Choosing cremation jewelry is a deeply personal decision. For many people, it is not just about finding a beautiful necklace, ring, bracelet, bead, or keepsake. It is about finding a way to keep someone they love close in a form that feels safe, meaningful, and lasting.
As you begin looking at memorial jewelry, you may notice that cremation ashes can be preserved in several different ways. Some pieces are made with resin. Some are hollow and designed to hold ashes inside a small urn-style chamber. Some memorial options use hair or cremated remains in a specialized gemstone process. Others, like the pieces we create at Locked in Art, are made with ashes permanently encased in handcrafted glass.
Each option can hold deep meaning, but they are not made the same way. The materials, process, appearance, durability, and overall feel can be very different.
This guide explains the differences between glass cremation jewelry, resin cremation jewelry, urn necklaces, and memorial diamonds so you can better understand your options before choosing a piece in memory of someone you love.

What Are the Main Types of Cremation Jewelry?
Cremation jewelry is a broad term for jewelry or keepsakes made to hold, preserve, or incorporate a small amount of cremation ash. Some designs keep the ashes hidden inside the piece, while others make the ashes part of the visible design.
The most common types include:
- Resin cremation jewelry
- Glass cremation jewelry
- Urn necklaces and hollow keepsake jewelry
- Memorial diamonds
Some people are drawn to a piece because of how it looks. Others are more focused on how the ashes are protected. Some want the ashes visible, while others prefer them hidden. There is no one right answer. The best choice is the one that feels most comforting and meaningful to you.
What Is Resin Cremation Jewelry?
Resin cremation jewelry is made using a liquid resin that hardens as it cures. Cremation ashes may be mixed directly into the resin, placed beneath a resin layer, or arranged with other small inclusions depending on the design.
Resin can be used to create lightweight memorial jewelry. Some resin pieces include cremation ashes, dried flowers, hair, pigments, glitter, or other meaningful materials. Because resin begins as a liquid, it can be poured into many molds and styles.
For some families, resin jewelry can be a meaningful option, especially when they want to include several keepsake elements in one design.
However, resin is a plastic-based material, and its long-term appearance can vary. Depending on the quality of the resin and how the jewelry is worn, resin may be more affected by sunlight, heat, moisture, perfumes, lotions, and daily wear. Over time, some resin pieces may yellow, scratch, dull, soften, become cloudy, or loosen from their setting depending on the materials and construction.
This does not mean resin is never meaningful. It simply means it is important to understand what the material is and how it may age before choosing it for something as irreplaceable as cremation ashes.

What Is Glass Cremation Jewelry?
Glass cremation jewelry is created through heat, flame, and hand shaping. Instead of pouring a liquid material into a mold, the glass is worked while molten and shaped by hand.
At Locked in Art, we use borosilicate glass, a strong and durable glass known for its clarity, depth, and beautiful light reflection. During the process, a small amount of cremation ash is carefully introduced into the molten glass. The ashes become permanently encased within the glass itself.
This creates a memorial piece where the ashes are not simply sealed under a surface or hidden inside a chamber. They become part of the glass design.
Each piece is made individually, so no two memorials will ever look exactly the same. The ashes, glass color, flame, and shaping process all come together to create natural patterns, soft flecks, and quiet movement inside the glass.
Glass cremation art can be made in many forms, including beads, cabochon necklaces, rings, bracelets, earrings, marbles, and memory stones. Some designs are made to be worn every day, while others are created as keepsakes to hold, display, or keep in a special place.

Glass vs Resin Cremation Jewelry: What Is the Difference?
The biggest difference between glass and resin cremation jewelry is how the ashes are preserved.
In resin jewelry, ashes are usually mixed into or sealed beneath a cured resin material. In glass cremation jewelry, ashes are encased within molten glass and become part of the finished glass itself.
Resin can offer a wide range of colors and inclusions, but it may be more vulnerable to yellowing, scratching, dulling, or clouding over time. Glass has a different kind of permanence. Borosilicate glass does not yellow or continue curing as it ages, and the ashes remain sealed inside the glass.
The appearance is also different. Resin often has a smooth, poured look, while glass has depth, light reflection, and a more organic feel. Cremation ashes in glass may appear to float, swirl, or rest in soft flecks within the piece.
For many people, glass feels comforting because the ashes are visible but protected. They are not loose, not refillable, and not sitting beneath a surface layer. They are held within the glass itself.
Neither option is emotionally “better” for every person. The right choice depends on what you are drawn to, how you plan to wear the piece, and what kind of memorial feels most lasting and meaningful to you.
How Do Cremation Ashes Look in Glass?
Cremation ashes usually appear as soft white, gray, or slightly darker flecks within the glass. Their appearance can vary naturally depending on the ashes themselves and the color of glass selected.
Some ashes create a delicate, snowy appearance. Others may look more smoky, earthy, or subtle. This natural variation is part of what makes each piece personal.
In some cases, tiny flecks of red, rust, or warm earthy color may also appear in the glass. These color variations can happen naturally in cremated remains and may be related to trace minerals or metals present during the cremation process, such as dental work, medical implants, or other materials exposed to high heat. These subtle differences are normal and are part of what makes each memorial piece unique.
The ashes are visible, but protected. They become part of the visual character of the glass rather than being hidden away. Depending on the design and color chosen, the finished piece may feel peaceful, celestial, vibrant, earthy, soft, or understated.
Because each loved one or pet’s ashes are unique, every finished memorial has its own look. Even when two people choose the same design and same glass color, the final pieces will have differences in pattern, depth, and movement.
Is Glass Cremation Jewelry Permanent?
One of the reasons we choose glass is because of its permanence.
In our glass cremation jewelry, ashes are not placed in a hollow chamber that can be opened or refilled. They are not sealed beneath a temporary surface layer. They are encased within the glass itself.
This means the ashes cannot spill out during normal wear, and the glass does not need to be refilled or resealed.
Like all fine jewelry, glass cremation jewelry should still be handled with care. It should be protected from hard impacts, harsh chemicals, and rough treatment. Sterling silver and gold settings may also need normal jewelry care over time. But the glass itself is a lasting material designed to hold the ashes safely within it.
For many families, that permanence brings peace of mind. The ashes are not just stored inside the jewelry. They are transformed into a lasting piece of glass art.
What Is an Urn Necklace?
An urn necklace is a type of cremation jewelry with a small hollow chamber inside the pendant. A small amount of ash is placed into the chamber, usually through a tiny opening secured with a screw, threaded cap, or adhesive.
Urn necklaces can be meaningful for people who want to fill the jewelry themselves or prefer the ashes to remain hidden. They act more like a tiny vessel, holding a small portion of ashes inside the pendant.
Glass cremation jewelry is different because the ashes are part of the visible design. They are encased within the glass itself, where they cannot shift, spill, or need refilling.
An urn necklace holds ashes inside a hidden compartment. A glass memorial piece becomes wearable glass art made with the ashes inside.
What Are Memorial Diamonds?
Memorial diamonds are another option some families consider, but they are very different from resin, urn, or glass cremation jewelry.
Memorial diamonds are created through a specialized process that uses carbon associated with cremated remains or hair to grow a diamond-like gemstone. They can be beautiful and symbolic, but they are usually a much more involved process with a different timeline, price point, and final look.
For someone who wants a gemstone-style memorial, a memorial diamond may feel meaningful. For someone who wants ashes visibly included in the design, glass cremation jewelry may feel more personal and connected to the original material.
Memorial diamonds are typically chosen by people who want a traditional gemstone appearance. Glass cremation jewelry is often chosen by people who want the ashes to remain visibly present inside the piece.
Like all memorial options, the right choice depends on what brings the most comfort to you.
Why We Choose Glass at Locked in Art
We choose glass because it feels timeless, and because it brings together the two crafts we have spent most of our lives building.
We have been working with glass since 1996 and metal since the early 2000s. Locked in Art brings those two crafts together: flame-worked glass and handcrafted metal jewelry, created in one deeply meaningful form.
There is something beautiful about the way ashes move inside glass. They are visible, but protected. Present, but peaceful. The glass catches light in a way that gives each piece depth and quiet life.
Each cabochon, bead, marble, or glass element is individually created in our Arizona studio, then paired with sterling silver or gold metalwork that is made, finished, and set by hand. The cremation ashes are handled with care and respect throughout the process, and every piece is made one at a time.
For us, glass is not just a material choice. It is part of the meaning of the jewelry.
The ashes are not temporarily sealed into a surface. They are not simply placed into a compartment. They are transformed into a lasting piece of glass art that can be worn, held, or kept close.

Which Type of Memorial Jewelry Is Right for You?
The right type of memorial jewelry depends on what feels most meaningful to you.
You may prefer resin cremation jewelry if you want a lightweight piece that can include multiple materials such as flowers, hair, pigment, or glitter.
You may prefer an urn necklace if you want a hollow keepsake that you can fill yourself and keep the ashes hidden inside.
You may prefer a memorial diamond if you are drawn to a gemstone-style memorial created through a specialized process using carbon associated with cremated remains or hair.
You may prefer glass cremation jewelry if you are drawn to something permanent, luminous, handcrafted, and created with ashes visibly encased within the glass itself.
You may also want to consider how often you plan to wear the piece. A necklace or bead may be easy for daily wear. A ring may feel especially personal because it is always in view. A bracelet can be a comforting everyday piece worn at the wrist. Earrings may feel subtle and graceful. A tie bar, money clip, cuff link set, or leather cuff may be a meaningful choice for someone who wants something to feel connected on special occasions like a wedding or graduation ceremony.
There is no wrong choice. Memorial jewelry is personal, and the right piece is the one that feels connected to your loved one or pet.
Explore:
- Cremation Memorial Jewelry
- Memorial Rings
- Memorial Bracelets
- Memorial Earrings
- Cremation Accessories
- Glass Cremation Beads
Questions to Ask Before Choosing Cremation Jewelry
Before choosing a memorial piece, it can help to ask yourself a few gentle questions:
- Do I want the ashes to be visible or hidden?
- Do I want a piece I can wear every day, or something for special occasions?
- Do I prefer a soft and subtle design, or something more colorful and expressive?
- Do I want engraving, symbols, or a personalized message?
- Would I feel most connected to a necklace, ring, bracelet, bead, or a keepsake?
- Am I choosing this for myself, as a family memorial, or as a gift for someone grieving?
- Do I want something that looks like traditional jewelry, or something that clearly shows the ashes inside?
Taking a little time with these questions can help make the decision feel less overwhelming. You do not have to choose what anyone else would choose. You only need to choose what feels right for you.

Frequently Asked Questions About Cremation Jewelry
Is glass cremation jewelry fragile?
Glass should always be treated with care, but borosilicate glass is a strong and durable glass. Our glass is set into handcrafted sterling silver or gold designs and made for wearable memorial jewelry. Like any fine jewelry, it should be protected from hard impacts, harsh chemicals, and rough handling.
Can cremation ashes fall out of glass jewelry?
In our glass cremation jewelry, the ashes are permanently encased within the glass itself. They are not loose inside a hollow chamber, so they cannot spill out during normal wear. Even if the glass gets wet, the ashes remain sealed inside the glass.
Does glass or resin cremation jewelry turn yellow?
Glass: Borosilicate memorial glass does not yellow, haze, or discolor over time. Its clarity and color remain stable for decades because the ashes are fused inside the glass at high temperatures. Glass is one of the most color‑stable materials used in memorial jewelry.
Resin: Resin can yellow, haze, or develop micro‑scratches over time. This is normal for polymer‑based materials. Yellowing is accelerated by:
- UV exposure (sunlight)
- HeatSkin oils, lotions, perfumes
- Household chemicals
- Long‑term moisture exposure
High‑quality resin pieces should stay clear longer, but all resin has some risk of color change over time.
Is resin memorial jewelry waterproof?
Resin is water‑resistant but not fully waterproof. Prolonged exposure to water, lotions, perfumes, or cleaning chemicals can cause clouding or surface wear. Remove resin jewelry before swimming, bathing, or cleaning.
What is the difference between glass cremation jewelry and an urn necklace?
An urn necklace has a small hollow compartment that holds ashes inside the pendant. Glass cremation jewelry is different because the ashes are permanently encased within the glass itself and become part of the visible design.
How durable are urn necklaces?
Urn necklaces are durable when properly sealed, but they contain a hollow chamber. To protect the ashes inside:
- Avoid impacts
- Keep the chamber tightly sealed
- Remove the piece during heavy activity
- Store it away from moisture
Many people choose urn necklaces when they want the option to open, refill, or share ashes later.
Are memorial diamonds the same as cremation jewelry?
Memorial diamonds are different from most cremation jewelry. They are gemstone-style memorials created through a specialized process using carbon associated with cremated remains or hair, while cremation jewelry usually holds or incorporates ashes into a wearable design.
Will my Locked in Art piece look exactly like the photo?
Each glass memorial piece is handmade, and each person or pet’s ashes are unique. Your finished piece will be similar in style, color, and design, but the ash patterns and tiny details will be one of a kind.
How much ash is needed for different types of memorial jewelry?
- Glass jewelry: A small pinch (⅛–¼ teaspoon)
- Resin jewelry: Usually ¼–½ teaspoon
- Urn necklaces: Varies by chamber size
- Memorial diamonds: Carbon extracted from ashes or hair
Can pet ashes be used in glass cremation jewelry?
Yes. We create glass cremation jewelry using ashes from both people and pets. Many customers choose memorial pieces for dogs, cats, horses, and other beloved animal companions.
Can hair or fur be used instead of ashes?
Yes. Many memorial makers can incorporate hair, fur, or whiskers into resin jewelry or use them as the carbon source for memorial diamonds. Glass jewelry requires ashes, but some artists can fuse hair ash if it has been carefully cremated.
Can glass cremation jewelry be engraved?
Many of our memorial jewelry designs can be personalized with engraving. Depending on the piece, engraving may include a name, initials, dates, a short phrase, or a meaningful symbol such as a heart, paw print, cross, horseshoe, or infinity sign.
A Memorial Made to Hold Light
Choosing cremation jewelry is a deeply personal decision. Whether you are honoring a parent, spouse, child, sibling, friend, or beloved pet, the piece you choose should feel right to you.
At Locked in Art, we create glass cremation jewelry for those who want a memorial that feels lasting, meaningful, and handmade with care. Each piece is created using solid sterling silver or gold, handcrafted glass, and a small amount of cremation ash from your loved one or pet.
The result is a one-of-a-kind keepsake made to hold memory, light, and love.
If you are drawn to memorial jewelry that is permanent, luminous, and handcrafted one piece at a time, we invite you to explore our collection of glass cremation jewelry.
