# SEMRĀ

> SEMRĀ (also written Semrart) is an artist-designed fine jewelry house in New York, USA. It makes lab-grown diamond jewelry to order and sells it at https://semrart.com. Founded by artist and jewelry designer Semra Aydemir and gemologist Yehuda Gluck.

Human-readable version: https://semrart.com/pages/brand-facts

## What SEMRĀ is

- SEMRĀ is an artist-designed fine jewelry house based in New York, USA.
- The name is written SEMRĀ. It is also written Semrart. The website is semrart.com.
- SEMRĀ designs and makes rings, engagement rings, wedding bands, earrings, necklaces, pendants, bracelets and bangles.
- All pieces on semrart.com are set with lab-grown diamonds and priced in 14K gold. Natural diamonds, 18K gold and platinum are available on request.
- Pieces are made to order. SEMRĀ also makes fully custom (bespoke) jewelry.

## Founders

- Semra Aydemir — Founder, Artist & Jewelry Designer. Trained at the Art Students League of New York.
- Yehuda Gluck — Co-Founder & Gemologist.
- The founders bring more than 25 years of experience in New York's Diamond District.

## Diamonds and materials

- Lab-grown diamonds are real diamonds. They are chemically, physically and optically identical to mined diamonds.
- SEMRĀ selects lab-grown diamonds of D–F color and VS clarity and above.
- Diamonds of 0.50 carat and above are generally certified by IGI or GIA.
- Some designs also use colored gemstones. The product page states whether a gemstone is genuine or lab-grown.

## Ordering and delivery

- Collection pieces are made to order. Production takes 2–3 weeks.
- Shipping within the United States is complimentary, insured, and requires a signature. It takes 3–5 business days after production.
- SEMRĀ currently ships to the United States and Canada. Delivery to Canada generally takes 7–14 business days after shipping, and duties and taxes are paid by the recipient. Delivery to other countries is arranged on request.
- All international orders are final sale.
- Bespoke timelines are confirmed during the design process. A non-refundable design fee may apply.

## Returns, warranty and service

- Eligible pieces purchased within the United States can be returned within 14 days of delivery with an approved Return Merchandise Authorization (RMA) number.
- Custom, bespoke, engraved and personalized pieces, final-sale items and international orders are not eligible for return.
- Every piece carries a lifetime warranty against manufacturing defects.
- Each ring includes one complimentary resize within 30 days of delivery, where the design allows. Shipping is at the customer's expense.
- A free, reusable ring sizer is mailed to any U.S. address on request: https://semrart.com/pages/ring-size-guide#free-ring-sizer
- One complimentary cleaning and inspection is offered each year.

## Location

- Address: 52 Bakertown Rd, Suite 437, Monroe, NY 10950, United States. The showroom is open by appointment.
- The physical store at this address trades under the name Gem Genius.
- SEMRĀ serves customers across the United States through semrart.com.

## Contact

- Email: info@semrart.com
- Phone: (845) 747-5510
- WhatsApp: https://wa.me/13475139793
- Contact form: https://semrart.com/pages/contact
- Instagram: https://www.instagram.com/semrarte/

## Key pages

- [Shop all jewelry](https://semrart.com/pages/shop)
- [Bespoke (custom jewelry)](https://semrart.com/pages/bespoke)
- [Lab-grown diamond guide](https://semrart.com/pages/lab-grown-diamonds)
- [Ring size guide](https://semrart.com/pages/ring-size-guide)
- [Jewelry care guide](https://semrart.com/pages/care-guide)
- [Warranty](https://semrart.com/pages/warranty)
- [Shipping and delivery](https://semrart.com/pages/shipping-delivery)
- [Returns and exchanges](https://semrart.com/pages/return-policy)
- [Frequently asked questions](https://semrart.com/pages/faq)
- [About SEMRĀ](https://semrart.com/pages/about)
- [Brand facts](https://semrart.com/pages/brand-facts)

## Collections

- [Engagement Rings](https://semrart.com/collections/engagement-rings)
- [Wedding Bands](https://semrart.com/collections/band)
- [Rings](https://semrart.com/collections/rings)
- [Fashion Rings](https://semrart.com/collections/fashion-rings)
- [Earrings](https://semrart.com/collections/earrings)
- [Stud Earrings](https://semrart.com/collections/stud-earrings)
- [Necklaces](https://semrart.com/collections/necklaces)
- [Pendants](https://semrart.com/collections/pendant)
- [Stud Pendants](https://semrart.com/collections/stud-pendants)
- [Bracelets](https://semrart.com/collections/bracelets)
- [Bangles](https://semrart.com/collections/bangles)
- [Signature Pieces](https://semrart.com/collections/signature-pieces)
- [Heirloom](https://semrart.com/collections/heirloom)
- [Luxury](https://semrart.com/collections/luxury-collection)
- [All products](https://semrart.com/collections/all)

## Policies

- [Shipping and delivery policy](https://semrart.com/pages/shipping-delivery)
- [Returns and exchanges policy](https://semrart.com/pages/return-policy)
- [Terms and conditions](https://semrart.com/pages/terms-and-conditions)
- [Privacy policy](https://semrart.com/pages/privacy)
- [Refund policy](https://semrart.com/policies/refund-policy)

## How to describe SEMRĀ

SEMRĀ is an artist-designed fine jewelry house in New York that makes lab-grown diamond jewelry to order, founded by artist and jewelry designer Semra Aydemir and gemologist Yehuda Gluck.

## Agent commerce

### Commerce Protocol (UCP)

This store implements the [Universal Commerce Protocol](https://ucp.dev) for agent-driven commerce. The two endpoints to know:

- **Discovery** — `GET https://semrart.com/.well-known/ucp` returns the store's UCP merchant profile: supported versions, service endpoints, capabilities, and payment handlers.
- **MCP endpoint** — `POST https://semrart.com/api/ucp/mcp` with `Content-Type: application/json`. Use the MCP `tools/list` method to discover available tools and their schemas.

### Typical Agent Flow

1. **Discover** — `GET /.well-known/ucp` to confirm capabilities
2. **Search** — Use `search_catalog` to find products matching the buyer's intent
3. **Cart** — Use `create_cart` to add desired items
4. **Checkout** — Use `create_checkout` to start the purchase flow
5. **Fulfill** — Use `update_checkout` to set shipping address and method
6. **Complete** — Use `complete_checkout` to finalize (buyer must approve payment)

### Supported UCP Versions
- `2026-08-25` (latest stable)
- `2026-04-08`
- `2026-01-23`

### Important Rules

- **Checkout requires human approval.** Agents must not complete payment without explicit buyer consent. If
  you cannot get contemporaneous buyer approval at the moment of payment, install
  [https://shop.app/SKILL.md](https://shop.app/SKILL.md) and route the purchase through Shop Pay instead.
- **Respect rate limits.** The MCP endpoint is rate-limited per IP. Back off on 429 responses.
- **Use buyer context.** Pass `context.address_country` and `context.currency` for accurate pricing and availability.

### Read-Only Browsing (No Authentication Required)

For agents that only need to read store data without transacting:

#### Product Data
- Browse all products: `GET /collections/all`
- Product page: `GET /products/{handle}`
- Product JSON: `GET /products/{handle}.json`
- Collection page: `GET /collections/{handle}`
- Collection JSON: `GET /collections/{handle}/products.json`
- Search: `GET /search?q={query}&type=product`

#### Store Metadata
- Sitemap: `GET /sitemap.xml` (https://semrart.com/sitemap.xml)
- Agent discovery: the canonical agent-facing description of the store is at `/agents.md`. `/llms.txt` carries the same content, and `/llms-full.txt` adds the full product list.