The best frame for a 30cm x 40cm piece depends on whether you want a close fit, a mat, or several frames for a gallery wall. The JCJMY 12×16 frame and Fxojyvo 12×16 frame are designed for 30x40cm art without cutting, while the JCJMY six-pack suits coordinated displays. For smaller 10×14-inch pictures, the single JCJMY frame is a straightforward option; the upsimples set is better for standard 11×14-inch prints.
| Frame | Best for | Key size option |
|---|---|---|
| JCJMY 12×16 | Uncut 30x40cm diamond art | 30x40cm without mat |
| Fxojyvo 12×16 | Two display configurations | 12×16 or 10×14 with mat |
| JCJMY Set of 6 | Matching gallery walls | 10×14-inch frames |
| JCJMY 10×14 | Single smaller print or art | 10×14-inch display |
| upsimples Set of 5 | Multi-photo arrangements | 11×14 or 8×10 with mat |
JCJMY 12×16 Frame for 30x40cm Art

This black frame is the clearest choice for displaying 30x40cm diamond art without trimming. Its listed sizing supports 30x40cm art without a mat, or 25x35cm art with a mat. It can also hold a 12×16-inch picture without a mat or a 10×14-inch picture with one.
Best for: People who want a frame sized for a 30x40cm piece and value having both matted and unmatted display options. The frame is made of lightweight plastic and uses HD plastic plexiglass instead of glass, which reduces the risk of breakage. Remove the protective film from the plexiglass before use.
Limitation: The mat option is listed for smaller 25x35cm art, so it is not the configuration to choose if you want to show a full 30x40cm piece with a mat.
Fxojyvo 12×16 Double-Size Frame

The Fxojyvo frame is designed for two picture sizes: 10×14 inches with the mat or 12×16 inches without it. Its product features also describe a fit for 30x40cm diamond art without cutting, or 25x35cm art with cutting. The black frame has a lightweight construction, an HD cover, and a mounting backboard.
Best for: Buyers who want a single frame that can display a smaller matted image or a larger unmatted piece. It is a useful alternative to the JCJMY 12×16 when the two-size setup is the priority.
Limitation: The listed mat configuration is for smaller art. Check your artwork’s exact dimensions and the product’s mounting details before choosing a mat layout.
JCJMY Set of Six 10×14 Frames

This set includes six matching black 10×14-inch frames for coordinated wall displays. The listed fit is for 10×14-inch photos and diamond art trimmed to 25x35cm. The frame opening is described as about half an inch smaller than the photo to hold it in place. Its plastic construction and HD plexiglass offer a shatter-resistant alternative to glass.
Best for: Anyone planning a gallery wall or needing several matching frames. Choose this set if you want a consistent look across multiple 10×14-inch pictures.
Limitation: The product specifies cutting 30x40cm diamond art to 25x35cm for this frame. Avoid it if you do not want to trim your artwork.
JCJMY Single 10×14 Black Frame

This single frame fits 10×14-inch pictures and is described for 30x40cm diamond painting art cut to 25x30cm. It has rotating tabs for removing the back panel and two hooks for hanging vertically or horizontally. The lightweight plastic frame uses HD plastic plexiglass in place of glass.
Best for: Buyers framing one 10×14-inch photo or a piece of art they are prepared to trim. Its two hanging orientations make it suitable for either portrait or landscape displays.
Limitation: The listing specifies cutting the diamond painting to 25x30cm, so it is not the best fit for displaying the full 30x40cm artwork uncut. Remove the plexiglass protective film for a clearer view.
upsimples Set of Five 11×14 Frames

This set of five frames is intended for 11×14-inch pictures without mats or 8×10-inch pictures with mats. The frames have a lightweight but firm build, an HD plastic cover, and spring-action backing for installation. They can be hung horizontally or vertically.
Best for: Buyers creating a multi-photo display with standard 11×14-inch prints or smaller 8×10-inch pictures behind the mats. It offers a different size format from the 10×14-inch options above.
Limitation: The listed picture sizes do not specify a fit for uncut 30x40cm art. Choose a frame explicitly listed for that dimension if preserving the full artwork is important.
Buying Guide: How to Choose a Frame for 30cm x 40cm Art
Should you choose a 12×16-inch or 10×14-inch frame?
Start with the artwork’s actual dimensions and the frame’s stated display configuration. In this selection, the 12×16-inch JCJMY and Fxojyvo frames are listed for 30x40cm art without cutting. The 10×14-inch JCJMY options require trimming diamond art, according to their product details. Do not assume that a frame’s outside size equals its visible opening.
Do you want a mat?
A mat can create a border around a smaller picture, but it changes the size of art the frame is designed to display. The Fxojyvo and JCJMY 12×16 frames list 10×14-inch pictures with a mat. Their specifications also describe smaller diamond art for matted display. Confirm the intended art size before buying.
How many frames do you need?
Choose a single frame for one print, the JCJMY six-pack for a coordinated set of 10×14-inch displays, or the upsimples five-pack for a group of 11×14-inch or matted 8×10-inch pictures. Match the set’s listed picture sizes to your prints rather than choosing by the number of frames alone.
What should you know about the frame cover?
Several listed frames use plastic plexiglass or an HD plastic cover instead of glass. This material is described as shatter-resistant, but the cover may arrive with protective film that needs removal before display. Check whether the frame supports your preferred hanging orientation and whether its listed sizing requires trimming.
Frequently Asked Questions
What frame size is listed for uncut 30x40cm diamond art?
The JCJMY and Fxojyvo 12×16-inch frames are listed for displaying 30x40cm diamond art without cutting and without a mat.
Will a 10×14-inch frame display 30x40cm art without trimming?
The JCJMY 10×14-inch listings specify trimming the diamond art. Check the particular product’s listed cut dimensions before choosing one.
Can these frames hang vertically and horizontally?
The single JCJMY 10×14 frame and the upsimples set are specifically described as supporting both orientations. Check individual product details for other models.
Do the frames use glass?
The JCJMY frames are described as using plastic plexiglass instead of glass. The other product listings describe an HD cover but do not provide the same full material detail.
Should I remove film from the frame cover?
Yes, the JCJMY listing says to remove the double-sided protective film from its plastic plexiglass before use for clearer display.