Avi examining an emerald and diamond ring under a loupe at the bench

Colored gemstones, chosen by a gemologist.

Natural emeralds, sapphires, rubies and every gem in between, hand-picked by Avi The Gem Guy. Bought at the source, without the retail markup. Pick the stone, we build the ring.

Showroom at 5 S. Wabash Ave, Suite 1010, Chicago. Shipping worldwide.

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The stones do the talking.

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Loose emeralds and sapphires in a brass-rimmed suede jeweller's tray, with pencil ring drawings on paper below

Choose the stone first.

Most jewelers sell you a ring with a stone already in it. Here you pick the gemstone first — diamond, sapphire, ruby or emerald, natural or lab-grown — and we build the ring around it, from our Chicago showroom.

  1. Pick your gemstone

    Browse loose stones, or tell us what you're looking for and we'll pull options.

  2. Choose a setting

    Start from a design or bring your own idea, in 14k or 18k.

  3. We make it

    You approve a render before anything is cast.

  • Every center stone compared side by side, in person or on video
  • Independent grading and lab reports, with treatments disclosed
  • Colored stones are our specialty, from emerald to padparadscha

Fire Gem Candle

A real gemstone hidden in every candle. Light it, let it burn, and see what you find.

4.8 out of 5 from 119 reviews$29.95

Shop the candle

DROP 001 / NOVEMBER

Luxury finished pieces, released in drops.

Avi examining a green gemstone through a loupe, seated in the showroom office beneath a framed article about his work

Meet Avi.

A Chicago gemologist who shows you exactly what you're buying. Avi grades and sells colored gemstones and diamonds, and he and his team build custom pieces around the stone you choose.

From our clients

He was patient, insightful, and made the unnerving process of getting my wife a 10th anniversary gift a real joy.

Ilan D. / custom piece

The pictures and video don't do the bracelet justice. It sparkles wonderfully.

Chhaya C. / ombre sapphire bracelet

These bracelets are top quality goods. The diamonds are exquisite.

Devan S. / diamond tennis bracelet
The Chicago showroom: the AVRAH wall in dark green marble, lit shelves of mineral prints and specimens, and glass cases of jewellery

Visit the showroom.

5 S. Wabash Ave, Suite 1010
Chicago, IL
Monday to Friday, 10am–5pm