Maiden Stone is an experienced team from sales, to operations and management. We are committed to excellence in the caliber of our service and quality of the stone. Each person works for the same goal, no matter their role, to provide exquisite stone materials that exceed client expectations.
Sandra Jonas Desguin founded Maiden Stone, Inc. in 2003 with an entrepreneurial vision to redefine how premium natural stone is sourced, managed, and delivered. Under her leadership, Maiden Stone has grown into a nationally recognized supplier serving some of North America’s most distinctive residential, commercial, and hospitality projects.
A graduate of Carnegie Mellon University, Sandra began her career in New York City before combining her entrepreneurial drive with a passion for natural stone to build Maiden Stone from the ground up. Her commitment to quality, innovation, and long-term relationships continues to shape the company’s culture and reputation.
Having lived in more than 13 cities across six countries and traveled extensively throughout the world, Sandra brings a global perspective to every project. Her longstanding relationships with leading quarries and fabrication partners have established Maiden Stone as a trusted resource for architects, designers, builders, and discerning homeowners.
Today, Sandra continues to lead Maiden Stone by cultivating strategic global partnerships, sourcing exceptional materials, and ensuring every project reflects the company’s commitment to technical expertise, collaboration, and uncompromising quality.
Martin is a Civil Engineer with more than ten years of experience leading complex infrastructure and construction projects.
He has successfully managed multidisciplinary teams while coordinating with clients, consultants, contractors, and international partners to deliver projects on schedule and within budget.
Martin has a strong foundation in project planning, quality management, and technical coordination, supported by extensive experience in construction oversight and infrastructure development.
His collaborative leadership style, attention to detail, and commitment to delivering exceptional results make him a valuable resource for both clients and project teams.
Carlos is a Sales Coordinator with experience supporting architects, contractors, builders, and project teams throughout the natural stone procurement and construction process.
He works closely with clients and internal teams to coordinate project inquiries, sample requests, estimating, logistics, and project follow-up from initial concept through material delivery.
Carlos brings a strong customer-focused approach, exceptional organizational skills, and a commitment to clear communication, helping ensure projects move forward efficiently while providing responsive support to clients and partners.
His attention to detail, proactive follow-up, and collaborative mindset make him a valuable resource for both project teams and customers.
Amelia manages Maiden Stone’s extensive natural stone library, ensuring that every sample is organized, cataloged, and readily available to support architects, landscape architects, designers, and clients throughout the material selection process.
Working with stone samples from quarries across the globe, Amelia maintains detailed records of each material’s characteristics, finish, and provenance while coordinating sample requests and continuously expanding the library with new additions. Her meticulous attention to detail ensures that the library remains an accurate and dependable resource for both the design community and the Maiden Stone team.
Amelia’s work plays an important role in every project. By maintaining the integrity and organization of the company’s stone collection, she helps clients confidently evaluate materials and supports Maiden Stone’s commitment to exceptional quality, service, and craftsmanship.
Michael is an Architect and brings more than 45 years of experience in architecture, construction, real estate development, and natural stone. Before joining Maiden Stone, he served as a Principal with Kendall/Heaton Associates, leading the planning and design of complex architectural projects, and later as an executive with Hines, where he directed conceptual construction for major commercial development projects across North America.
At Maiden Stone, Michael leads the company’s most complex custom natural stone projects, serving as the bridge between owners, architects, contractors, quarries, and international fabrication partners. From design coordination and shop drawing development to quality assurance, production, and logistics, he oversees every stage of the process to ensure the original design intent is successfully realized.
Michael’s unique background in both design, construction, and development allows him to anticipate challenges, coordinate diverse project teams, and resolve complex technical issues long before they impact schedule, budget, or quality. This collaborative, hands-on approach distinguishes Maiden Stone from traditional stone suppliers by providing clients with a trusted project partner who helps manage risk, streamline execution, and deliver exceptional architectural stonework with confidence.
Laura brings a strong background in project management, process improvement, and operational excellence to Maiden Stone. With a Master’s degree in Corporate Social Responsibility and Sustainability and a Bachelor’s degree in Industrial Engineering, she combines analytical thinking with exceptional organizational skills to support the successful execution of complex natural stone projects.
Prior to joining Maiden Stone, Laura held project management and process improvement roles across manufacturing, engineering, and international conference management, where she developed expertise in coordinating multidisciplinary teams, standardizing processes, managing schedules, and implementing operational improvements.
At Maiden Stone, Laura works closely with clients, architects, contractors, and fabrication partners to coordinate project documentation, schedules, and communications. Her attention to detail, proactive approach, and commitment to continuous improvement help ensure projects are delivered efficiently and with the exceptional level of service that defines Maiden Stone.
Known for her positive attitude, collaborative spirit, and dedication to excellence, Laura is passionate about helping clients achieve successful project outcomes while continually improving the processes that support Maiden Stone’s growth.
Diana is finance and administrative manager at Maiden Stone with a strong background in financial operations, accounting, budgeting, reporting, and project coordination.
She plays a key role in supporting the financial and administrative coordination of projects, helping ensure important details are organized, accurate, and communicated clearly from start to finish.
She has extensive financial management experience, including work supporting U.S. Department of the Air Force operations in budgeting, reporting, compliance, funding documentation, payment accuracy, and financial analysis for high-value programs.
Diana holds a Master’s degree in Accounting & Financial Management and a Bachelor’s degree in Accounting with a minor in Business Administration.
Her organized approach, financial expertise, and commitment to clear communication help support efficient project execution and exceptional service for both clients and project teams.
Valeria is an Architect with extensive experience in construction management, estimating, budgeting, and project coordination.
She has contributed to a wide range of commercial, residential, institutional, and industrial projects, supporting every phase from planning and design through procurement and construction.
Valeria also holds an MBA in Business Administration and Construction Project Management and combines strong technical expertise with a detail-oriented, collaborative approach.
Her focus on organization, cost control, and efficient project execution helps ensure clients receive exceptional service and successful project outcomes.
Juliana is a Project Coordinator with a background in civil engineering and more than nine years of experience managing construction, infrastructure, and maintenance projects.
She has successfully coordinated complex projects from planning through execution, overseeing schedules, budgets, procurement, and communication among clients, contractors, and project teams.
Juliana holds a Master’s degree in Civil Construction and a Bachelor’s degree in Civil Engineering.
Her organized, collaborative approach and strong technical foundation help ensure projects are delivered efficiently and with exceptional attention to detail.