SXJR7372SS07W
Black Onyx Octagon Signet Ring
IDEAGEMER · FIT GUIDE
Find your ring size
Measure carefully. Match your size.
01 Measure your finger
Wrap a narrow, non-stretch paper strip around your finger base, snug without squeezing. Mark the overlap, lay flat and measure from the starting edge to the mark in mm. This is your circumference. Repeat to check.
02 Match your measurement
US sizes, approximate measurements. Available sizes vary by product.
| US size | Inside diameter mm |
Circumference mm |
|---|---|---|
| 7 | 17.3 | 54.4 |
| 8 | 18.1 | 56.8 |
| 9 | 18.9 | 59.3 |
| 10 | 19.8 | 62.1 |
| 11 | 20.6 | 64.7 |
| 12 | 21.4 | 67.2 |
| 13 | 22.2 | 69.7 |
| 14 | 23.0 | 72.2 |
Using an existing ring? Measure across its inside opening through the center, excluding the metal. Use the diameter column, not circumference.
Need a hand choosing?
Send your measurement in mm, whether it is diameter or circumference, and the product link.
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Design Concept
A masterclass in modern geometry and heritage power, the Black Onyx Octagon Signet Ring strips the traditional signet down to its absolute essentials. Forged from substantial, solid S925 sterling silver, the ring is sculpted with a commanding octagonal face that frames a pristine, flat-cut natural black onyx stone. The mirror-polished metallic bezel contrasts fiercely against the silent obsidian depth of the onyx, establishing a clean, raw-versus-refined aesthetic. Available in both premium white gold (rhodium) and warm 18K gold finishes, this heavy-duty statement piece acts as a customizable anchor for your hand rotation—a definitive badge of Rugged Luxury built for the contemporary gentleman who commands the room without making a sound.
Product Details
Metal Material: Sterling Silver
Metal Finished: White Gold/Yellow Gold Vermeil
Stone Material: Black Onyx
Stone Color: Black
Weight: 11.3g
Width: 8.9mm
Thickness: 2.6mm
Shipping Box*1
Gift Bag*1
Jewel Box*1
Dustproof Bag*1
Polishing Cloth*1
Processing Time
• Ready-to-ship pieces: 1–3 business days
• Made-to-order designs: 2–3 weeks
• Custom or engraved pieces: 4–6 weeks
Estimated Delivery
• United States: 6–10 business days
• UK & Europe: 7–12 business days
• International: 8–15 business days
Once shipped, you will receive a confirmation email with tracking details. Please allow 24–48 hours for tracking updates to appear.
Shipping rates and expedited options are available at checkout.
Crafted from recyclable sterling silver & brass.
Plastic-free recyclable packaging.
Ethical production standards.
