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Redleaf Jewelry - Professional Lab Grown Diamond Jewelry Manufacturers & Lab Grown Diamond Factory

Wholesale Lab-Grown Gemstone Color Chart Set 22 Colors Czochralski Corundum & Spinel Sample Kit IGI Certified Precision Cut Stones for Jewelry Design 1
Wholesale Lab-Grown Gemstone Color Chart Set 22 Colors Czochralski Corundum & Spinel Sample Kit IGI Certified Precision Cut Stones for Jewelry Design 2
Wholesale Lab-Grown Gemstone Color Chart Set 22 Colors Czochralski Corundum & Spinel Sample Kit IGI Certified Precision Cut Stones for Jewelry Design 3
Wholesale Lab-Grown Gemstone Color Chart Set 22 Colors Czochralski Corundum & Spinel Sample Kit IGI Certified Precision Cut Stones for Jewelry Design 4
Wholesale Lab-Grown Gemstone Color Chart Set 22 Colors Czochralski Corundum & Spinel Sample Kit IGI Certified Precision Cut Stones for Jewelry Design 1
Wholesale Lab-Grown Gemstone Color Chart Set 22 Colors Czochralski Corundum & Spinel Sample Kit IGI Certified Precision Cut Stones for Jewelry Design 2
Wholesale Lab-Grown Gemstone Color Chart Set 22 Colors Czochralski Corundum & Spinel Sample Kit IGI Certified Precision Cut Stones for Jewelry Design 3
Wholesale Lab-Grown Gemstone Color Chart Set 22 Colors Czochralski Corundum & Spinel Sample Kit IGI Certified Precision Cut Stones for Jewelry Design 4

Wholesale Lab-Grown Gemstone Color Chart Set 22 Colors Czochralski Corundum & Spinel Sample Kit IGI Certified Precision Cut Stones for Jewelry Design

Wholesale Lab-Grown Gemstone Color Chart Set 22 Colors Czochralski Corundum

💎 Cutting & Certification Details 

✂️ Precision Cutting:
Our lab-grown stones are expertly hand-cut to showcase superior light performance. We offer a variety of premium cuts including Emerald, Oval, Round, Pear, and Asscher to meet diverse design needs, ensuring a "mirror-like" appearance and vivid color output .

📜 Professional Certification (GRC/IGI):
Each gemstone color chart can be accompanied by professional certification from GRC (Gem Research Center) or IGI. These certificates guarantee the 4Cs (Carat, Color, Clarity, Cut) and confirm the conflict-free, sustainable nature of the lab-grown materials. For bulk orders, individualized stone certificates are available .

🌟 Why Choose Our Color Chart?

  • Ethical & Sustainable: 100% conflict-free, with a significantly lower carbon footprint than natural mining .

  • Consistent Quality: Pulled Czochralski process eliminates inclusions found in natural stones, ensuring uniform color and purity .

  • Factory Direct Wholesale: Our factory has been specializing in gemstones for over 20 years, ensuring competitive B2B pricing .

  • Customization: We provide OEM/ODM services; customize your own color charts with 4A/5A grade stones or specific color tones .

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    Product Introduction 

    Included Colors (22): Pink, Sakura, Sunrise, Red Lotus, Sunset Red, Sunset Orange, Orange, Yellow, Green, Columbia, Zambian, Paraiba Green, Paraiba Blue, Aquamarine, Cornflower, Cobalt Spinel, Royal Blue, Purplish Blue, Purple Red, Hot Pink, Rubellite, Ruby, Pigeon Blood


    Stone Type: 100% Lab-Grown Corundum (Sapphire/Ruby) & Spinel


    Growth Method: Czochralski (Pulled) Method for superior quality and clarity


    Available Sizes: Standard 5x7mm (Total approx. 24.5ct) or 6x8mm (Total approx. 37ct)


    Shape: Oval Cut / Popular shapes available upon request


    Cut Quality: Excellent Step/Brilliant cut, hand-finished for maximum brilliance


    Package: High-grade acrylic display board with metal frame


    Certification: GRC / IGI / Third-party certificates available upon request

    Product Features

    💎 Cutting & Certification Details 

    ✂️ Precision Cutting:
    Our lab-grown stones are expertly hand-cut to showcase superior light performance. We offer a variety of premium cuts including Emerald, Oval, Round, Pear, and Asscher to meet diverse design needs, ensuring a "mirror-like" appearance and vivid color output .

    📜 Professional Certification (GRC/IGI):
    Each gemstone color chart can be accompanied by professional certification from GRC (Gem Research Center) or IGI. These certificates guarantee the 4Cs (Carat, Color, Clarity, Cut) and confirm the conflict-free, sustainable nature of the lab-grown materials. For bulk orders, individualized stone certificates are available .

    🌟 Why Choose Our Color Chart?

    • Ethical & Sustainable: 100% conflict-free, with a significantly lower carbon footprint than natural mining .

    • Consistent Quality: Pulled Czochralski process eliminates inclusions found in natural stones, ensuring uniform color and purity .

    • Factory Direct Wholesale: Our factory has been specializing in gemstones for over 20 years, ensuring competitive B2B pricing .

    • Customization: We provide OEM/ODM services; customize your own color charts with 4A/5A grade stones or specific color tones .

    FAQ

    1
    ARE YOU FACTORY?
    YES! We are factory and our factory is located in Wuzhou City, Guangxi, China. Wuzhou City is known as the World's Capital of Synthetic Gemstone. Welcome to visit us!
    2
    WHAT'S YOUR MINIMUM ORDER QUANTITY (MOQ) AND SAMPLE ORDER?
    No MOQ, and welcome to place sample orders. We also provide free sample order if we have in stock, then you just need to pay the freight.
    3
    WHAT'S YOUR PAYMENT METHODS?
    Payment methods: T/T, Western Union, Cash and PayPal(PayPal is accepted for sample order)is perfect!
    4
    HOW ABOUT YOUR AFTER-SERVICE?
    EXCHANGE & REFUND : 1) The gems are not your order. 2) The quality is not as good as what we promised. 3) The color, shape and size is not the same as sample, including quantity is not your request. 4) Within 7 days from the time you receive the goods. Dear customers, once you decide to buy our products, please tell us the details of the product you are looking for, including materials, shapes, sizes, color, quantity and your thought. You can find this guy for any questions, and she will give you a response.
    Get in touch with us
    just leave your email or phone number in the contact form so we can send you a free quote for our wide range of designs
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