Drop Signature Series Gemstone Keyboards
4 Gems for Every Enthusiast
Some people collect gemstones. Some collect keyboards. In this special Signature Series collection, we’re doing both. Meet the Drop Signature Series Gemstone Keyboards: four compact typing gems, cut and configured to perfection. Choose from four uniformly colorful builds, each representing a gemstone—starting with our recently released blue Sapphire Keyboard, and now including the green Emerald Keyboard, purple Amethyst Keyboard, and red Garnet Keyboard. Like nearly all gemstones, these builds are quite compact, constructed around our CSTM65 core with magnetically detachable cases corresponding to their gemstone colors. Of course, each board also comes equipped with its namesake DCX keycap set to complete the color coordination. Alongside these aesthetic accessories, you’ll find an entire treasure trove’s worth of high-quality components—including linear Gateron Yellow KS-3 Switches, interchangeable polycarbonate weights and switch plates, and a full array of typing foam. It’s time to hit the gem—your fingertips will thank you.











Our Signature: Quality You Can Feel
To truly understand the benefits of a Signature Series mechanical keyboard, you have to feel it. The first thing you’ll notice about our Gemstone Keyboards is their feel. At its core, that feel starts with the polycarbonate inner case, full array of typing foam, and easily customizable gasket components. Of course, the customization doesn’t stop there. As part of our CSTM family, these keyboards are specially constructed to accommodate our full selection of magnetically detachable decorative top cases for seamless personalization in seconds. Within these cases, they contain some of the community’s finest components—Gateron Yellow KS-3 Switches, paired with Gateron’s own PCBA-mounted stabilizers—to deliver ultra-smooth linear travel. Also on board are hot-swappable switch sockets, easily interchangeable polycarbonate weights and switch plates, and full array of RGB lighting. You have your favorite color—now get it on your favorite keyboard.













Color

Amethyst
Emerald
Garnet
Sapphire
Specs
- Drop
- Layout: 65%
- 67 keys
- Case material: Polycarbonate
- Magnetic decorative top case: Drop CSTM80 Decorative Top Case: Sapphire, Emerald, Amethyst, or Garnet
- Decorative top case material: Polycarbonate
- Plate material: Polycarbonate
- Case and switch foam: PORON case foam, PORON plate foam IXPE switch foam, silicone bottom case patch and gasket layer
- Gasket-mounted with removable gaskets
- Keycap profile: DCX
- Keycap material: Doubleshot ABS
- Switches: Gateron Yellow KS-3 Switches (linear)
- Hot-swappable switch sockets
- 5-pin switch support
- Stabilizers: Gateron PCBA-mounted stabilizers (screw-in)
- Per-key RGB LED lighting
- South-facing RGB LEDs
- 14.7 x 5.8 x 1.3 in (37.4 x 14.8 x 3.4 cm)
- QMK, VIA, and Vial compatible
Included
- USB-A to USB-C cable
- Keycap puller
- Switch puller
- Drop 2-Year Standard Warranty
RETURNS—NO QUESTIONS ASKED
We get it. Sometimes what you ordered just doesn’t work out. If that’s the case for you, don’t fret! All customers (both US and international) may return this item in new, unused condition within 30 days of delivery.
Shipping
Estimated ship date is Feb 5, 2026 PT.
Payment will be collected at checkout. Cancellations are accepted up to 2 hours after checkout for in-stock items, or up until pre-order ships.

































