3D heart images for personalised keepsakes: a buyer's guide
Use a vector SVG when you can. If you don’t have one, a high-contrast PNG or JPG at 300 DPI and tens or thousands of pixels on the longest side will work for laser-etched crystal, projection necklaces, and night lights. That covers the vast majority of personalised keepsakes available in Canada right now.
Before you upload anything, run through these three checks:
- Remove the background. A transparent background on your PNG prevents the supplier’s software from reading white space as part of the design.
- Check contrast. Dark subject on a light field (or vice versa) is what the laser reads. Low-contrast art produces a muddy result.
- Keep initials and dates separate. Submit them as a distinct text layer or as clearly isolated, high-contrast elements so they remain legible at engraving scale.
For all three keepsake types covered here, Radioactivelove is the recommended Canadian vendor. Their 3D Crystal Ball Video Player accepts custom 3D heart imagery and video, and the internal engraving process leaves the outer surface untouched, so the image doesn’t fade over time.
Pro Tip: Save your working file in its native editable format (AI, PSD, or Figma) before exporting. If the supplier asks for a revision, you’ll have the layers ready instead of starting from scratch.
Key takeaways
A high-contrast PNG or SVG at 300 DPI is the single most reliable way to get a sharp, lasting 3D heart image on any personalised keepsake.
| Point | Details |
|---|---|
| Preferred file format | SVG vector first; PNG at 300 DPI and 2,000–4,000 px as the reliable alternative. |
| Contrast is critical | High-contrast art gives the laser more to work with; low-contrast inputs produce muddy results. |
| Keep text separate | Submit initials and dates as isolated elements or a separate layer so they stay legible at small scale. |
| Always request a proof | Review the digital mock-up before the order goes to production to catch errors at no cost. |
| Radioactivelove for Canada | The 3D Crystal Ball Video Player accepts custom heart imagery and ships domestically with GST/HST at checkout. |
Table of Contents
- What file formats and specs actually work for keepsake personalisation?
- How to prepare or commission a 3D heart graphic for upload
- Which heart image style works best for each keepsake?
- Upload and proofing checklist before you place your order
- What does a personalised 3D heart keepsake cost and how long does it take?
- Radioactivelove’s 3D Crystal Ball: specs and how to order
- What actually matters when you choose a heart design
- Radioactivelove makes the file prep straightforward
- Sources
What file formats and specs actually work for keepsake personalisation?
SVG is the gold standard because it scales to any size without losing sharpness. PNG is the practical runner-up: it supports transparency, handles gradients cleanly, and is accepted by nearly every keepsake supplier. JPG works in a pinch, but compression artefacts around fine edges can show up in the final engraving, so use it only when PNG isn’t an option.
For raster files (PNG or JPG), suppliers consistently recommend 300 DPI as the baseline, with the longest side sitting between 2,000 and 4,000 px. Go below that and the laser has less point data to work with, which softens curves and reduces perceived depth.
- SVG (vector): Preferred. Resolution-independent, editable, and easy for suppliers to convert to point-cloud coordinates.
- PNG (raster, transparent background): Widely accepted. Keep it at 300 DPI minimum; flatten only when the supplier asks.
- JPG (raster, no transparency): Acceptable for full-colour designs, but avoid heavy compression. Save at quality 90 or higher.
- Colour mode: Submit in RGB unless the supplier specifies CMYK. For laser-etched crystal, a single-colour or greyscale version often produces the cleanest internal image because point density and pulse control determine resolution, not colour.
- File naming: Use plain alphanumeric names with no spaces or special characters. “heart_initials_v2.png” is fine; “Méghan & Luc — final!!.png” will cause upload errors on most platforms.
You don’t need to supply a 3D model file (.STL or .OBJ). The supplier’s software handles the conversion from your 2D artwork to internal 3D coordinates automatically.
Pro Tip: If you’re submitting a greyscale PNG for laser work, increase the contrast beyond what looks natural on screen. Monitors display mid-tones more generously than a laser reads them.
How to prepare or commission a 3D heart graphic for upload
The photo-to-crystal workflow follows a consistent pattern: edit the image, convert it to depth data, then engrave. Your job as the customer is to hand off the cleanest possible input so that conversion step introduces as little noise as possible.
- Choose your base artwork. Start from the highest-resolution source you have. A vector heart illustration is ideal; a sharp photo works if you’re converting it to a stylised silhouette.
- Simplify the shapes. Remove small decorative details that won’t survive at engraving scale. A clean heart outline with one or two interior elements reads far better than a busy pattern.
- Boost contrast. Push the darks darker and the lights lighter. The supplier will adjust contrast before engraving, but starting from a flat image means more processing and more room for error.
- Set the canvas size. Match the supplier’s stated dimensions. If they ask for a 2,000 × 2,000 px square, don’t submit a 4:3 rectangle and expect them to crop it correctly.
- Export in the accepted format. SVG for vectors; PNG at 300 DPI for raster. Name the file clearly and keep a copy of the layered source.
For photos converted to stylised heart designs, posterize the image to three or four tonal levels, then use a vector-trace tool to create clean outlines. This prevents the pixelation that appears when a photographic gradient is engraved directly.
Pro Tip: Ask the supplier whether they accept layered vector files. Supplying editable vectors reduces their processing time and makes it easier to preserve text elements at small scale.
Which heart image style works best for each keepsake?
The answer depends almost entirely on how the product displays the image.
Laser-etched 3D crystal needs depth-suggesting artwork with strong contrast between the subject and the surrounding space. K9 optical-grade crystal produces the brightest, clearest result because its light-refraction properties amplify the internal engraving. Avoid tiny text inside the heart; anything under roughly 8 pt equivalent will blur. Centred compositions with balanced negative space read best.
Projection necklaces project the image in a small circle of light, single-colour. Simplified silhouettes and bold contrast are non-negotiable here. A detailed 3D heart illustration that looks beautiful on screen becomes an unreadable smudge when projected at thumbnail size.
Night lights and illuminated gifts are lit from one side, so the image is read as a backlit silhouette. Bold outlines with minimal internal detail work best. Fine crosshatching or gradient fills disappear entirely.
Pro Tip: For projection jewellery, test your design by shrinking it to a 1 cm thumbnail on screen. If you can still read the initials and recognise the heart shape, it will project clearly.
Upload and proofing checklist before you place your order
Run through this before hitting confirm.
- Pixel dimensions match the supplier’s stated canvas size
- DPI is 300 or higher for raster files
- Background is removed (transparent PNG, not white-filled)
- Text and initials are on a separate layer or clearly isolated
- File is named with plain alphanumeric characters, no spaces
- Zoomed to 100%: edges are sharp, not feathered or pixelated
- Checked in greyscale: contrast still reads clearly for laser work
- You own the design or have written permission to use it
- Original source file is saved separately before export
Request a pre-production proof or digital mock-up before the order goes to the laser. If the preview looks off, send an annotated screenshot alongside your original file to the supplier’s support team. Catching a misaligned date or a clipped edge at proof stage costs nothing; catching it after engraving does.
Pro Tip: Save your proof approval email. If there’s a discrepancy between the approved proof and the finished product, that email is your clearest evidence for a resolution request.
What does a personalised 3D heart keepsake cost and how long does it take?
Production for custom engraved keepsakes typically runs several days to about a week, depending on complexity and the supplier’s current queue. Express options are available from most vendors for an added fee, often cutting that window to 1–3 business days.
- Canadian domestic shipping adds multiple business days depending on the carrier and your province.
- GST/HST applies to most personalised gift purchases in Canada; confirm the tax total at checkout before paying.
- If you’re ordering for a specific date (anniversary, Valentine’s Day), count backward from that date using the production window plus shipping, then add two days as a buffer.
For last-minute orders, Radioactivelove’s guide to selecting personalised gifts quickly outlines which products ship fastest and how to request priority handling.
Radioactivelove’s 3D Crystal Ball: specs and how to order
The 3D Crystal Ball Video Player is Radioactivelove’s flagship keepsake. It accepts a custom video or 3D heart image, displays it on an internal electronic screen inside the glass ball, and ships in gift-ready packaging. It’s built for exactly the romantic gifting context this guide covers: anniversaries, long-distance relationships, and milestone moments.
- Accepted inputs: custom video files and 3D heart imagery; full upload specs are listed on the product page
- Personalisation: custom video, 3D image, optional engraved message
- Material: optical-grade glass ball, 2.7 inches
- Ordering steps: select the product, upload your file, review the digital proof, approve, and the order ships
Radioactivelove also offers a projection necklace and a warm crystal night light for shoppers who want a smaller or wearable keepsake.
The image inside a laser-engraved crystal is permanent. Because the engraving is internal, the outer surface stays smooth and the image cannot be scratched or worn away, making it a genuinely lasting gift rather than one that degrades with handling.
Pro Tip: Pair the crystal ball with a jewellery gift box for a presentation-ready package that needs no extra wrapping.
What actually matters when you choose a heart design
The instinct is to add more: more detail, more text, more flourishes. Resist it. A heart that reads clearly at thumbnail size, with initials that don’t require squinting, will outlast a complex design that looked impressive on a 27-inch monitor and turned into noise on a 2.7-inch crystal ball.
Simple silhouettes age well. A clean outline with two initials and a date is still recognisable in ten years; a layered illustration with gradient fills and decorative borders often isn’t. When you’re tempted to add a small icon or extra text element, ask whether it will still be legible when the whole design is reduced to the size of a coin.
If you’re hesitant about any design decision, request a proof. That single step removes almost all the risk from a personalised order.
Radioactivelove makes the file prep straightforward
Getting a personalised 3D heart keepsake right comes down to one thing: handing off a clean file. Radioactivelove’s ordering process is built around that. You pick the product, upload your image per the specs on the product page, and the team handles the point-cloud conversion and engraving. No specialist software on your end.
Start with the 3D Crystal Ball Video Player: upload your heart image or custom video, approve the digital proof, and the order ships to your Canadian address with GST/HST calculated at checkout. If you need help preparing your file, Radioactivelove’s support team can advise on format, resolution, and design before you commit to an order.
Sources
- How 3D Crystal Laser Engraving Creates Perfect Gifts
- How 3D Crystal Engraving Works: Laser Inside Glass Guide
- How to choose a 3D Crystal with a high - resolution 3D image? - Blog - Shining Crystal
- Sculpting Memories: The Fascinating World of 3D Crystal Photo Creation - Ore Yome
