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09/142026
Single-Crystal vs Polycrystalline CVD Diamond: Process Difference Lies in Growth Logic, Not Equipment
The process difference between single crystal and polycrystalline CVD diamond lies not in equipment, but in growth logic. Single crystal and polycrystalline CVD diamond are two functional new materials with completely independent growth mechanisms, lattice structures and performance systems. Their process logic, product features and application boundaries diverge fundamentally from the very start of deposition and growth. Comparing or selecting materials without considering their underlying crys
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09/142026
From Lab-Grown Diamonds to Industrial Diamonds: Is It Time to Build an MPCVD Factory?
The lab-grown diamond industry is entering a new stage. Over the these few years, lab-grown diamonds have gradually gained wider acceptance in the jewelry market. With the development of production technology, equipment maturity and supply chain improvement, the industry is becoming more standardized and efficient. But beyond jewelry, another opportunity is attracting more attention:Industrial diamond applications.
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09/142026
Diamond‑Copper Composite: A Next‑Generation Solution for High‑Power Electronics Thermal Management
Diamond‑copper composite (DC) is an advanced metal‑matrix composite material consisting of diamond particles as the reinforcement phase and copper as the matrix, fabricated through state‑of‑the‑art composite preparation techniques. Diamond has the highest thermal conductivity of any naturally occurring material, with isotropic values ranging from 1200 to 2300 W/m·K. Copper, with a thermal conductivity of 401 W/m·K, ranks second only to silver among common metals. By combining the two, the compo
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09/142026
Mosaic Single‑Crystal Diamond: Breaking Size Limits
With an ultra‑wide bandgap of 5.47 eV, ultra‑high thermal conductivity (>2000 W/m·K), high carrier mobility (electron mobility up to 4500 cm²·V⁻¹·s⁻¹), and ultra‑high theoretical breakdown field strength (>10 MV/cm), Single‑Crystal Diamond (SCD) is an ideal candidate for next‑generation high‑power, high‑frequency and extreme‑environment electronic devices. However, both natural diamond and HPHT‑synthesized single‑crystal diamond are limited in lateral size, which greatly hinders large‑scal
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09/072026
The Real Challenge Is Not Growing Diamond. It's Scaling It.
Growing diamond in a laboratory is one thing. Producing consistent diamond at industrial scale is another. In the CVD diamond industry, we often talk about the growth rate, thermal conductivity, wafer size,single crystal plate size, MPCVD equipment performance, stable plasma ball, bigger growing substrate space when growing etc. From my perspective as a project manager in the CVD diamond industry, many customers will ask one question can you ensure the quality consistently?
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08/212026
Why Are Large-Size Single-Crystal Diamond Heat Sinks Manufactured Using a Mosaic Assembly Process?
In the packaging design of 5G RF power amplifiers, automotive VCSEL radars, high-performance AI chips, and high-power industrial lasers, large-area single-crystal diamond heat sinks measuring 35 mm or larger are an essential requirement. Most procurement and thermal design engineers ask the same question: Why do 25×25 mm single-crystal heat sinks on the market tend to use a mosaic assembly structure? This is not due to a simplification of manufacturing processes, but rather because of unavoidabl
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08/142026
What Are Treated Diamonds? From Technology, Differences to Identification
In the diamond consumer market, one question is being asked by more and more buyers: "Is the colour of this diamond natural, or has it been treated?" So what exactly is a treated diamond? How is it "treated"? And how can consumers identify and judge it?
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08/142026
The Metamorphosis of Diamond: From Jewelry to a Cornerstone of Technology—Three Key High-Tech Applications of CVD Single-Crystal Diamond Wafers
When you hear the word "diamond," what comes to mind first? Is it dazzling diamond jewelry, or the romantic vow that "a diamond is forever"? In reality, diamond is making a major breakthrough in the realms of industry and technology—demonstrating its value in a truly "hardcore" way. Thanks to its status as the hardest material in nature, its exceptional thermal conductivity, and its broad optical transparency (spanning from ultraviolet to infrared), CVD (Chemical Vapor Deposition) single-crystal
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08/052026
Vintage Trend: Champagne & Cognac Diamond Color Guide
Recently, vintage aesthetics have continued to sweep the global jewelry industry, with Victorian court styles, Edwardian vintage jewelry, and European-style vintage bridal jewelry making a comeback. Champagne-colored diamonds, with their naturally soft luster, have risen in popularity, perfectly complementing the elegant heritage of vintage jewelry. Having broken out of niche collector circles, they have taken the jewelry markets of Europe, the United States, and Southeast Asia by storm. Thanks
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08/052026
The Ultimate Guide to Diamond Testers: Everything You Need to Know About Use and Selection
A diamond tester is a portable electronic instrument that distinguishes diamonds from other materials based on differences in thermal conductivity. It is typically shaped like a thick pen or a small remote control, with a fine metal sensing probe at the tip.
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08/032026
Do Melee Diamonds Have Grading? Why Don't the Lab-Grown Melee Diamonds You Buy Come with 4C Certificates?
Many people wonder when customizing a lab-grown diamond ring or shopping for pavé-set jewelry: "The center stone comes with an IGI certificate clearly stating its color, clarity, and cut. What about the surrounding small melee diamonds? Do they have a grading?"
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04/102026
CVD Diamond Clarity: How to Avoid Inclusions That Affect Jewelry Value
After selecting a loose diamond, the setting not only determines the diamond’s security but also directly affects its perceived size. With diamonds of the same weight, choosing the right setting design can effortlessly create the surprise of “small carats making a big impact,” saving on your budget while enhancing the diamond’s quality. Among these, pavé and prong settings are the two most classic and effective ways to make a diamond appear larger. Paired with specialized designs that maximize t
