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Platinum Diamond Sharp Signet

Sale price$3,270.00

Metal:
Choosing your metal

All of it is solid. No plating, no filler, the same metal on the surface as underneath. That part doesn't change between these. What changes is weight, colour, how it ages, and what it costs.

Silver
92.5% silver. The most affordable way into a piece, and the softest of the four - it picks up marks sooner, and it tarnishes, which is silver reacting with the air rather than anything going wrong. A soft cloth brings it back. If you wear something daily and like a piece that shows its life, silver is honest about that.

Yellow gold
Warmer, heavier, and considerably more valuable - a gold signet hold around seven times the value of a silver one. It doesn't tarnish, and it holds its colour for decades with almost no attention. This is the choice for a piece you expect to still be wearing in twenty years, or handing on to the next generation.

White gold
The same gold, alloyed to sit cooler in colour. Most white gold is rhodium-plated to force it whiter - that plating wears through and needs redoing every few years. Ours isn't plated. So it sits a shade warmer than plated white gold, and it stays exactly that shade for good.

Platinum
The densest and the most valuable. Noticeably heavier on the hand, which people either love or don't. It doesn't tarnish and it doesn't wear away - a scratch pushes the metal aside rather than removing it, so it takes on a soft patina over years instead of thinning.

If you want one recommendation: 10K yellow gold. It's the best balance we've found between quality, affordability and durability - hard enough for daily wear, with the strength to shine for generations to come.

Still deciding? Email hello@westhill-store.com. We'd rather talk it through than have you guess on a four-week lead time.

Size:
Size Chart
Not sure about your ring size? Order a complimentary ring sizer here

 

Australian/UK Inside Diameter (mm) US Euro

E

13.7

2.5 43

F

14.1

3 44
G 14.4 3.5 45
H 14.8 4 46
I 15.2 4.5 48
J 15.6 5 49
K 16 5.5 50
L 16.4 6 51
M 16.8 6.5 53
N 17.2 7 54
O 17.6 7.5 55
P 18 8 56
Q 18.4 8.5 57
R 18.8 9 59
S 19.2 9.5 60
T 19.6 10 61
U 20 10.5 63
V 20.4 11 64
W 20.8 11.5 65
X 21.2 12 67
Y 21.6 12.5 68
Z 22 13 69
 

Size

Engraving

Most of our rings can be personalised on the inside surface, with a maximum number of 25 characters. Look out for the 'personalise' option on the product page to find out if it is possible for your chosen ring.

We also offer a monogram service for our signet rings so that you can engrave the signet face with up to 3 letters. Find Engraving Examples when you click the 'Personalise' dropdown on the product page.

Platinum signet ring with a max width of 7mm and a sustainably sourced Diamond set on the shoulder. 2mm Diamond with 0.05 carat. Lab-grown and set by hand here in Australia. 

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Westhill Silver Diamond Sharp Signet Ring
Platinum Diamond Sharp Signet Sale price$3,270.00

Every piece is made to order by hand in our Sydney studio - cast, filed, set and polished by the same small team.

Our gold and silver comes from LBMA-accredited merchants here in Sydney, which means the supply chain is audited and traceable. Most of it is recycled rather than newly mined.

Solid metal throughout. No plating, no filler.

Production takes three to four weeks. Nothing is made in advance, so your piece is started once you order.

Shipping sits on top of that and depends on where you are. Delivery within Australia is free; international is a flat $30. Tracking comes through by email when it ships.

Need it by a particular date? Add it to the notes at checkout or send us an email, and we'll tell you honestly whether we can make it.

Every piece includes one complimentary resize. Send it back and we'll adjust it.

If you'd rather not guess, order a free ring sizer before you buy - it only takes a few minutes then we post it to you.

Beyond fit, you have 10 business days from delivery to return an unworn piece for exchange or store credit. Full terms are on our returns page.

Yes. Engraving is $40 inside a ring band or on a pendant. $95 on a signet ring face - all added at above.

We cast the engraving into the piece rather than lasering it on afterwards. It sits deeper, lasts longer, and keeps the slightly irregular edge that reads as made rather than printed. Personalised pieces can still be resized afterwards.

For signet faces, we send you an illustration to approve before anything is set in metal.

Solid gold and silver hold up well, but they aren't indestructible. Silver needs a little more TLC to keep it looking the way you want it.

Keep Silver away from chlorine, cleaning products and perfume. Take it off before the gym or the beach. Store it dry and separate from your other pieces so it doesn't pick up scratches.

A soft cloth brings the shine back. A silver cleaning kit bought online will take you further. If it needs any more than that, send it back to us for maintenance.

Days 1-5

Design

Every piece starts as a CAD drawing, redrawn until the proportions earn their place. Personal touches - initials, a date, a message - are worked into the design at this stage, then cast into the piece rather than lasered on afterwards: casting lets us engrave deeper, so it lasts longer, and leaves the kind of soft, slightly irregular edge that reads as made rather than printed. For personalised signet faces, we send you an illustration to approve before anything's set in metal.

Days 6-13

Casting

The wax model is attached to a tree of wax rods, encased in plaster, and left to set hard. From there it spends up to 11 hours in a kiln, until every trace of wax has burned away and only a hollow cavity remains. Solid silver or gold - sourced locally - is poured into that cavity, the same way it's been done for centuries: lost wax casting. Once it's cooled, we break the mould away and cut the piece free. The wax doesn't survive the process. Everything else does

Days 14-18

Clean Up

Every piece comes off the casting tree rough - sprues to remove, edges to even out, small inconsistencies to work through. We take it through a series of abrasives by hand until the surface is consistent across the whole piece. Not the most photogenic stage. Necessary all the same.

Days 19-22

Stone Setting

Diamonds are bright-cut flush set - a flat graver cuts a crisp, reflective bevel around the stone before the metal is rubbed over it, framing the diamond's geometry and smoothing the transition into the ring's shoulder. Onyx, bloodstone and tiger's eye are bezel set instead: a raised rim wraps fully around the stone, holding it in place while leaving the flat face exposed. Different stones call for different settings - we use whichever the stone actually needs, not whichever's easier.

Days 23-28

Polishing

A preliminary buff first, then a final pass, inside and out, for a proper high-lustre finish. From there it's ultrasonic and steam cleaning, then a last quality check before packing and dispatch.

Hand-finished in our Sydney studio, then checked twice before it ships.

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