How to Buy Loose Diamonds: Everything You Need to Know

Posted by Hari Krishna

September 16, 2023

In an era where financial security is paramount, everyone is buzzing about investing. With so many choices in the market, one option truly stands out, natural loose diamonds. By choosing them, you make a smart move in supporting sustainable practices and safeguarding our environment. Their ethical origin sets them apart, disregarding the controversial practices that corrupt other investments. Beyond their breathtaking beauty and symbolism, diamonds have established themselves as a prudent investment choice. But entering this glittering arena requires knowledge and mastery.


Within this in-depth guide, we uncover the intricacies of purchasing loose diamonds, shedding light on the carat, cut, colour, and clarity of diamonds. Discover how to make informed decisions, whether seeking to craft a piece of dazzling jewellery or diversify your investment portfolio.


Understanding the Basics of Loose Diamonds


A loose diamond is a diamond that has been cut and polished but is not yet set into jewellery. Buying loose diamonds offers several advantages, including customising jewellery and better assessing the diamond’s quality. This flexibility makes buying diamonds an attractive option for consumers and businesses.


When purchasing loose diamonds, it is crucial to grasp the Four Cs: carat weight, cut, colour, and clarity. Carat weight determines the diamond’s size, measured in carats, with larger ones being rarer and more valuable. However, size is not the sole factor; the other Cs significantly impact overall quality. 


The cut, not the shape, influences how brilliantly a diamond shines, graded by the Gemological Institute of America (GIA). Colour ranges from D (colourless) to Z (light yellow or brown), with D-F being the most prized. Clarity, graded by the GIA from Flawless to Included, gauges internal flaws and blemishes, with fewer imperfections equating to higher value. 


Diamond Shapes and Cuts


Diamond shapes and cuts are essential considerations when buying loose diamonds. Shapes like round, princess, emerald, and marquise offer diverse aesthetics, while the cut determines the diamond’s brilliance. A well-cut diamond sparkles brilliantly, making it crucial to choose both shapes and cut wisely.

Different diamond shape available

Sourcing and Suppliers


Numerous suppliers and diamond-cutting centres have well-established the diamond industry.




When buying a loose diamond, it is crucial to ensure that it comes with a reputable grading certificate, preferably from a renowned gemological institute like the Gemological Institute of America (GIA), the International Gemological Institute (IGI), or the HRD Antwerp. These institutions are globally recognised for their expertise in evaluating and certifying diamonds, providing consumers with a high level of confidence in their diamond purchases.

Certified loose diamonds by reputable institutes

In terms of grading diamonds, the Gemological Institute of America (GIA) is regarded as the gold standard. GIA’s grading reports are highly respected and trusted in the industry. They provide detailed information about the diamond’s color, clarity, cut, and carat weight, often including additional data on fluorescence and symmetry. GIA’s strict grading standards and consistency make their certificates highly sought after by buyers and sellers alike.


The International Gemological Institute (IGI) is another reputable institution known for its diamond certification services. IGI offers comprehensive reports that assess a diamond’s quality based on the Four Cs and may include a plotted diagram of the diamond’s inclusions. Their reports are widely accepted and provide valuable information for buyers seeking assurance about the quality and authenticity of their diamonds.


HRD Antwerp, a European-based institute, also offers reliable diamond certification services. HRD’s grading reports provide detailed information on a diamond’s attributes, and they are particularly well-regarded in the European market. HRD certificates offer an additional layer of confidence for consumers, especially those looking for diamonds from European sources.


Ethical Sourcing


Ethical diamond sourcing is paramount in today’s socially conscious market. Ensure the Kimberley Process Certification Scheme is adhered to prevent conflict diamonds from entering the supply chain.


Science-Based Targets Initiative(SBTi)


It is important to consider both the company’s ideals and ethics when purchasing loose diamonds. Look for companies supporting efforts like the SBTi (Science-Based Targets Initiative). By buying from diamond manufacturers committed to reducing carbon emissions and promoting sustainability, you are ensuring your diamond’s quality and contributing to a brighter, more responsible future for the diamond industry and the planet.


Budget-Friendly Options


The diamond market offers a range of options to suit different budgets without compromising on quality or beauty.


  • Fluorescence Diamonds with faint to medium fluorescence can offer better value. Fluorescence can make a diamond appear whiter in natural light.
  • Fancy shapes, such as ovals, marquise, and pear, can be more affordable than round brilliant diamonds while still exuding elegance.

Inspecting the Diamond


Examine the loose diamonds in person before finalising the purchase. Look for any visible inclusions or blemishes, and assess how the diamond sparkles under different lighting conditions.

Insurance and Appraisal


Once loose diamonds are purchased and set into jewellery, consider getting them insured. Diamond jewellery is a valuable asset, and insurance provides peace of mind in case of loss, theft, or damage. Additionally, consider getting an appraisal to determine the current market value of the piece, which can be helpful for insurance purposes.


Contact Loose Diamonds Manufacturer in India


Buying a loose diamond is a significant decision for personal or business purposes. You can confidently navigate the process by understanding the Four Cs, setting a budget, choosing a reputable diamond dealer, considering shape and setting, and securing insurance. Remember that a well-informed purchase will be a valuable asset.


At Hari Krishna Exports, we pride ourselves on being your trusted partner in the world of loose diamonds. Our collection features an exquisite range of high-quality diamonds, each with a comprehensive gemological certificate. We commit to helping you find the perfect loose diamond to suit your needs and preferences.

Download our diamond purchasing app,, on Android and iOS. Buy loose and wholesale diamonds from anywhere globally. You can browse through our selection of 9+ different diamond shapes.


Register here to stay informed about the latest trends in natural loose diamonds.


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