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Ashth’s Guide To The Best Quality Lab Grown Diamonds

Ashth’s Guide To The Best Quality Lab Grown Diamonds
Dec 19, 2024

In the ever-evolving landscape of the diamond industry, lab-created diamonds have emerged as a shining beacon of ethical and sustainable luxury. As the demand for these gems continues to rise, discerning buyers seek the crème de la crème in terms of quality. In this guide by Ashth, we delve into the key factors that define the best quality lab-created diamonds, ensuring you make a purchase that not only sparkles but aligns with your values.

  • Cut: The Art of Sparkle

In the mesmerizing world of diamonds, the cut is considered as the most important factor, standing as a testament to the artistry that brings forth the captivating sparkle and visual allure of these precious gems. Understanding the nuances of the cut is essential in unraveling the brilliance that lab-created diamonds offer.

  • Precision is Key:

At the heart of every dazzling diamond is the precision with which it has been cut. This meticulous artistry involves shaping the diamond in a way that optimally interacts with light, unleashing its full potential for sparkle. The cut acts as the window through which light enters and reflects within the diamond, creating a mesmerizing play of brilliance.

  • Ideal Proportions:

Seeking excellence in the cut grade is paramount when selecting lab-created diamonds. Diamonds with an excellent or ideal cut grade have been crafted with unwavering attention to proportions. This ensures that the facets of the diamond are precisely aligned, allowing light to traverse through the stone in a way that accentuates its inherent radiance.

The Ashth magic lies in the careful balance of proportions, where each facet plays a vital role in the reflection and refraction of light. Our ideal cut not only maximizes the diamond's sparkle but also enhances its overall visual appeal. Check our collection of the Ashth signature diamond created with hearts and arrows cuts, truly the embodiment of brilliance. It transforms a mere stone into a radiant masterpiece, captivating the eye with every glint and gleam.

In essence, the cut of a lab-created diamond is the artisan's brushstroke, defining the brilliance that sets these gems apart. When seeking the perfect lab-created diamond, one must appreciate the artistry involved in crafting a cut that transforms the stone into a scintillating symphony of light. It's not just about shape; it's about unlocking the true potential of the diamond's inherent beauty through precision and expertise.

  1. Color: A Kaleidoscope of Brilliance

In the enchanting realm of lab-created diamonds, the spectrum of color unfolds as a captivating journey, distinguished by precision grading and a palette of hues. Understanding the intricacies of color is essential in choosing a lab-created diamond that reflects your desired brilliance.

  • Color Grading:

Unlike their natural counterparts, lab-created diamonds often boast minimal color variations, allowing for a pristine and transparent appearance. The Gemological Institute of America (GIA), a renowned authority in gemstone grading, employs a color scale ranging from D to Z. Diamonds in the D to G range are considered colorless or near-colorless, exhibiting a brilliant transparency that allows light to traverse the gem unimpeded. Most of Ashth’s lab grown diamonds have a colour grading of F. 

For those seeking a timeless and classic aesthetic, diamonds in the colorless to near-colorless range (D to G) offer a pure and radiant allure. The absence of discernible color ensures that the diamond becomes a canvas for the play of light, unveiling its inherent sparkle without any chromatic interference.

  • Fancy Colors:

Diving into the realm of lab-created diamonds opens a door to a world of expressive and vibrant possibilities. While the traditional colorless and near-colorless diamonds embody timeless elegance, lab-created diamonds also offer a spectrum of fancy colors that cater to the avant-garde.

From the serene blues to the romantic pinks, lab-created diamonds in fancy colors are a celebration of individual style. These unique hues not only add a burst of personality to the gem but also allow the wearer to make a distinct statement. Choosing a fancy-colored lab-created diamond provides an opportunity to showcase your preferences, expressing a love for the unconventional and the extraordinary.

In essence, the color of a lab-created diamond is a tale of precision grading and personal expression. Whether you gravitate towards the classic allure of colorless diamonds or the vivid brilliance of fancy hues, the world of lab-created diamonds unfolds as a kaleidoscope, offering a spectrum that caters to every taste and style.


  1. Clarity: A Glimpse into Purity

In the quest for the perfect lab-created diamond, clarity emerges as a key determinant of its allure, offering a window into the stone's flawless purity. Understanding the nuances of clarity, including the nature of imperfections, is crucial in selecting a diamond that epitomizes pristine beauty.

  • Flawless Appeal:

Clarity, as assessed by gemological laboratories such as the Gemological Institute of America (GIA), is a measure of a diamond's freedom from internal and external imperfections, known respectively as inclusions and blemishes. The highest quality lab-created diamonds exhibit minimal or no visible flaws when examined under 10x magnification, creating an illusion of seamless perfection.

Imperfections can take various forms, ranging from tiny crystals and feathers to natural minerals captured during the diamond's formation. While these characteristics are inherent in both natural and lab-created diamonds, the top-tier quality of lab-created diamonds ensures that these flaws are inconspicuous and do not detract from the stone's overall brilliance.

  • Eye-Clean Diamonds:

For those seeking a diamond that appears flawless to the naked eye, it is advisable to focus on stones with clarity grades of VS1 (Very Slightly Included) or better. This categorization signifies that the imperfections are so minute that they are challenging to discern without magnification. As a result, your diamond maintains a pristine and unblemished surface, symbolizing the pure and enduring commitment represented by the engagement lab grown diamond ring. Most of Ashth’s lab grown diamonds have either VS1 or VS2 clarity. 

Opting for an eye-clean lab-created diamond ensures that your gem sparkles with unparalleled brilliance, capturing and reflecting light without interference from noticeable inclusions. This commitment to clarity not only enhances the visual appeal of the diamond but also preserves its symbolic significance, representing the purity of your love and the unblemished journey ahead.

In essence, clarity in lab-created diamonds is not merely a technical attribute; it is an invitation to glimpse into the pure and radiant heart of the gem. Whether pursuing flawless perfection or embracing the charm of minimal inclusions, the clarity of your chosen lab-created diamond becomes a testament to the enduring beauty and commitment it represents.

  1. Carat Weight: Balancing Size and Quality

In the realm of lab-created diamonds, carat weight stands as a captivating factor, influencing the size and visual impact of the gem. Understanding the significance of carat weight is essential, as it involves a delicate balance between personal preferences, style, and the desire for a diamond that exudes both size and quality.

  • Choose According to Preference:

Carat weight is, in essence, a reflection of the diamond's size and mass. However, the decision on carat weight is highly subjective and hinges on individual preferences. Some may be drawn to the allure of a larger, more conspicuous stone, making a bold and prominent statement. Others may prioritize a more modest carat weight, focusing on the overall quality of the diamond rather than sheer size.

It's crucial to approach the selection of carat weight with a consideration of personal style and the intended aesthetic of the final jewelry piece. Some individuals may find a larger carat weight to be a captivating centerpiece, while others may appreciate a more modest size that complements their lifestyle and taste. Ashth’s Jewellery designs are available in a variety of carat options that can be chosen according to your preferences. 

  • Balancing Size with Quality:

While a larger carat weight can undoubtedly make a bold statement, it's equally important to strike a balance with other key factors—cut, color, and clarity—for an optimal combination of size and quality. An ideal cut ensures that the diamond reflects light optimally, maximizing brilliance. Choosing a diamond with a cut that aligns with your preferences contributes to the overall visual appeal.

Similarly, considering the color and clarity of the diamond is essential in creating a harmonious balance. Lab-created diamonds often exhibit minimal color variations, providing an opportunity to choose a stone in the colorless or near-colorless range. Pairing this with high clarity ensures that your diamond remains stunning, symbolizing the purity of your commitment.

In essence, the selection of carat weight in lab-created diamonds is an art, allowing individuals to express their unique style and preferences. Whether opting for a sizable statement piece or a more modest yet high-quality gem, the balance between size and quality ensures that your lab-created diamond not only captivates with its visual impact but also maintains the integrity and brilliance that define a truly exceptional gem.

Certifications: Assurance of Quality of Lab Grown Diamonds

In the world of lab-created diamonds, certifications serve as an indispensable tool for buyers seeking assurance and transparency in their purchase. The certifications, often provided by esteemed gemological laboratories such as the International Gemological Institute (IGI) and the Gemological Institute of America (GIA), play a crucial role in verifying the authenticity and quality of the diamond, instilling confidence in the buyer.

  1. IGI/GIA Certifications:

The International Gemological Institute (IGI) and the Gemological Institute of America (GIA) are globally recognized authorities in gemological research and analysis. These institutions employ rigorous testing and evaluation processes to assess the various attributes of a diamond, ensuring that it meets industry standards for quality and authenticity. All of Ashth’s diamonds are IGI/GIA certified. 

  • Verification of Authenticity: Certifications from IGI or GIA serve as a hallmark of authenticity. They confirm that the lab-created diamond in question is indeed a genuine, man-made gemstone, providing buyers with peace of mind about the origin of their purchase.

  • Quality Assessment: The certifications delve into the intricate details of the diamond's characteristics, including its cut, color, clarity, and carat weight—the famous "4 Cs." Each of these aspects is meticulously evaluated, and the findings are documented in the certification. This comprehensive assessment allows buyers to make informed decisions based on the specific qualities of the diamond.

  • Assurance of Standards: IGI and GIA are renowned for their strict adherence to industry standards and best practices. Their certifications provide an assurance that the lab-created diamond meets or exceeds these standards, ensuring that buyers receive a product of high quality and integrity.

  • Facilitating Comparisons: Certifications also serve a practical purpose by enabling buyers to compare diamonds more effectively. With detailed information about each diamond's attributes, buyers can make side-by-side comparisons and choose the gem that aligns with their preferences and priorities.

  • Resale and Appraisal Value: Diamonds with IGI or GIA certifications often have enhanced resale and appraisal value. The detailed documentation provided in the certification allows for a transparent assessment of the diamond's worth, making it easier for buyers and sellers to establish fair market values.

In conclusion, certifications from reputable gemological laboratories are a cornerstone of the lab-created diamond purchasing process. They provide buyers with a reliable means of verifying the authenticity and quality of their chosen gem, fostering a sense of confidence and trust in the transparency of the transaction.

  1. Ethical and Sustainable Sourcing: Beyond the 4Cs

In the evolving landscape of lab-created diamonds, ethical and sustainable sourcing has emerged as a paramount consideration for conscientious consumers. Beyond the traditional 4Cs—cut, color, clarity, and carat weight—the journey of a lab-created diamond from its inception to the market involves a commitment to traceability and responsible practices. Here's an in-depth exploration of the key aspects that define ethical and sustainable sourcing in the realm of lab-created diamonds:

  • Traceability: Ethical lab-created diamonds are characterized by their traceable supply chain. This means that every step of the diamond's journey, from the creation process to its arrival in the consumer's hands, is documented and transparent. Brands committed to traceability provide consumers with information about the origin of the diamonds, offering assurance that the gemstone has been produced under ethical conditions.
  • Conflict-Free Guarantee: One of the defining features of ethical lab-created diamonds is their status as conflict-free gems. Unlike natural diamonds, which have been historically associated with the risk of being linked to conflict or blood diamonds, lab-created diamonds eliminate this concern. Ethical sourcing ensures that the creation of these diamonds involves no human rights abuses or exploitative practices.
  • Environmental Impact: Sustainability is a cornerstone of ethical sourcing. Lab-created diamonds, by their very nature, have a significantly lower environmental impact compared to mined diamonds. The diamond mining process can contribute to deforestation, habitat destruction, and water pollution. In contrast, producing lab-created diamonds requires less energy and water, reducing the carbon footprint and environmental strain.
  • Social Responsibility: Brands that prioritize ethical and sustainable practices in lab-created diamond production often extend their commitment to social responsibility. This involves ensuring fair labor practices, providing safe working conditions, and contributing positively to the communities involved in the diamond creation process.
  • Certifications and Standards: The ethical credentials of lab-created diamonds are often reinforced by certifications and adherence to industry standards. Certifying bodies, such as the International Gemological Institute (IGI) and the Gemological Institute of America (GIA), may assess not only the traditional 4Cs but also the ethical and sustainable aspects of the diamond's journey.
  • Consumer Education: Ethical sourcing in lab-created diamonds is intertwined with consumer awareness. Brands committed to ethical practices often prioritize educating consumers about the significance of ethical diamonds, empowering them to make informed and socially responsible choices.

All of Ashth’s lab grown diamonds come with the promise of transparency, ethical sourcing, little to no environmental impact, affordability, and being certified according to the highest standards. We empower consumers to make an informed and conscious decision. In conclusion, ethical and sustainable sourcing goes beyond the traditional gemological characteristics, adding a layer of responsibility and transparency to the lab-created diamond industry. Consumers seeking diamonds that align with their values can prioritize brands that champion ethical practices, traceability, and environmental sustainability in the creation of these exquisite gems.

  1. Innovative Technology: Pioneering Excellence

The creation of lab-created diamonds is a testament to innovative technologies that have revolutionized the diamond industry. Pioneering excellence in this realm involves understanding the two primary methods employed in the production of lab-created diamonds: Chemical Vapor Deposition (CVD) and High-Pressure High-Temperature (HPHT). Each method brings its unique characteristics to the table, offering consumers a choice based on their preferences, values, and desired diamond qualities.

  • Chemical Vapor Deposition (CVD): CVD diamonds are formed through a process involving a carbon-rich gas, typically methane, in a controlled environment. Carbon atoms are then deposited onto a substrate, gradually crystallizing into a diamond. CVD technology is celebrated for its versatility and scalability. It caters to both industrial demands, where diamonds are used for purposes beyond gemstone creation (electronics, cutting tools, abrasives), and the gemstone market. The method allows for the creation of diamonds with minimal impurities, providing a canvas for breathtaking brilliance. Most of Ashth’s lab grown diamonds are manufactured using the CVD process. 
  • High-Pressure High-Temperature (HPHT): HPHT diamonds are created by subjecting a diamond seed to extreme pressure (5-6 GPa) and high temperature (1,400–1,500°C) environments. These conditions mimic the natural processes deep within the Earth's mantle where natural diamonds are formed. The interplay of pressure and temperature orchestrates the rearrangement of these carbon atoms, fostering diamond growth. HPHT technology offers a different artistic expression, sometimes resulting in diamonds with more inclusions. The method provides a range of hues, adding a layer of artistic possibility, especially for those seeking diamonds with enhanced natural characteristics.

Understanding the innovative technologies behind lab-created diamonds empowers consumers to make informed decisions, ensuring that their chosen diamonds align with their aesthetic preferences, ethical considerations, and the desired characteristics of these timeless gems.


As you embark on the journey of selecting the best quality lab-created diamonds, consider it not just a purchase but a conscious choice. Beyond the traditional 4Cs, delve into the ethical practices, innovative technologies, and certifications that define the brilliance of these gems. Your lab-created diamond is not just a sparkling accessory; it's a testament to a new era of responsible luxury. Choose brilliance with a purpose. Choose Ashth - “Mine. Not Mined.”