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Marquise Ring - worn on female hand

SGN-003

Marquise Ring

7-carat lab-grown marquise diamond, E colour, VS1 clarity — solitaire-set on a hand-forged 18-karat gold band. Worn close to skin, alive on the hand.

Price

$8,715.30

Made to order · Handcrafted

2W – 1MO

Each piece is forged after your order. Stones are sourced to spec — please allow 2 weeks before shipping. We will email you when your piece leaves the studio.

SGN-003 · DROP 01 · NO CEREMONY

Ingredients

7-carat lab-grown marquise diamond, E colour, VS1 clarity — solitaire-set on a hand-forged 18-karat gold band. Worn close to skin, alive on the hand.

The marquise cut traces back to a 1745 commission from Louis XV — a stone shaped to mirror a particular smile. Two and a half centuries of jewelry tradition turned that geometry into an engagement-ring cliché. The Marquise Ring takes the cut back: not for a proposal, not for a vow, but as a daily mark of a self-defined choice. A single 7-carat lab-grown marquise diamond — E colour, VS1 clarity — solitaire-set in hand-forged 18K gold, low enough to clear a sleeve. Worn on whichever finger you prefer; there are no rules embedded in this piece. The shoulders of the band are kept clean so the stone reads as a line rather than as a centerpiece. Real lab-grown carbon, graded 10 on Mohs, same brilliance as a mined stone at a fraction of the extraction cost. For people who picked the cut and refuse the meaning that came with it.

* A signal you carry on the finger.

HANDCRAFTED LAB-GROWN DIAMOND JEWELRY

Composition

METAL
18K GOLD
DIAMOND
7.00 CT
ORIGIN
LAB-GROWN
COLOR
E
CLARITY
VS1
CUT
MARQUISE
SETTING
SOLITAIRE · HAND-SET
FINISH
HIGH POLISH

Volume · 18K · 7.00 CT

WORN INDrop 01 · WornUpdated rolling

FROM PEOPLE WHO MADE IT THEIRS.

Real photos and words from the people who took a piece out of the studio. Updated as new ones come in.

MAY 2026TikTok Shop
★★★★★
Review by Ai**n

Super pretty. Bought their bracelet and necklace.

Ai**n
JAN 2026TikTok Shop
★★★★★
Review by Xing**f

Style: Perfect — Size: Perfect — Material: Perfect — Shipping: Perfect.

Xing**f
MAY 2026XiaohongshuVJR-01
★★★★★
Review by 拾叁张儿

超级精致。很配我的项链,是想要的效果。圈孔小,临时找个环挂上。

拾叁张儿
MAY 2026InstagramSGN-05
★★★★★
Review by Ma**n

ok i'm so in love?? 🥹 layered it with everything in my jewelry box today and got SO many compliments. easily my fav purchase this year ✨

Ma**n
MAY 2026InstagramSGN-05
★★★★★
Review by Le**a

y'all the photos don't even do it justice 😭 literally squealed when i unboxed it lol — gonna be in every outfit from now on. worth every cent 🖤

Le**a
MAY 2026InstagramSGN-05
★★★★★
Review by So**a

思ったよりずっしりしてて雰囲気エグい…首元にこれくるだけでコーデが一気に締まるから、ここ最近これしか着けてない😮‍💨 2つ買って正解だったわ🖤

So**aTokyo

WORN ON SKIN, NOT STORED IN A SAFE.

STREET · SKIN · DAILY

Customer Info · The Fine Print

Everything You Should Know Before Wearing INVOID

Each INVOID piece is hand-forged after you order. Below is exactly what that means for shipping, warranty, returns, and care — written in plain language with no surprises.

  • Shipping

    Made to order. Hand-forged in Singapore.

    Every piece is fabricated after your order is placed — there is no inventory shelf. Fabrication takes about 2 weeks, then 3 to 10 business days transit from Singapore depending on destination. You receive a tracking number by email when your piece leaves the studio.

    • Singapore — flat SGD 10
    • International (27 countries: US · CA · UK · EU · AU · NZ · JP · KR · HK · AE · IL · MY) — flat SGD 30
    • Orders ≥ SGD 135 — shipping is on the studio, worldwide
    • Countries outside that list: email the studio to arrange shipping
  • Returns & Exchanges

    Seven days to change your mind. Return shipping is on you.

    Each INVOID piece is made to order with lab-grown stones cut to your spec. We still hold a seven-day return window for change of mind: an unworn piece in its original packaging may be returned within seven days of delivery. Outbound shipping is on the studio; return shipping is on the customer. The two exceptions below — defects and sizing — remain fully covered without restocking fees.

    • Change of mind — request a return within 7 days of delivery. Piece must be unworn and in original packaging. You cover return shipping; we refund to the original payment method once the piece is back at the studio.
    • Defects or shipping damage — report within 14 days of delivery with photos. Studio repairs, replaces, or refunds; we pay return shipping both ways.
    • Ring sizing (sgn-03 · sgn-04) — request a resize within 14 days. You cover round-trip shipping plus a SGD 50 craft fee. Once per piece.
    • Pieces that have been altered by another jeweller, lost their original packaging, or arrive past the stated window are excluded.
  • Warranty

    Lifetime structural warranty on every piece.

    INVOID guarantees the integrity of every solder joint, prong setting, bezel, and clasp for the lifetime of the piece, under normal daily wear. If something we built fails — a prong loosens, a bail snaps, a clasp gives way — we fix it. Email the studio with your order ID and photos; we respond within 5 business days.

    • Covered — solder failures, loose prongs/bezels, clasp/bail breakage on undamaged pieces, original-stone replacement if a stone drops within 30 days of delivery
    • Not covered — physical damage (impact, crushing, chemical exposure, chlorinated water, bleach), natural patina on oxidised silver, modifications by another jeweller, normal cosmetic wear
    • Stone loss reported more than 30 days after delivery is treated as wear-and-tear and is excluded — inspect your piece on arrival
  • Care

    Wear it daily. Protect it deliberately.

    Lab-grown diamonds and sapphires are graded 9–10 on the Mohs hardness scale and tolerate daily life. The metalwork and the jade are softer. The rules below keep every piece looking the way it left the studio.

    • Take it off before swimming, showering, sleeping, and any contact sport
    • Avoid bleach, chlorinated pools, hot tubs, and salon chemicals — these dull gold and pit silver
    • Clean at home with warm water, mild soap, and a soft cloth — no ultrasonic cleaners on the jade pendant
    • Send any piece back to the studio for complimentary professional polishing once per year
  • Support

    Talk to the studio directly.

    INVOID does not have a call centre. Every inquiry is answered by the studio team that built your piece. Typical response: within 24 hours on weekdays (Singapore time).

Stay close

10% off your first piece · one quiet email a month