Birthstone Charm | Square-Cut Personalized Jewelry

A small stone can hold a surprisingly big story.

The Solaris Square Birthstone Charm was created as a simple way to add a month — and the meaning attached to it — to your everyday jewelry.

Choose your own birthstone, the birth month of someone you love, or combine several stones to represent the people and moments that belong together.

One charm can mark a story. A collection can tell an entire one.

How to Layer (Stylist's Tip): These charms are the perfect size (5mm stone) to act as a supportive layer. We recommend pairing your birthstone with your Signature Initial Charm on a 16” link chain from our Layering Lab for the ultimate personalized stack.

Materials vary by design. Many ASTRA pieces are crafted from stainless steel with an 18K gold-plated finish, while selected styles may feature sterling silver components, crystals, pearls, or other materials.

Please refer to the product details and selected variant for the most accurate material information for your piece.

To help preserve the finish and appearance of your ASTRA jewelry, we recommend:

• Removing your jewelry before showering, swimming, bathing, exercising, or prolonged exposure to water.

• Avoiding direct contact with perfumes, lotions, sunscreen, household chemicals, chlorine, and salt water.

• Gently wiping your jewelry with a clean, soft, dry cloth after wear.

• Storing each piece separately in a dry place to help reduce scratching, tangling, and unnecessary friction.

Plated finishes naturally change over time depending on wear, skin chemistry, moisture, storage, and care.

For complete care guidance, please visit our Jewelry Care page.

Processing
In-stock orders are typically processed within 1–3 business days. Personalized and made-to-order pieces may require additional production time before shipment.

Shipping
Standard delivery is typically estimated at 7–12 business days after dispatch, depending on your destination and local carrier conditions.

Enjoy free standard shipping on orders over $69.

Returns
Eligible, non-personalized items may be returned or exchanged within 30 days of delivery, provided they are unworn, unused, and in their original condition.

Personalized and custom-made pieces are final sale unless they arrive damaged, defective, or different from the customization submitted with the order.

For complete details, please see our Shipping & Returns policy.