Asian Gemmological Institute And Laboratory Limited

This is the material for the DGA gemmological diploma course. The course we organized is a gem diamond diploma originated from England. We have translated the whole set of lecture notes into Chinese version for the better absorption of the course takers. 	 Original notes in English version available 	 Also the translated Chinese version 	 Takers can accquire the DGA diploma level in Hong Kong  

DGA Gemmological Diploma Course

Amontre (Asia) Watch Industry Co., Ltd.

SOURCING ENGINEERING SUPPORT  Amontre bridges the gap between creative vision and technical reality.Design drawing feasibility analysis (water/shock resistance structural adaptation).Prototype trial production &amp; tolerance calibration based on your 2D/3D/STL files. 

OEM ENGINEERING & MANUFATURING SUPPORT

Yongjun Trading (Hong Kong) Co., Limited

OEM manufacture factory 

Leconcepts Holdings Co Ltd

     We are an experienced manufacturer which is good at produce plastic goods with fine paintings.   Some of our productions are sold in the museums and heritages.   Services include hand painting, spray painting, tempo painting and so on.   We an OEM company which is strong in developing customers' ideas/concepts in the production.   We have steady cooperation with many brands and designers for product development.   Fully comply with the international safety requirements, if any.   More photos and samples can be available upon request from qualified buyers.    

Facilities - Painting Equipment

Pollux Enterprise Ltd

 	  Qingdao  has long been one of the  most important manufacturing base  of costume jewellery and fashion jewellery in the Northern part of China.&nbsp; In addition to the&nbsp;high concentration of factories run by Koreans, there are also&nbsp;numerous&nbsp;domestic Chinese factories. 	 Qingdao is also famous for fashion accessories items, such as belts, bags and hats 	 Established in Hong Kong  since 1999,  we offer our service as  sourcing agent  for customers who want to buy from this area with ease, effectiveness and efficiency.&nbsp; 	 We perform  pre-screening of&nbsp;qualified factories , plan and organize&nbsp;buying trips, follow up with site orders and&nbsp;take care of&nbsp;all the logistics. 	 Our experienced QC staff stationed in China will carry out quality inspection prior to goods dispatch 	 you can  consolidate shipment  with purchases from other parts of China e.g. Zhejiang Yiwu and Guangdong. 	 With our dedicated and professional service, you can concentrate on building up your seasonal collections through one standardized channel, instead of spending time on the routines of dealing with individual factories.&nbsp;&nbsp; 	 Our service commission&nbsp;is based on a pre-agreed percentage&nbsp;of shipment value, which is simple and straight-forward, and&nbsp;without any&nbsp;hidden costs.  

Buying Agent for Sourcing Jewellery Items from Qingdao

Moiseikin International Limited

We specialize in creative and innovative designs for jewelries and objects, which we believe we can make attractive designs as well as elegant commercial designs for your customers and shop. Our engineer will control even perfect manufacturing process to finish jewelries as well as jewelry frames so that you can just set your own central stones in your country. If you check our award profile, you may understand our specialty in this field. Please do not hesitate to inquire if you have some question. 

Jewelry and Collection Design

Team Tech Development Limited

Tooling Making At Team Tech Development Limited, we specialize in the design and manufacture of a wide variety of high-quality plastic injection moulds. Our tooling solutions cater to injection molding machines with press capacities ranging from 50 tons to 1000 tons, ensuring flexibility and suitability for different project requirements and product complexities.  Our experienced engineering team utilizes the latest CAD/CAM software and advanced manufacturing technologies to guarantee precision and efficiency in every stage of the mould making process, from initial design and prototyping to final testing and validation. We maintain rigorous quality control throughout production, ensuring that every mould meets stringent international standards and exceeds customer expectations in terms of durability, performance, and cycle life.  We offer a comprehensive range of tooling solutions, including: (A) Prototype Tooling – Designed for small volume production runs (1K–10K units), enabling rapid product development and market testing with reduced lead times and costs. (B) Pre-hardened Tooling – Suitable for medium volume production (50K–250K units). These moulds provide a balance of strength and cost-effectiveness, supporting efficient mid-level manufacturing demands. (C) Tooling – Engineered for high-volume manufacturing (250K–1,000K units), utilizing highly durable materials and advanced heat treatment processes to ensure exceptional mould longevity and consistent product quality in mass production. (D) Over-Mould (Two-Color Moulds) – Expertise in multi-material and multi-color injection moulding techniques, allowing for the integration of different materials or colors in a single product to enhance functionality and aesthetics. (E) Hot Tip and Hot Runner Moulds – Application of advanced hot runner technologies to achieve improved injection efficiency, precise temperature control, and minimized material waste, ideally suited for complex or multi-cavity mould designs. (F) Gas Assisted Injection Process and Die-Cast Moulds – Utilizing gas assisted injection moulding and die-casting expertise to produce lightweight, complex, and dimensionally stable parts with excellent surface finishes.  Team Tech Development Limited’s comprehensive tooling capabilities, commitment to innovation, and customer-focused approach make us a trusted partner for clients across diverse industries, delivering high-precision and cost-effective moulding solutions tailored to our customers’ specific needs.   

Plastic & metal Tooling and Molding Making

Pantene Industrial Co Limited

 	 An Established designer, developer and manufacturer of high quality products and services to its OEM and electronics industrial partners.&nbsp; 	 We have rich experience in EMS manufacturing service including design, engineering solutions and service world&rsquo;s famous brands for years. Also, highly sophisticated vertical integration provides one-stop manufacturing service from product design to mass production.  

OEM/EMS Product Design Service 

Hong Kong Jewellery & Jade Mfrs Association

We provide jewellery testing services for jewellery dealers and the general public. The identification services are especially useful for distinguishing jade stones of type A and type B or even faux jade. Optical and chemical testing methods will be processed for accurate laboratory testings.
    Professional laboratory services  Protect the buyers and the general public  Certificates can be provided  

Jade and Stone Laboratory Services

 	  Guangdong  is China&#39;s  major manufacturing base  in the southern part of China.&nbsp;  Dongguan  is famous for costume jewelry and fashion accessories,&nbsp;  Huadu  is renowned for PU bags and belts, and plastic hair ornament, and there are suppliers for virtually every industrial category in different parts of Guangdong. 	 Established in Hong Kong since 1999, we offer our service as buying agent for customers who look to  simplify and upgrade their buying processes  from this area.&nbsp; You can concentrate on building up your seasonal collections instead of spending time on the routines of dealing with individual factories. 	 With&nbsp;our geographical advantage and Western mindset, we are able to take care of your  complete buying process  effectively, from supplier research, factory screening, buying trip planning, site order handling to all post-order logistics management. 	  You can consolidate shipment from different suppliers,&nbsp; meaning valuable flexibility in quantities and varieties.&nbsp; We will take care of all consolidation, packaging, loading and shipping matters. 	 We have extensive experience in a large range of consumer goods, light industrial goods, electronics and household items.  

Sourcing Agent for Buying from Dongguan and Guangzhou

AGIL provides professional gem-testing services to the trade sector and general public. We own 37 years of gem testing experience. We also possess in-house advanced instruments including DTC DiamondSureTM, cathodoluminescence, FTIR infrared spectrometer, Raman spectrometer, Sarin DiaMension, UV-Vis spectrometer and X-ray fluorescence analysis. 	 Jadeite jade (Fei Cui) testing. 	 Ruby, sapphire and emerald testing. 	 Diamond testing and diamond grading.  

Onsite Gem-Testing Service

ATR Manufacturing Ltd

We provide EMS solution. Our service includes OEM, OBM and ODM manufacturing. Our product experience includes Medical and Healthcare Equipment, Electric Appliance Control Units, Hospital Equipment, Temperature Monitoring Devices, Deodorizer, Light Tube, Safety and Security Equipment, Assistive Hearing Devices, Communication Equipment, Pest Control Units, Currency Handling Devices and PCB Assemblies. Our existing manufacturing plant is in Dongguan, China. We will have a new plant in Vietnam starting for Production by January 2020 at Phase-1; the Phase-2 facilities will be scheduled completion by end 2020.

OEM / ODM / EMS Manufacturing

RESEARCH AND SOURCING  We pioneer coatings, treatment and material sourcing to guarantee flawless, on-time delivery. Integrated global supply chain reducing component/finished watch procurement costs by 5%-30% (bench-marked per project). 

OEM RESEARCH & SOURCING

A And P Productions Ltd

we can provide one stop service from OEM and sourcing items under our customer need. please contact us for more information 

 we can provide your own design and OEM project or sourcing business for our customer 

TianJin Minghang Beauty Dazzling Jewelry Co Ltd

ODM service, can offer jewelry design service 

Jewelry Design

CREATIVITY AND AMBITION   Our creative team develops original watch concepts across modern classics, premium timepieces, jewelry watches, and professional diver’s instruments. From initial sketches to production-ready designs, we deliver tailored ONE-STEP solutions for your market. 

ODM PRODUCT DESIGN

OKLAB LIMITED

OKLab Limited is a passionate and experienced product development and manufacturing company. With offices in Hong Kong and Dongguan, China, and a factory in Dongguan, we offer expert product design and project management services tailored to your needs. Our team has over 25 years of product design experience and 30 years of production and project management experience. We strive to exceed your expectations by providing innovative solutions, exceptional quality, and outstanding customer service. Let us turn your ideas into successful products! Need more information? Reach out to us 

Product Design & Development 

Gordon C & Co Ltd

ENGINEERING ELEGANCEGordon C offers a one-stop solution to transform ideas into reality, seamlessly. Our engineers take ideas from intricate 2D, 3D, and STL drawings to the prototyping stage in a rapid fashion. 

OEM ENGINEERING SUPPORT

This shows the gemstone certitication services provided by Asian Gemmological Institute And Laboratory. We grade the gemstones with objective laboratory equipments. The results is presented in the form of a certificate. 	 At this time, we support gradings of jade and diamond 	 The grading system may includes other kinds of gems in the future. 	 Comprehensive grading report on the carat, colour, clarity and cut  

Gemstone Certitication Services

Antika Co Ltd

About Us Our fine jewelry collection represents the memoir of antique &amp; jewelry We proudly present our designs from each of our collections. Our Creation We offer all clients around the world with various type of service. Please do not hesitate to tell us what you need. Looking for Mounting? All sizes available. Perfectly Compliment your stone.  Any designs you like,Any center size you have,we can get it for you! We sell not only finished goods but also can supply you as SEMI-MOUNTING for rings or earrings to set with your diamond or color stones.  Please contact us 

SEMI-MOUNTING for Rings or Earrings or Pendant

Maanshan Brightness Lighting CO LTD

We have a professional design department that can customize products according to individual needs. Each product will be designed, customized and modeled based on your requirements. At the same time, the structural design of the product is convenient for installation and disassembly, making it easy for you to install, transport, disassemble and store. Thus, it can provide various cost savings for customers in multiple aspects. All products will be checked with customers from multiple aspects such as renderings and structural diagrams to ensure they meet your most satisfactory requirements.  If you want to know more about our products and services, please feel free to contact us. 

Design and Customization Services

Shiny Crafted Metal Manufacturing Company

Market-Driven Jewelry R&amp;D: From Brand Customization to Precision Mass ProductionService Overview:Move beyond generic manufacturing—partner with a team that understands what sells. We are more than a factory; we are your Brand R&amp;D Partner. We offer a high-efficiency, one-stop solution that merges acute market intuition with master-level expertise in rare materials. Our philosophy is simple: we create designs that aren't just aesthetically pleasing, but commercially successful. Our Core Commercial Value:Market-Proven Design Team: Our designers prioritize commercial trends over abstract art. We specialize in deep customization based on your Brand Identity, ensuring every piece aligns with current market demand and consumer psychology. Commercializing Rare Materials: We are among the elite few capable of mass-producing high-quality jewelry using Genuine Meteorite, Damascus Steel, and Forged Carbon Fiber. We turn these "exotic" materials into scalable, high-margin bestsellers. Original IP &amp; Technical Moats: We offer exclusive, factory-original designs including proprietary magnetic clasp structures and unique surface etching techniques. Choosing us gives your brand a unique competitive edge that cannot be easily replicated. Seamless One-Stop Execution: Our "End-to-End" service is designed to completely lift the operational weight off your shoulders. From brand-specific concept development and 3D modeling to mold making and final production, everything is handled in-house. You provide the vision; we deliver the reality. Comprehensive Service Scope:Brand-Oriented R&amp;D: Deep analysis of your target audience to develop exclusive annual or seasonal collections. High-Performance Material Processing: Solving industry pain points such as meteorite rust-proofing, Damascus pattern control, and precision carbon fiber machining. Advanced Engineering Translation: Converting complex concepts into ergonomic, durable, and production-ready structures. Hybrid Craftsmanship: Combining high-precision CNC machining with traditional hand-polishing to meet the standards of the luxury market. We don’t just talk about art; we focus on how original design and rare craftsmanship can increase your brand’s premium and market share. 

Market-Driven Jewelry R&D: From Brand Customization to Precision Mass Production

Sun Flame Co Ltd

We have workshop in Tokyo. We have been assembling Made in Japan watch. Also, we have some inspection testing. We can water proof test for 10BAR. 

Water resistant inspection

Surface Mount Technology Ltd

 This high-tech machine is designed for advanced pick-and-place and bonding technology. It supports chip mount&nbsp;with the minimum size of 0201 and IC mount with fine pitch in 0.3mm of QFP. The BGA or micro BGA has a diameter of 0.4mm with a 0.8mm pitch or a diameter of 0.3mm ball with 0.5mm pitch CSP. 
 
  Flip Chip Bonding: ACF, C4 and C5 Technology. 
  Aluminum wire bonding. 
 

My Sourcing