with a cut grade of very good, ideal, or super ideal for engagement rings (also known as hearts and arrows). A high cut grade maximises a diamond’s beauty for a given carat weight.


It’s crucial to have a concept of what you might prefer before starting your search because it will enable you to focus on fewer of the many engagement ring possibilities that are now available. Also, when you initially start browsing, it helps to have a few distinct design concepts and the overall budget because the variety can be overwhelming.

Here are Engagement Ring Trends 2023:

1. Modern Art-Deco
2. Colored Stones
3. Lab-Grown Diamonds
4. East-West Settings
5. Multiple Large Stones

The traditional round diamond form, which is the most common, may come to mind when you think of diamonds. But if you want something different, a tonne of alternative forms may be found to suit your unique taste and style. Each diamond shape has its own fire and brilliance because they are cut to different standards, altering how they reflect light.

The most popular kinds of diamonds are listed below:

1. Round Brilliant Cut Diamonds
2. Princess-Cut Diamonds
3. Marquise-Cut Diamonds
4. Cushion-Cut Diamonds
5. Emerald-Cut Diamonds
6. Radiant-Cut Diamonds
7. Pear-Shaped Diamonds
8. Oval Diamonds
9. Asscher-Cut Diamonds