Our Stones Authenticity

Experience Black Diamonds- New York: Where Love Meets Luminescence

Fall in love with the exquisite fire of our luminous, ethically sourced diamonds. We invite you to indulge in the timeless beauty of handcrafted jewelry, always with the environment in mind. By using only ethically sourced materials, we ensure your piece beautifully reflects your values. At Black Diamonds- New York, our mission is to bring you the highest quality jewelry at an accessible price point, truly making luxury attainable. Each handcrafted masterpiece symbolizes the enduring power of love—find the perfect piece to celebrate your forever or express your unique love story in a dazzling way.

Our Dazzling Stone Collection

We offer a curated selection of exceptional stones, each with unique characteristics and brilliance.

Natural Diamonds

These are the Earth's oldest treasures, formed over billions of years deep within the mantle under extreme pressure and heat. Composed entirely of carbon, their unparalleled hardness makes them forever resilient. Our Natural Diamonds are certified by leading global authorities like GIA, IGL, EGL, or DGI, guaranteeing their authenticity and quality. Their ability to interact with light creates a mesmerizing sparkle and fire that has captivated for centuries.

  • Passes Diamond Test: Absolutely, Heck YES!
  • Certified: Yes. Clear stones 0.50 ct and up come with a GIA certificate. (Note: Black Diamonds typically do not come with a certificate.)
  • Stone Comparison: The ultimate benchmark for all other diamonds.

Premium CVD Lab-Grown Diamonds (Chemical Vapor Deposition Lab-Grown)

These are authentic diamonds, grown in a controlled laboratory setting. They possess the same physical and chemical makeup as mined diamonds, composed of pure crystalline carbon. Our unique CVD process ensures they look precisely like natural diamonds. Our Premium CVD Lab-grown Diamonds confidently pass the diamond test and are available for stone upgrades at a premium cost.

  • Passes Diamond Test: Yes.
  • Certified: Yes. Stones 0.50 ct and up come with a certificate of authenticity.
  • Stone Comparison: A top-tier quality lab-grown diamond.

HPHT Lab-Grown Diamonds (High Pressure High Temperature Lab-Grown)

These are genuine lab-grown diamonds created by replicating Earth's extreme conditions. A small diamond seed is subjected to immense heat (up to 1600°C) and pressure (over 870,000 psi), bonding carbon atoms to form a larger diamond crystal. While typically yellow or brown, they can also be colorless. HPHT diamonds are highly durable and virtually indistinguishable from mined diamonds in physical, chemical, and optical properties.

  • Passes Diamond Test: Yes.
  • Certified: Yes. Stones 0.50 ct and up come with an IGI certificate.
  • Stone Comparison: A top-tier quality lab-grown diamond.

Certified Moissanite

A stunning, near-colorless gemstone composed of silicon carbide, a naturally rare mineral. Moissanite often exhibits more fire (rainbow flashes) than diamonds due to its unique refractive index (2.65 vs. diamond's 2.42), making it incredibly brilliant. With a hardness of 9.25 on the Mohs scale, it's highly durable for daily wear. Black Diamonds- New York Moissanite is D-F color with VS1 Clarity, and is certified by the Global Gemstone Research Association (GRA) with a unique girdle code. It's among the hardest minerals on Earth, surpassing sapphire, ruby, or emerald in durability.

Our Moissanite gems consistently pass our advanced diamond tester and on common handheld tester, showcasing their exceptional thermal and electrical properties. Please note that while Moissanite excels in these tests, a local jeweler using specialized equipment for natural diamond identification may differentiate it based on subtle electrical conductivity unique to Moissanite.

  • Passes Diamond Test: Yes, using our special diamond tester and on common handheld testers.
  • Certified: Yes. Stones 0.50 ct and up come with a certificate of authenticity (except for custom-cut diamonds like coffin, kite, hexagon, etc., where certificates are available upon request before shipping).
  • Stone Comparison: Certified Moissanite, Lab-Grown Moissanite.

BDNY Gemstones (Lab-Grown Gems)

Meticulously crafted for high clarity and brilliance. These stones are part of our EVN series. While these gemstones are not natural diamonds, they are an excellent, cost-effective alternative. Please be aware that while selected stones will pass, we do not guarantee they will pass all diamond tests. A local jeweler using specialized equipment for natural diamond identification may differentiate these stones based on their subtle, unique electrical conductivity.

Budget-Friendly Sparkles 

  • BDNY Diamond Alternative: These are beautiful, engineered stones. Made from zirconium dioxide, they offer fine color, no color mixing, exceptional brilliance, and a superb cut. While these are not natural diamonds, they are truly a stunning duplication of nature's beauty. Perfect for everyday wear, they provide the sparkle and beauty of a diamond at a fraction of the cost.

    • Passes Diamond Test: No. (These are diamond imitators.)
    • Certified: No.
    • Stone Comparison: Falls between high-quality zirconium and sapphire.

  • Simulated Diamonds: Meticulously crafted in a lab, these stunning stones boast an exceptional cut, maximizing their sparkle and fire. Crafted from high-quality materials and polished with the same diamond polishing wheels used for natural diamonds. Our older stones, which were previously called Created Diamonds, are also diamond simulants and will not pass a diamond test.

    • Passes Diamond Test: No. (These are diamond imitators.)
    • Certified: No.
    • Stone Comparison: More like high-quality sapphire, but with superior brilliance.
  • EVN Series: Please note that older series of EVN stones may vary in composition and might not consistently pass all types of diamond tests. This gemstone provides exceptional sparkle and beauty as a diamond alternative.

Key Takeaway: Your Perfect Stone Choice

Natural Diamonds and Certified Lab-Grown Diamonds offer lasting beauty and potential investment value. For those prioritizing affordability and instant brilliance, Moissanite, BDNY Diamond Alternative, Created Diamonds, and Simulated Diamonds provide a beautiful, budget-friendly alternative.

Certificates

To protect your privacy and ensure security, we do not store copies of certificates. Original certificates are included with your shipment. If you need a copy for your records, please request it when placing your order or contact our customer support team before your order ships, as certificates can only be generated when we have the product on hand.

Natural Gemstones & Crystals

We proudly offer a vibrant selection of natural gemstones, including Amethyst, Citrine, Garnet, Ruby, Sapphire, Emerald, Morganite, Peridot, Topaz, Aquamarine, Rose Quartz, Tourmaline, and many more.

Stone & Jewelry Upgrades

Don't see exactly what you need? No worries, we've got you covered! All our jewelry can be upgraded for a higher value based on:

  • Metal Type: 10k-18k white, yellow, or rose gold, and platinum.
  • Metal Plating: Platinum, yellow gold, and rose gold.
  • Stone Types (that pass diamond test): Natural Diamonds, Moissanite, HPHT Lab-grown Diamonds, and Premium CVD Lab-grown Diamonds.
  • Stone Carats: Available from 1-4 carats.
  • Stone Color: Any color is available for free, but please contact us first.
  • Complimentary Engraving: Yes, it's free!

Please contact our team to get a personalized quote. We can make ANY of your dream rings a reality!