Handcrafted Energy Core Tritium Necklace

370.00 GBP

The Fall Edit : 15% OFF with code KEEPEDGE15. Free shipping $100+. Duties & taxes included.

Style: Rainbow Core (Seven Vials)
Vial Color: Rainbow Core (Seven Vials)

Discover the glow that never fades. The Handcrafted Energy Core Tritium Necklace merges futuristic energy aesthetics with timeless silver craftsmanship. Inspired by sci-fi power modules, this pendant is made from .999 fine silver, hand-shaped and embedded with self-illuminating tritium vials that emit a steady glow for up to 25 years, with no need for charging or exposure to light.

Every necklace is a quiet beacon of individuality—functional, durable, and deeply expressive. Whether you're drawn to minimalist design or a burst of cyberpunk color, this collection offers a glow that reflects your personal core.

Its glow performance is best seen in low-light environments, and we recommend watching our detailed real-shot video for a closer look.

Available in Two Distinct Designs:

  • Single Vial Core (Two Sizes)
    A clean, modern form with a single tritium vial.

    • Large Core: Vial size: 2×12 mm | Pendant: 22 × 9 × 5.5 mm

    • Small Core: Vial size: 1.5×6 mm | Pendant: 16 × 9 × 5.5 mm

    • Available in seven colors: Red, Orange, Yellow, Green, Cyan, Blue, Violet

  • Seven-Vial Rainbow Core
    A bold, colorful expression featuring seven 1.5×6 mm tritium vials in a fixed rainbow sequence—from red to violet.

    • Pendant Dimensions: 24 mm (L) × 9–10 mm (W) × ~3 mm (T)

    • Vials: 7 × 1.5×6 mm

    • Color configuration: Fixed gradient (Red, Orange, Yellow, Green, Cyan, Blue, Violet)

Each necklace is meticulously handmade and requires around 7 days for production.

If you’d like a custom color combination for the seven-vial version, please select the seven-vial option and leave your preferred colors in the order notes. Please also include the color order, such as from top to bottom on the pendant. Multiple color combinations are supported.

Product Details:

  • Product Name: Handcrafted Energy Core Tritium Necklace

  • Material:

    • Pendant: 999 Fine Silver

    • Chain: 925 Sterling Silver

  • Chain Length: 70 cm (27.5 inches)

  • Glow Source: Tritium vials (self-luminous, no charging required)

  • Glow Duration: Up to 25 years

  • Craftsmanship: 100% Handmade | Production time: ~7 days

  • Design Variants:

    • Single Vial Version

      • Large: 22 × 9 × 5.5 mm (Vial: 2×12 mm)

      • Small: 16 × 9 × 5.5 mm (Vial: 1.5×6 mm)

      • Colors: Red, Orange, Yellow, Green, Cyan, Blue, Violet

    • Seven-Vial Rainbow Version

      • Size: 24 × 9–10 × ~3 mm

      • Vials: 7 × 1.5×6 mm

      • Colors: Fixed Rainbow (R, O, Y, G, C, B, V)

  • Included Items:

    • 1× Tritium Pendant

    • 1× 925 Sterling Silver Chain

    • 1×  Silver Jewelry Polishing Stick. (Helps gently clean silver jewelry and remove tarnish or surface stains caused by daily wear.)

Lovely Robin - Your Sparkle in Every Day.

Lovely Robin is an innovative jewelry design brand established in London, UK, that blends delicate natural elements with vibrant multicultural designs, encouraging people to find simple joys in everyday life.

We are committed to social responsibility, crafting each piece of jewelry with care to serve as a powerful emotional conduit, enhancing the wearer's emotional experience and sense of happiness.

Lovely Robin emphasizes that our jewelry is not just a fine adornment but also a dynamic lifestyle, helping people maintain a deep connection with nature and inner peace even in the fast-paced modern world.

What Customers Say

From verified buyers.

Customer Reviews

Overall rating: 4.9 / 5 from 37 reviews.

Customer photo review of Handcrafted Energy Core Tritium Necklace

Easily the best necklace I’ve bought lately. The price felt a little high for me 😅. I kept second guessing the purchase while I waited. But once I opened the box and saw how good it, I knew it was all worth it.

Handcrafted Energy Core Tritium Necklace

Store owner replied: Thank you so much for your kind words! We’re so happy you love the necklace. Your support means a lot to both us and the designer

Customer photo review of Handcrafted Energy Core Tritium Necklace

Really well made and the glow looks great. It’s definitely real tritium. Only downside is the chain’s a little thin for me, so I’ll probably swap it out.

Handcrafted Energy Core Tritium Necklace

Store owner replied: Thanks so much! Really appreciate it, and glad you’re enjoying it!

Customer video review of Handcrafted Energy Core Tritium Necklace

Nice work👍

Handcrafted Energy Core Tritium Necklace

Store owner replied: Thanks so much for taking the time to make such a thoughtful video. We really appreciate it!

Customer photo review of Handcrafted Energy Core Tritium Necklace

The craftsmanship is nice. It stands out as soon as the lighting gets dim. Forgive my lack of photography skills. I think I’ll probably get a pair of earrings to match this necklace. I also bought your Lightsaber Tritium Pendant, and that one is awesome too. As a Star Wars fan, I;d love to see you consider combining resin with tritium to make a larger but lighter, realistic lightsaber-inspired piece. I know that would be hard to pull off, but if you ever made one, I’d definitely collect it.

Handcrafted Energy Core Tritium Necklace

Store owner replied: Hey, We're absolutely delighted to hear you love the craftsmanship of your Handcrafted Energy Core Tritium Necklace and how it beautifully illuminates in dim lighting. It's fantastic that you're considering a matching pair of earrings and that you're also enjoying your Lightsaber Tritium Pendant. Your creative suggestion for a resin and tritium lightsaber-inspired piece is truly inspiring; we deeply value feedback like this as we explore new possibilities for unique designs. We appreciate you sharing such an innovative idea with us. Thank you for your wonderful review and for being such a valued part of the LOVELY ROBIN community, we hope to welcome you back soon.

Customer photo review of Handcrafted Energy Core Tritium Necklace

Looks really good. My cat was not nearly as excited about the photo as I was lol.

Handcrafted Energy Core Tritium Necklace

Store owner replied: So cute,Thanks!

Customer photo review of Handcrafted Energy Core Tritium Necklace

The Rainbow Core arrived and I was amazed at how well the colors show off. The glow is not visible in direct sunlight, but this was something I never expected. For such a low energy light source I'm really happy with how visible it is in most lower light situations. Once the lights go down it's truly amazing. It looks exactly as it does in the pictures.

Handcrafted Energy Core Tritium Necklace

Store owner replied: Thank you so much, Jason! It looks great on you. We’re really glad you love the Rainbow Core, and we truly appreciate your thoughtful review and photo!

Customer photo review of Handcrafted Energy Core Tritium Necklace

Finally got my tritium necklace. The color is gorgeous, and the quality is nice. I’ll put it on a black cord, so at night it looks like a little energy core.

Handcrafted Energy Core Tritium Necklace

Store owner replied: Thank you so much! A black cord sounds like a perfect match. We love the “little energy core” idea, and we’re really glad you like the color and quality!

Customer photo review of Handcrafted Energy Core Tritium Necklace

Haven’t worn it yet. The yellow is really cool and when the light’s a bit dim, it stands out so much, really bright and eye catching.

Handcrafted Energy Core Tritium Necklace

Nice quality! It glows super bright even when it’s only a little dark, and the color looks just right. I’ll definitely keep supporting small handmade jewelry brands.

Handcrafted Energy Core Tritium Necklace

Saw it on IG and had to get one. Totally worth it. Almost all my friends want one too. It looks especially good at night, and both the finish and the glow are amazing 👍.

Handcrafted Energy Core Tritium Necklace

Had this saved for ages and finally gave in since it doesn’t look like you guys are offering a bigger discount anytime soon :( I got the blue and rainbow versions. The quality is really nice, and the rainbow one definitely looks better at night. I also saw on IG that you had that color-changing duck freebie last year. Any chance it’ll come back? Please email me when it does!

Handcrafted Energy Core Tritium Necklace

Store owner replied: Thanks so much for your purchase and for leaving a review! There’s a chance the color-changing duck freebie may come back during one of our promotions this year. We’re currently checking with the artisan, and we’ll definitely let you know if it returns. Thanks again for the feedback!

Excellent craftsmanship. It feels like a small piece of art, not just a pendant. The mirror finish is super clean, and the tritium vials are bright and beautiful. Just a note, since it is 999 silver, it can oxidize more easily than 925 silver, the polishing stick included by the seller takes care of it perfectly though. Sehr schön piece, everything looks great, and I’ll probably get a few more colors.

Handcrafted Energy Core Tritium Necklace

The pendant is nice and looks really pretty in softer lighting. I’d honestly give 5 stars if USPS wasn’t used, since I’ve had bad experiences with them before :(

Handcrafted Energy Core Tritium Necklace

Nice pendant, great quality, and even prettier in person. The seller also included a silver polishing stick, which was a thoughtful touch. I suggest taking a proper video of the pendant.

Handcrafted Energy Core Tritium Necklace

Finally grabbed it with the discount, it's so eye-catching. My friends keep asking where I got it! But don’t want anyone to know I got it here 😎.

Handcrafted Energy Core Tritium Necklace

This turned out even better than I expected. The .999 silver looks beautiful, feels more solid than I thought, and the tritium colors are just gorgeous. You can really feel the care behind this necklace. It has soul. Huge thanks for making something this special. I’ll definitely be back for other colors.

Handcrafted Energy Core Tritium Necklace

A really nice store, the whole buying process was super smooth. The pendant is small, but the tritium glow looks really cool and pretty at night.

Handcrafted Energy Core Tritium Necklace

This pendant is so beautiful and the craftsmanship is really delicate. It’s a perfect gift for Christmas and New Year.

Handcrafted Energy Core Tritium Necklace

Les petits détails sont super beaux. Et le service client a été super gentil. Franchement, 6 étoiles si je pouvais !

Handcrafted Energy Core Tritium Necklace

Am I the first to get this tritium necklace? Haha, feels kinda cool! Super clean details and the build is solid. You can tell it’s made with care.

Handcrafted Energy Core Tritium Necklace

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