We ensure that each diamond is meticulously bagged, providing clear labeling and sorting.
For watch manufacturers, we offer complete kitting services, meticulously assorting diamonds for watch dials and bezels.
Our one-time delivery service ensures that you receive your diamonds exactly when you need them.
MM SIZE
We ensure that each diamond is meticulously bagged, providing clear labeling and sorting. Our precision bagging services make it easy for designers and manufacturers to manage and organize their diamonds efficiently.
Advanced Laboratory Testing: All gems are 100% natural and carefully examined by expert engineers using high-precision technology, guaranteeing authenticity and unparalleled quality for our clients.


Bagging & Kitting
For watch manufacturers, we offer complete kitting services, meticulously assorting diamonds for watch dials and bezels. With a one-time delivery system, we ensure that your diamonds are delivered in a single, well-organized kit tailored to your specifications.
Custom Assortments
We understand that each design is unique. That’s why we offer customizable assortments of diamonds in sizes as small as 0.05mm tailored to your specific needs. Whether you need specific cuts, colors, or clarity, we will create an assortment just for you.


On-Time Delivery
Our one-time delivery service ensures that you receive your diamonds exactly when you need them. We coordinate everything from sourcing to sorting so you can focus on designing and manufacturing.
Goods
Availability Chart
Size Range
Case & Crystal Specifications
Ordering with JS Diamond is a seamless experience
Tailored for Brands & Manufacturers
Contact Us
Get in touch with our team via email or phone to discuss your diamond requirements.
Customization
Share your specifications, such as diamond size, color, cut, and any custom requests (e.g., matching pairs, kitting, custom assortments).
Approval
Once we finalize the assortment, we will send you a detailed proposal for your approval.
Delivery
We will arrange for a one-time delivery, ensuring your diamonds are packaged and shipped safely.