Shop €79

Lab-created moissanite · 925 silver

Fire you can measure.

A 6.5 mm moissanite in a six-claw sterling silver setting. More than twice the fire of a diamond, for €79.

Shop the pendant €79 See the fire
  • Free tracked delivery over €59
  • 30-day returns
  • 925 sterling silver

01 / 06 · Fire

More than twice the fire of a diamond.

Fire is the rainbow flash you see when white light splits inside a stone. Moissanite splits it 2.4 times as wide as diamond does.

Dispersion
0.104
Diamond
0.044

02 / 06 · Brilliance

57 facets, cut to send the light back.

A round brilliant is cut to return light through the top of the stone. Moissanite bends light more sharply than diamond does: 2.65 against 2.42.

Refractive index
2.65
Facets
57

03 / 06 · Hardness

Harder than sapphire.

Only diamond is harder. Moissanite takes the knocks of daily wear without scratching or clouding, so it can be worn every day.

Mohs scale
9.25
Sapphire
9

04 / 06 · Setting

Six claws, not four.

Six ball-tipped claws in 925 sterling silver hold the stone every 60 degrees. It sits securely and catches light from every side.

Claws
6
Sterling silver
925

05 / 06 · Origin

First found in a meteorite crater.

In 1893 Henri Moissan found tiny silicon carbide crystals at Canyon Diablo, Arizona. Natural moissanite is extremely rare. Every stone sold today, ours included, is grown in a lab.

Discovered
1893
Made
In a lab

06 / 06 · Yours

6.5 mm of light, in sterling silver.

The size of a 1 carat diamond, on a sterling silver chain. Free tracked delivery over €59 and 30 days to change your mind.

Stone
6.5 mm
Returns
30 days
Shop the pendant €79

The numbers

Moissanite, diamond and cubic zirconia, measured side by side.

MoissaniteLab-created · most fire
DiamondMined or lab-grown
Cubic zirconiaSynthetic imitation

Dispersion

The rainbow flashes, or fire
Moissanite0.104
Diamond0.044
Cubic zirconia0.060

Refractive index

How sharply light bends: brilliance
Moissanite2.65–2.69
Diamond2.42
Cubic zirconia2.15–2.18

Hardness

Mohs scale, resistance to scratching
Moissanite9.25
Diamond10
Cubic zirconia8–8.5

Origin

Where today’s stones come from
MoissaniteLab-created
DiamondMined or lab-grown
Cubic zirconiaSynthetic

Published gemmological reference values. Dispersion is measured between the B and G Fraunhofer lines.

01 / 06 · The studs

Two more points of light.

The pendant’s six-claw setting, made for your ears: two 5 mm moissanites in 925 sterling silver.

Stones
5 mm
Diamond look
0.5 ct

02 / 06 · Fire

The same fire, at 5 mm.

Each stud is a 57-facet round brilliant moissanite: the cut and the fire of the pendant, sized for the ear.

Facets
57
Dispersion
0.104

03 / 06 · Setting

Six claws, one silver post.

Six claws hold each stone. A sterling silver post and a push-back keep it close to the ear and easy to put in.

Claws
6
Sterling silver
925

04 / 06 · Inside

Taken apart, nothing to hide.

Stone, claws, basket, post and push-back. Five simple parts around a lab-created moissanite.

05 / 06 · The set

Wear them with the pendant.

Same claws, same light. Bought together, the saving is applied automatically in your bag.

Shop the set

06 / 06 · Yours

5 mm studs in sterling silver.

Sold as a pair. Free tracked delivery over €59 and 30 days to change your mind.

Pair
2 × 5 mm
Returns
30 days
Shop the studs €49

Choose your piece

One stone, two stones, or all three.

Solitaire pendant

A 6.5 mm moissanite in six ball-tipped claws, on a 40 cm sterling silver chain with a 5 cm extender.

  • 6.5 mm stone
  • 0.104 dispersion
  • 925 silver

€79

Not available in NorwayDetails

We deliver to the 27 EU countries. Choose your country to order.

Lab-created moissanite925 sterling silver57 facetsFree EU delivery over €5930-day returns

Made, not mined

Lab-created, and we say so.

Every Siderelle stone is moissanite grown in a lab. It is not a diamond and we will never call it one. It is a gemstone in its own right: harder than sapphire, with more fire than diamond, at a price that makes sense for something you wear every day.

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01 / 06 · From light to stone

It begins as light.

Moissanite is silicon carbide. In the lab, pure silicon and carbon are heated past 2,000 °C until they rise as a glowing vapour.

Made of
Silicon carbide
Heat
2,000 °C +

02 / 06 · Crystal

Grown one layer of atoms at a time.

The vapour settles on a seed crystal and slowly builds it into a clear, six-sided crystal: the same structure as the moissanite found in a meteorite crater in 1893.

Crystal
Hexagonal
Mohs hardness
9.25

03 / 06 · Rough

One crystal, cut free.

A precise cut frees a rough piece from the crystal, a little larger than the stone it will become.

Finished size
6.5 mm
Shape
Round

04 / 06 · Facets

57 facets, polished in.

Each facet is ground and polished at its own angle, so light that enters the stone comes back out through the top as fire.

Facets
57
Refractive index
2.65

05 / 06 · Setting

Six claws close around it.

The stone is set in 925 sterling silver: six ball-tipped claws hold it high, so light reaches it from every side.

Claws
6
Sterling silver
925

06 / 06 · Yours

From light, to you.

Checked, packed and sent with tracked delivery. Free over €59, with 30 days to change your mind.

Delivery
Tracked
Returns
30 days
Shop the pendant €79

Same stone, honest price

1 ct of fire, without the 1 ct price.

A 6.5 mm moissanite has the look of a 1 ct diamond. Elsewhere the loose stone alone usually costs several times what our finished pendant does.

Siderelle solitaire pendant

6.5 mm · 1 ct diamond equivalent · 925 silver chain included

€79Finished pendant

Typical 1 ct moissanite

Loose stone only · no setting, no chain

€255–510about 300-600usd

Typical retail price of a loose 1 ct moissanite in Google search results, October 2026: $300–600 (about €255–510 at €0.85 per $). Prices vary by seller, cut and colour grade.

Shop the pendant €79

  • Free tracked delivery over €59

    Tracked to your door in all 27 EU countries. €4.90 below €59.

  • 30-day returns

    Changed your mind? Send it back within 30 days of delivery.

  • 925 sterling silver

    Setting, bail and chain in sterling silver.

  • Secure checkout

    Encrypted Shopify checkout with the payment methods you already use.

Reviews

From people who wear it.

5.0 1 review

Reviews are written by customers. Reviews marked “Verified purchase” have been checked against an order in our shop; other reviews have not been checked.

Questions

What people ask before they buy.

Something else? Write to us. We answer within one business day.

What is moissanite?

Moissanite is crystalline silicon carbide. It was first found in a meteorite crater in 1893 and is so rare in nature that every moissanite on the market, including ours, is created in a lab. It is near-colourless, 9.25 on the Mohs hardness scale and has more fire than diamond.

Is it a diamond?

No. Moissanite is its own gemstone. It looks similar to a diamond but throws more rainbow-coloured fire. A basic thermal diamond tester may read it as diamond; a multi-tester identifies it as moissanite. We always sell it as lab-created moissanite.

How big is the stone?

6.5 mm across, the same size as a 1 carat round diamond. Moissanite is a little lighter than diamond, so we give the size in millimetres rather than carats.

Will the silver tarnish?

No S295 silver is high quality silver and will not tarnish. We still dont advise swimming with it.

How long does delivery take?

Orders leave within 1–3 business days and arrive in 5–10 business days, tracked all the way. Delivery is free over €59 and €4.90 below.

Can I return it?

Yes. You have 30 days from delivery to return it unworn and in its original packaging. Your statutory 14-day right of withdrawal in the EU applies in every case. The steps are in our refund policy.

Follow the light

Worn by you, every day.

New pieces, styling notes and the occasional rainbow on a white wall.

@siderelle

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Write to us

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Sizes, gifts, delivery or an order you have already placed: send us a message and a person answers, usually within one business day.

Response time
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