I want
my nugget.

No. 502 · The Assay Office

Bullion nugget ring

Nugget on top, cut flat on the sides. A bullion nugget ring in solid 14K gold or sterling silver.

$5,580

from 30.6 gof solid 14K gold at US 10 (our reference size)

Estimated from the 3D file we cast from; your certificate shows the estimated weight.

Same price at every size

Metal

Solid 14K yellow gold: the warm yellow of our pictures. Compare the metals

The same ring in sterling silver, at one fixed price, our lowest. Silver darkens with time; a polishing cloth brings it back. Compare the metals

Same design, same 3D file, same casting: only the metal changes the price, never the size.

Find your size · Comfort-fit interior in the 3D design.

We cast the exact US size you pick; resizing after your order has a fee. Our sizing rule

Wide fit: this ring sits snugly, so we suggest half a size above your usual size.

Made and shipped within 15 business daysMade to order: about 2 to 3 weeks at the workshop, 15 business days at most (weekends and public holidays not counted), then carrier transit.

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More from The Assay Office

All of The Assay Office

The story of Bullion

The Assay Office

Bullion is gold in bars. This one keeps a bar’s flat polished sides and puts the nugget relief on top, where an assayer stamped the weight and fineness.

In 1850s San Francisco, placer gold went to the assayer, who melted it and cast it into bars. Each bar was stamped with the assayer’s name, a number, the weight, the fineness in thousandths and the value: bars from the firm of Kellogg & Humbert, raised from the wreck of the SS Central America, still carry those figures. Almost all the big nuggets of the time ended up melted; the Welcome Nugget from Ballarat went into sovereigns in November 1859. Bullion keeps the shape of the bar, straight smooth sides, and leaves the nugget relief on top.

Description
  • A square block head with nugget relief on top and flat polished sides, which meet it along an uneven edge. Wide plain shoulders run into a sturdy band.
  • Part of The Assay Office: set inside a bar, an ingot or a stepped frame. See the collection

Bullion weight and dimensions

Estimated weight by US size
US size14K yellow goldSterling silver
US 6from 28.0 gfrom 22.2 g
US 8from 29.3 gfrom 23.2 g
US 10from 30.6 gfrom 24.2 g
US 12from 31.9 gfrom 25.2 g
US 14from 33.2 gfrom 26.2 g
Reference
No. 502
Registry
Numbered in the Originals registry

The ring

Metal
14K yellow gold
Weight in 14K, US 10
from 30.6 g
Weight in sterling silver, US 10
from 24.2 g
Top width, along the finger
16.4 mm
Band width at the base
7.2 mm
Height above the finger
5.3 mm
Interior
Comfort fit: slightly domed, rounded edges
Fit
Wide fit, half a size up
Wear
Occasion

Your order details identify the selected metal. Weights are estimated from the 3D file we cast from. How the estimate works · The rounded comfort-fit interior is part of the 3D design we cast from.

The nugget relief

Collection
The Assay Office
Relief
Set inside a bar, an ingot or a stepped frame
Profile
Bold: broader faces, fuller crowns
Casting
In one piece with the band, from the 3D file

Ordering

All our services

Making
Cast in your size after you order, in about 2 to 3 weeks. Making and shipping
Shipping
Free shipping in the US. Shipping terms
Returns
Rings without engraving, within 30 days of delivery. Returns and refunds
Size
The exact US size you pick; resizing after your order has a fee. Our sizing rule
Engraving
Up to 14 characters inside, $55; engraved rings cannot be returned. Engraving
Care
Mild soap for 14K gold, a polishing cloth for silver. Caring for your ring
Trade-in
A ring you return can be credited at its recovered metal value. How the credit is worked out

The IWMN experience

About the collection, the workshop and the gold

No. 531 Octagon nugget ring in 14K yellow gold, on a ledge of dark slate

The Assay Office

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 Office

The workshop

Our 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 story

14K or silver

Solid 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 metals

Questions about Bullion

What size should I order in Bullion?

Half a size above your usual size: Bullion has a wide fit and sits snugly. We cast the exact US size you pick, 4 to 15, half sizes included.

Ring size chart

How much does Bullion weigh in my size?

In solid 14K gold, from 28.0 g at US 6, from 30.6 g at US 10, from 33.2 g at US 14; in sterling silver, from 24.2 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.

How is Bullion different from Anvil?

Both are in The Assay Office. Bullion: a top 16.4 mm wide along the finger, 5.3 mm high, from 30.6 g in 14K at US 10, marked Occasion. Anvil: a top 15.4 mm wide along the finger, 5.9 mm high, from 30.2 g in 14K at US 10, marked Occasion.

No. 501 Anvil

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