Yes. Our laboratory-grown diamonds are diamonds, not cubic zirconia, moissanite, or imitation stones. They share the essential chemical, physical, and optical properties of natural diamonds; the difference is their origin. Learn more in our diamond guide.

Maison Piet pieces are crafted in solid 14K gold unless a product page expressly states otherwise. The gold alloy continues throughout the piece—we are not selling gold-plated or vermeil jewelry as solid gold.

Pure 24K gold is exceptionally soft. Fourteen-karat gold combines meaningful precious-gold content with the strength needed to support delicate prongs, clasps, and diamond settings through regular wear. It is a considered choice for beauty, security, and longevity.

An IGI report is an independent gemological record documenting a diamond’s laboratory-grown origin and quality characteristics, including the Four Cs where applicable. When a Maison Piet product is described as IGI certified, its report accompanies or corresponds to that piece. Read our IGI guide.

No. Very small accent, pavé, and melee diamonds are typically evaluated and matched as groups rather than individually submitted for separate laboratory reports. Certification is identified clearly on each applicable product page.

Availability and estimated production timing are listed on the applicable product page. Made-to-order, modified, and bespoke pieces may require additional time. We will communicate material timing information before shipment.

Maison Piet shipments are insured while in transit. Delivery requirements may vary based on order value and destination, so please review the tracking and delivery instructions provided with your order.

Return eligibility depends on the piece and whether it was standard, modified, or bespoke. Please review our Shipping & Returns policy before purchasing. Customized, altered, and bespoke pieces may have different terms.

Contact us as soon as possible. Once sourcing, manufacturing, sizing, engraving, or another customization has begun, changes or cancellation may no longer be possible.

International availability may depend on destination, insurance, customs, and the individual piece. Please contact us before ordering so we can confirm whether delivery can be arranged.

We welcome bespoke inquiries and consider each project individually. Maison Piet works with design specialists, skilled manufacturers, and trusted stone sources in the United States and overseas to explore original pieces and thoughtfully reimagined classics. Begin with our Bespoke inquiry form.

Possibly. Available modifications depend on the design, setting, materials, and production stage. Submit a bespoke inquiry or contact us before placing the order so we can evaluate the request.

Bespoke and materially customized pieces are created specifically for one client and may be final sale. The applicable project terms, payment schedule, and return eligibility will be provided for approval before production begins.

Store pieces separately, avoid abrasive cleaners and harsh chemicals, and remove fine jewelry before swimming or heavy exercise. Clean gently with warm water, mild soap, and a very soft brush. Frequently worn prongs, clasps, and settings should be professionally inspected. See our care guide.

Most Maison Piet bespoke pieces require approximately eight weeks of production after the final design, materials, pricing, and payment terms have been approved. Because every commission is individually designed, sourced, and manufactured, timing may vary based on stone availability, complexity, revisions, certification, and the specialists involved. We will provide a project-specific estimate before production begins.

Yes. Although Maison Piet’s core collection celebrates laboratory-grown diamonds, the Atelier can source natural diamonds and precious gemstones for bespoke commissions. We work with trusted stone sources in the United States and overseas, and independently graded or certified stones will be identified as such whenever certification is applicable.

Every commission begins with an inquiry and conversation about your vision, preferred materials, scale, timeline, and investment range. If the project aligns with our capabilities, we collaborate with design specialists, manufacturers, and stone sources to develop the concept, confirm feasibility, and present the proposed path to production.

Yes. The Atelier can consider requests involving a particular shape, carat weight, color, clarity, origin, certification, or gemstone variety. Availability and pricing depend on the market and the exact characteristics requested.

After the design direction, materials, stone selection, manufacturing requirements, and scope of work are sufficiently defined, Maison Piet will provide the applicable project terms and estimated timeline for approval. Production begins only after the required approvals and payment arrangements are complete.