Size Guide

Size Guide

Finding the right size should be simple.

Because The Celestine House offers both smart ring covers and fine jewelry rings, sizing works differently depending on what you're purchasing. Please follow the guide below for your specific product.

Smart Ring Cover Sizing

Already own a compatible smart ring?

Order your smart ring cover in the same size as your smart ring.

Our smart ring covers are designed to fit over the corresponding compatible smart ring size.

Example

If your smart ring is:

Size 7 → Order a Size 7 cover

Size 8 → Order a Size 8 cover

Size 9 → Order a Size 9 cover

You do not need to measure your finger again if you already know the size of your compatible smart ring.

Important

Smart ring covers are designed specifically around the dimensions of compatible smart rings. Please check the Compatibility section on the individual product page before ordering.

Different smart ring brands and generations can have different dimensions, so a cover made for one model may not fit another model—even if both rings are the same size.

If you are unsure about compatibility, please contact us before placing your order. We're happy to help.

Which Smart Ring Do You Have?

Compatibility varies by design and product.

Depending on the specific collection, our smart ring jewelry may be designed for:

  • Oura Ring

  • RingConn

  • Ultrahuman Ring AIR

  • Other compatible smart ring models specified on the product page

Always check the individual product page

Before purchasing, please confirm:

1. Your smart ring brand
2. Your smart ring generation/model
3. Your smart ring size
4. The compatibility information listed for the cover

If your exact model isn't listed, please contact us before ordering.

What If I Don't Know My Smart Ring Size?

If you already own your smart ring but don't know the size, you can usually find the size through your smart ring manufacturer's account, app, packaging, or original order information.

You can also contact the manufacturer for assistance identifying your ring size.

Please don't guess your smart ring size.

If you're unsure, contact us before purchasing and we'll help you determine the best option.

Fine Jewelry Ring Sizing

Our regular jewelry rings, including engagement rings, statement rings, stacking rings, bands, and other fine jewelry, use standard ring sizing.

These rings are not sized according to smart-ring sizing.

If you already know your ring size

Simply select your normal ring size from the available options on the product page.

If you don't know your ring size

We recommend having your finger professionally measured by a local jeweler.

For the most accurate result:

  • Measure the finger on which you plan to wear the ring.

  • Measure at a comfortable room temperature.

  • Avoid measuring when your fingers are unusually cold or swollen.

  • Consider the width of the ring, as wider bands can feel more snug.

  • If you are between sizes, contact us before ordering.

Ring Size Conversion

Our products may use U.S. ring sizing.

For international customers, we recommend confirming your local ring size with a professional jeweler and comparing it with the size options shown on the individual product page.

If you need help converting your size, please contact us before placing your order.

Ring Covers vs. Regular Rings

Smart Ring Cover

Sizing: Same size as your compatible smart ring

Purpose: Fits over your existing smart ring

Smart ring included: No, unless specifically stated

Compatibility: Must match the specified smart ring model/generation

Fine Jewelry Ring

Sizing: Standard ring size

Purpose: Worn directly on your finger

Smart ring compatibility: Not applicable

Sizing method: Use your normal ring size or have your finger professionally measured

Important: Smart Ring Not Included

Unless specifically stated in the product description, our smart ring cover listings include the jewelry cover only.

The smart ring shown in product photographs is for demonstration purposes and is not included with your purchase.

Not Sure Which Size to Order?

We're happy to help before you place your order.

Please send us:

For Smart Ring Covers

  • Smart ring brand

  • Model/generation

  • Smart ring size

  • Product you're interested in

For Fine Jewelry Rings

  • Your current ring size

  • Country where your ring size was measured

  • The finger you plan to wear the ring on

  • The product you're interested in

Our team will help you determine the appropriate size before you order.

Need Help?

When in doubt, please contact us before placing your order.

Getting the right size the first time helps avoid unnecessary returns, exchanges, and delays, especially for made-to-order jewelry.

The Celestine House
Fine Jewelry for Your Everyday