Signet M
No. 409 · The Claim
Solid 14K gold · from 10.5 g


The production 3D file, at real size, shown in 14K yellow gold. Drag to turn it.
Colours in 3D are computed live on your screen. The images beside it are renders of the same production file.




No. 534 · The Assay Office
A nugget square inside stepped frames. An art deco nugget ring in solid 14K gold or sterling silver.
The Assay Office
Gold was fixed at $35 an ounce in January 1934, and the price held until August 1971.
In January 1934, in the Art Deco years, the United States fixed the price of gold at $35 an ounce. That official price held for thirty-seven years, until August 1971. Deco takes up the architecture of those years, frames that step down level by level: two polished steps lead down to a central square of nugget relief, with flat polished walls on the sides of the head, so the nugget sits at the bottom of the last step.
| US size | 14K yellow gold | Sterling silver |
|---|---|---|
| US 6 | from 9.9 g | from 7.8 g |
| US 8 | from 10.4 g | from 8.2 g |
| US 10 | from 10.8 g | from 8.6 g |
| US 12 | from 11.3 g | from 8.9 g |
| US 14 | from 11.7 g | from 9.3 g |
Your order details identify the selected metal. Weights are estimated from the 3D file we cast from. How the estimate works

The Assay Office nugget collection: rings in solid 14K gold or sterling silver shaped like the bars, ingots, octagons and stepped frames of the assay trade, the nugget relief set inside them; most are nugget signet rings. At the assay office, loose gold was melted, tested for fineness and cast into stamped bars.
More from The Assay OfficeOur workshop makes engagement rings. It casts each nugget ring in your size after you order, from the 3D file I draw, and the certificate gives the metal and the estimated weight.
Our storySolid 14K gold keeps the warm yellow of our pictures. Sterling silver is the same ring again. Each has one fixed price per design.
Compare the metalsHalf a size above your usual size: Deco has a wide fit and sits snugly. We cast the exact US size you pick, 4 to 15, half sizes included.
In solid 14K gold, from 9.9 g at US 6, from 10.8 g at US 10, from 11.7 g at US 14; in sterling silver, from 8.6 g at US 10. The weights are estimated from the 3D file we cast from, and the weight table on this page gives more sizes.
Both are in The Assay Office. Deco: a top 13.8 mm wide along the finger, 2.6 mm high, from 10.8 g in 14K at US 10, marked Occasion. Inverse: a top 13.5 mm wide along the finger, 2.8 mm high, from 12.7 g in 14K at US 10, marked Occasion.
Made to order
Cast in your size after you order, by our workshop.
Making and shippingFree US shipping
Free shipping in the US.
Shipping30-day returns
Catalog rings without engraving, within 30 days of delivery.
ReturnsQuestions?
Ask before you order: sizing, metal, timing.
FAQ and contact