Hong Kong's leading lab-grown and synthetic diamond brand
Hong Kong Lab-Grown Diamond Specialist
Diamonds Gallery is a leading brand in Hong Kong for lab-grown and synthetic diamonds, and one of the pioneers in introducing the concept of lab-grown diamonds to the Asian market. With our deep expertise in diamond craftsmanship, relentless pursuit of quality, and strong commitment to sustainability, we strive to offer customers lab-grown diamond options that combine aesthetic value, technological prowess, and ethical consciousness.
We have a professional diamond showroom in Tsim Sha Tsui, Hong Kong, where experienced diamond consultants provide transparent, professional one-on-one lab-grown diamond appraisal and selection guidance. Every piece of diamond jewelry we sell meets gem-quality standards and comes with an IGI or GIA international authority certification.
In terms of luster, hardness, fire, and purity, our lab-grown diamonds are identical to natural diamonds—they are real diamonds, not imitations. Choosing us means not only choosing a dazzling and captivating diamond but also making a smarter choice for a sustainable future for our planet.
Exclusive loose diamond selection and matching model
The setting (mounting) and main diamond are purchased separately, allowing you to freely combine them according to your budget and create your exclusive diamond jewelry.
1. Choose your preferred setting for the stone.
Ring settings (single diamond, halo, themed designs, and more options available), as well as earring and necklace settings.
Selecting a style ->
2. Choose a cultivated diamond
Select by shape, carat, and 4C's. Each diamond comes with an IGI certificate.
Choose the Main Diamond ->
3. Set into exclusive diamond jewelry
Professionally set by skilled artisans, with complimentary engraving service.
Need help? Book an in-store consultation ->
"Lab-Grown Diamonds - Eternal and True Love"
Every choice a modern woman makes is a statement.
Embark on Your Lab-Grown Diamond Journey
#1
Asia's pioneer in lab-grown diamonds, a professional physical brand from Hong Kong
Diamonds Gallery is one of the pioneering brands that introduced lab-grown diamonds to the Asian market, and has focused on researching and promoting lab-grown diamond technology and applications for many years.
We have a professional lab-grown diamond showroom in Tsim Sha Tsui, Hong Kong, with a wide selection of diamond jewelry in stock, allowing customers to personally compare diamond grades, brilliance, and cuts. Whether for online inquiries or in-person purchases, we offer a flexible, transparent, and professional buying experience.
From diamond knowledge explanations, diamond matching, and style suggestions to custom designs, we provide truly one-stop lab-grown diamond services.
#2
International appraisal, gemstone-grade quality assurance
We carefully select lab-grown diamonds that meet gemstone-grade standards. All diamonds come with IGI or GIA international grading certificates, with clearly marked 4C grades, ensuring transparent and reliable quality.
Every lab-grown diamond at Diamonds Gallery is rigorously screened by a professional team to ensure it meets high-end jewelry standards in terms of brilliance, fire, and durability.
Our diamond jewelry is set by experienced jewelers, whose meticulous craftsmanship ensures the finished product remains secure and brilliant even after years of wear.
#3
Lab-grown diamonds: Transparent pricing, excellent value for money
Diamonds Gallery is committed to providing lab-grown and synthetic diamond jewelry with clear and transparent pricing. Customers can clearly understand how different 4C grades affect the price, avoiding unnecessary markups.
With the same budget, lab-grown diamonds allow you to choose a larger carat or a higher-grade diamond, achieving a higher cost-performance ratio without sacrificing quality, truly balancing rational consumption with long-term value.
#4
Perfect after-sales service, wear with peace of mind for years to come
Diamonds Gallery provides thoughtful and practical after-sales service to every customer, ensuring their lab-grown diamond jewelry remains as good as new:
This allows you to feel secure and worry-free after purchasing your lab-grown diamonds, enjoying professional service and quality assurance.
Buy smart, wear with peace of mind.
A lab-grown diamond is worth your time to get to know, from acquiring knowledge and selecting it yourself, to future cleaning and resizing.
Diamonds Gallery will be with you every step of the way, ensuring that every decision you make is well-informed.
Lab-Grown Diamond Knowledge Base
This in-depth yet easy-to-understand article explains the synthesis process of lab-grown diamonds, their similarities and differences with natural diamonds, their sustainability advantages, and provides tips for choosing diamond jewelry to help you become a smart buyer.
Learn more
Professional Services
Personalized engraving to add a unique mark to your diamond jewelry; ultrasonic cleaning to maintain lasting brilliance; if the ring size is incorrect, free resizing is available once within three months of purchase.
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Shopping Process
Shop online or visit us in store for a one-on-one consultation—seamless and convenient, all centered around your needs.
Learn moreThe Most Important Things You Want to Know About Lab-Grown Diamonds
Answered by the Diamonds Gallery professional team
Lab-grown diamonds are real diamonds. Lab-grown diamonds are composed of pure carbon atoms, and their crystal structure, hardness (10 on the Mohs scale), refractive index, and fire are all identical to natural diamonds. The only difference lies in their formation: natural diamonds form underground over billions of years, while lab-grown diamonds recreate the same process in a laboratory using technology. The U.S. Federal Trade Commission (FTC) revised its "Jewelry Guides" as early as 2018 to include lab-grown diamonds within the definition of "diamond."
Both have identical composition and appearance. Neither the naked eye, a magnifying glass, nor even common diamond testing pens can distinguish between them. There are only three real differences: formation method (laboratory vs. underground), price (lab-grown diamonds are significantly cheaper), and resale value (natural diamonds are higher). To accurately differentiate between the two, a professional laboratory (such as IGI, GIA) must analyze their growth characteristics using a spectrometer.
There are two main technologies: HPHT and CVD. HPHT (High-Pressure High-Temperature) recreates the extreme environment deep underground, allowing carbon to crystallize into diamonds; CVD (Chemical Vapor Deposition) uses carbon-containing gas in a vacuum chamber to deposit carbon atoms layer by layer onto a diamond seed. Both methods take several weeks, and the resulting product is also a crystallized carbon diamond. IGI certificates will specify which method was used to grow the diamond.
The IGI certificate should be the primary reference. As of October 1, 2025, GIA no longer grades lab-grown diamonds using the 4Cs for color and clarity. Instead, it uses a two-tiered quality assessment: "Premium" or "Standard." To qualify for "Premium," a diamond must be D color, VVS clarity or higher, and have Excellent polish and symmetry. IGI, on the other hand, continues to use the full 4Cs (D to Z color scale, FL to I3 clarity), providing more specific information, which is currently the industry standard for lab-grown diamonds. Each main diamond at Diamonds Gallery comes with an independent certificate, and the certificate number can be directly verified on the laboratory's official website.
At 2026 market prices, lab-grown diamonds with equivalent 4C specifications are generally 60% to 85% cheaper than natural diamonds. The actual difference depends on the carat, cut, and purchasing channel. In other words, with the same budget, you can choose a larger carat and higher clarity center stone – this is the most practical advantage of lab-grown diamonds.
