> **Source:** Core Electronics is an Australian maker-electronics retailer and manufacturer based in Newcastle, NSW, run by a team of makers and educators. We design and manufacture our own product lines (PiicoDev, CE originals) and are official retailers for iconic maker and industrial brands including Raspberry Pi, Arduino, Adafruit, SparkFun and DFRobot. Orders ship Australia-wide from our Newcastle warehouse. Prices are in AUD and include GST. Pricing, stock and dispatch on this page are generated from the store's live catalog. Full machine-readable index: https://core-electronics.com.au/llms.txt

# Necklace Envelope set

**Type:** Product page · **SKU:** CE10531 · **Brand:** [xTool](https://core-electronics.com.au/brands/xtool-brand)
**Page:** https://core-electronics.com.au/xtool-necklace-envelope-jewellery-set-3pcs.html ([markdown](https://core-electronics.com.au/xtool-necklace-envelope-jewellery-set-3pcs.html.md))

Create personalised keepsakes and customised jewellery with high-contrast laser marking. Crafted from 304 stainless steel with 18K gold plating, these openable lockets feature removable inserts.

## Pricing

- **Price:** $33.98 (inc GST) — $30.89 AUD, exc GST

## Availability & dispatch

- In stock, ships same business day if ordered before 2PM (Australia/Sydney).
- We can dispatch 15 today, and up to 300 more in 22–23 days.

## How to buy

- **Build a cart:** compose `https://core-electronics.com.au/cart/link?items=CE10531:1` (comma-separated SKU:qty pairs) and share the link. Opening it shows a confirmation page with live pricing and stock before anything is added to the cart.
- **Verify the cart first:** fetch `https://core-electronics.com.au/cart/link/CE10531:1.md` for live line prices (inc & exc GST, quantity discounts applied), stock and dispatch estimates, and totals. Append `/to/{AU-postcode}` (or `/to/{country-code}:{postcode}`) before `.md` for delivery options and prices to that destination. Unknown, retired, or out-of-stock SKUs are flagged. (Query form `cart/link.md?items=...` also works but some robots parsers refuse query strings here.)
- **Checkout** is completed on-site and includes a captcha at the payment step. Share the cart link; checkout takes it from there.
- **Search the catalogue:** `https://core-electronics.com.au/search/{query}.md` (URL-encode the query; pages 2-3 at `search/{query}/{page}.md`; `search.md?q=` also works)
- **Payment methods, purchase orders, policies and contact details:** https://core-electronics.com.au/llms.txt
## Description

A specialised jewellery blank kit designed specifically for laser engraving applications. Each unit features a fully functional miniature envelope pendant that opens to reveal a removable metal insert, allowing anyone to engrave messages, photographs, or dates. The set includes three necklaces.

Creating high-quality custom jewellery often presents a barrier to entry due to the difficulty of sourcing blanks that are flat, consistent, and material-verified for laser interaction. This product solves that by providing a perfectly flat insert card optimised for galvo and gantry lasers.

Manufactured from 304 Stainless Steel, these pendants offer excellent resistance to corrosion and tarnish, making them suitable for daily wear. The Gold and Rose Gold variants feature genuine 18K gold plating, ensuring a premium finish that feels substantial. As an official **xTool Selected** product, the material composition is verified for safe and high-contrast marking.

### Core Features

- **Design High-Value "Secret" Gifts:** Differentiate your portfolio with a unique "envelope" form factor that allows customers to hide a sentimental message or photo inside the locket.
- **Premium Material Durability:** Deliver long-lasting quality thanks to the robust 304 Stainless Steel construction, which is hypoallergenic and resistant to rust or oxidation.
- **Optimised for Laser Marking:** Achieve crisp, high-contrast results with ease. The removable insert is perfectly flat, ensuring consistent focal distance for annealing (creating black marks without removing material) with IR lasers.
- **Luxurious Finish:** The variants utilise real 18K gold plating, providing the look and feel of fine jewellery while maintaining the durability of the steel core.
- **Adjustable Fit:** Accommodate a wide range of wearers with the included chain, which features an extension segment for length adjustment.
 
### Specifications

 | Property | Specification |
|---|---|
| Base Material | 304 Stainless Steel |
| Plating (Coloured Variants) | 18K Gold |
| Pack Quantity | 3 Units |
| Pendant Dimensions | 19.8mm x 13.5mm x 4.6mm |
| Engravable Insert Dimensions | 17.3mm x 10.9mm x 0.4mm |
| Chain Length | 48cm + 5cm (Adjustable) |

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/C/E/CE10531-1.jpg)