2026 Holiday SpecialsShop now

Primodiamond & Jewelry

Lab-grown · Certified · Set in New York

Brilliance,grownwithintention.

Diamonds grown in our own lab, then cut, polished and hand-set by our New York bench — fine jewelry with all the fire of a mined stone and none of the compromise.

Shop the collectionDesign your ring
Grown in-house
100%
Grown in-house
Sketch to CAD
24h
Sketch to CAD
Bench to box
14 days
Bench to box
Round lab-grown diamond halo engagement ring on black
01
03

Featured piece

Pavé Halo Engagement Ring

From $1,190
IGI & GIA certified stonesConflict-free by designGrown, cut & set under one roofFree insured shipping over $5,00030-day craftsmanship guaranteeComplimentary lifetime care

Shop by shape

Every cut, grown to order.

Seven signature shapes, each grown and cut in-house for exceptional symmetry, fire and light return.

Introducing our next-gen builders

Design it yourself. See it come alive.

Two studio-grade tools that put our bench in your browser — every choice priced and previewed in real time.

Rose gold band paved with lab-grown diamonds
Oval · 0.10 ct each¾ coverage14K Rose
01 / Builder

Build your forever band

Eternity Band Builder

An unbroken circle of hand-set lab-grown diamonds. Choose from seven shapes, dial in your coverage and make it unmistakably yours.

  • Seven brilliant shapes — mix one or many in a single band
  • Coverage from a five-stone row to full eternity
  • Priced live and ready to order in minutes
Build your band
Lab-grown diamond rings displayed in an ivory ring tray
Round · 2.00 ctHidden haloPlatinum head
02 / Builder

Design your perfect ring

Ring Builder

Pick the stone, carat, setting and metal — and watch every change come to life in lifelike 3D as you craft the ring you have been imagining.

  • Classic solitaire to layered halo and three-stone styles
  • From an elegant 1.00 ct to a statement 5.00 ct
  • Choose head and band metals independently
Design your ring

Custom jewelry

From a napkin sketch to your hand in 14 days.

Engagement rings, heirloom recreations, one-of-one pieces — designed with you and crafted from our own lab-grown diamonds.

Start your piece
  1. marquise, 2ct — yellow?

    Stage oneDay 0

    3D

    Bring a sketch, a photo or a half-formed idea. We map it into a high-fidelity 3D render while you watch.

  2. Ø 17.3 MM8.6 MMTOP · FRONT · 3DREV 02 · APPROVED

    Stage two+24 hours

    CAD in 24 hours

    Your fully dimensioned CAD file is back inside a day. Approve it and the 14-day bench clock starts ticking.

  3. Order PD-24817

    Live
    • CAD approvedDay 1
    • Wax print & castingDay 3
    • Stone settingIn progress
    • Polish & quality checkDay 8
    • Insured dispatchDay 14

    Stage threeDay 14

    Nothing goes dark

    No silent gaps. Every step from approved file to finished piece stays visible to you — and the bench holds the date.

2026 Special

The Holiday Edit

Introducing Primodiamond & Jewelry Lite and our new Silver line — certified lab-grown brilliance at gifting prices, for a limited season only.

Shop holiday specials

Up to 35% off

Model wearing layered fine necklaces against a warm backdrop

Holiday pricing

Online exclusive · Lite & Silver

01–04 / 10

View all holiday specials

Shop by category

Fine jewelry for every day after.

Rings collection

Rings

120+ styles

Earrings collection

Earrings

80+ styles

Necklaces collection

Necklaces

95+ styles

Bracelets collection

Bracelets

60+ styles

Every Primodiamond & Jewelry stone is grown, cut, polished and set under one roof — so nothing about your diamond is left to chance.

The Primodiamond & Jewelry promise

Crafts under one roof
4
Crafts under one roof
Grown · Cut · Polished · Set
CAD turnaround
24h
CAD turnaround
From sketch to approved file
Day bench promise
14
Day bench promise
From approval to finished piece
Day guarantee
30
Day guarantee
On craftsmanship, every piece