if you already own a juwels & co toi et moi ring, you can now upgrade one or both stones to a lab-grown diamond — pear or emerald cut — with complimentary cleaning, a prong check, and free insured return shipping included.
a ring chosen at one point in life doesn't have to stay exactly as it was. tastes change, milestones accumulate, and sometimes a piece that meant something then can mean something more now — with a small but deliberate change.
the diamond upgrade program exists for juwels & co clients who are ready for that next step. your original ring comes back to us, a lab-grown diamond replaces the existing stone, and the piece is cleaned, polished, and checked before being returned to you. the setting stays the same. the story continues.

start your diamond upgrade
visit the diamond upgrade product page, choose your cut, and we'll send you instructions for returning your ring safely.
view the upgrade program →what's included in the upgrade
the upgrade isn't just a stone swap. every piece that comes through the program receives the same care as a new order.
- Lab-grown diamond replacement your choice of pear or emerald cut, in G–H color and VS2–SI1 clarity. the stone is set by hand in our los angeles studio by the same artisans who made your original ring.
- Complimentary cleaning and polishing a $150 service included at no additional cost. your ring comes back looking the way it did the day it arrived — the gold restored, the surfaces polished, the settings clear.
- Prong check and tightening every prong is inspected and tightened before the ring is returned. this is the step that protects the new stone and ensures the setting is secure for long-term daily wear.
- Free insured return shipping your upgraded ring is returned to you fully insured. the shipping is handled and covered — nothing additional to arrange.
choosing your diamond cut
two cuts are available through the upgrade program, both of which are central to the juwels & co toi et moi aesthetic.
- Emerald cut a rectangular step-cut stone with clipped corners and long, parallel facets that create a hall-of-mirrors effect rather than the sharp sparkle of brilliant cuts. elegant, elongated, and architecturally clear. the emerald cut reads as considered and confident — a stone that earns its attention through depth rather than flash.
- Pear cut a hybrid of the round brilliant and the marquise — a pointed tip at one end, a rounded base at the other. the pear cut is one of the most flattering shapes on the finger, elongating the hand and creating movement and softness in the silhouette. symbolic and graceful, it's been central to the toi et moi design since the original joséphine ring.
about lab-grown diamonds
lab-grown diamonds are chemically and physically identical to mined diamonds. they are made of carbon in a crystal lattice structure — the same material, the same hardness (10 on the Mohs scale), the same optical properties, the same brilliance. the only difference is origin: a lab-grown diamond is created in a controlled environment over weeks rather than formed underground over billions of years.
they are graded on the same GIA scale as mined diamonds — cut, color, clarity, and carat — and they are not simulants (which is what cubic zirconia and moissanite are). a lab-grown diamond is a diamond.
the advantages for the upgrade program are significant: lab-grown diamonds offer the same visual quality as mined diamonds at a more accessible price point, and they come with full traceability and no mining impact. for a piece that's already been crafted with intention, it's a fitting continuation of that standard.
how the process works
the upgrade process is straightforward. everything is handled through our los angeles studio with the same care as an original order.
- visit the diamond upgrade product page and select your preferred cut from the dropdown
- complete your purchase — special pricing is applied for existing juwels & co clients
- we'll email you with detailed instructions for returning your ring safely — fully insured packaging is included
- your ring arrives at our los angeles studio, where the stone is replaced, the ring is cleaned and polished, and every prong is checked
- your upgraded ring is returned to you with insured shipping — ready for its next chapter
different stone or custom shape?
the upgrade program covers pear and emerald cut lab-grown diamonds as standard options. if your ring has a different stone, a non-standard setting, or you'd like to explore a different diamond shape or size, we handle those as custom upgrades.
reach out directly at hello@juwels.co with details about your ring and what you have in mind — julia will walk through the options with you personally and let you know what's possible.
frequently asked questions
who is the diamond upgrade program for?
what diamond cuts are available?
are lab-grown diamonds real diamonds?
what is the quality of the lab-grown diamonds used?
what happens to my original stone?
how long does the upgrade take?
is my ring insured during the upgrade?
can I upgrade a ring that wasn't purchased from juwels & co?
your ring. its next chapter.
lab-grown diamond upgrade, complimentary cleaning and polish, prong check, and free insured return shipping — all included.