Our Certifications & After-Sales Service

Confidence That Lasts a Lifetime

A Luminesse jewel is an investment in beauty, quality, and enduring value. We stand behind every piece with independent certification and dedicated aftercare – because your trust is our most important creation. 

Independent Diamond & Gemstone Certification
Every laboratory-grown diamond in our collections over 0.50 carats is accompanied by a full grading report from an internationally respected gemological laboratory, such as the International Gemological Institute (IGI) or the Gemological Institute of America (GIA) . These reports verify the stone's laboratory-grown origin and detail its exact specifications: carat weight, color, clarity, cut quality, and proportions.

For our laboratory-grown colored gemstones (sapphires, rubies, and emeralds), we provide reports from reputable gemological labs that confirm species, variety, and growth method. We believe that transparency is the foundation of the modern jewelry industry. With Luminesse, you never guess – you know.

Our Craftsmanship Guarantee
We warranty our workmanship against manufacturing defects. Should your piece require attention due to a fault in materials or production, we will repair or replace it at no cost within the warranty period. This guarantee covers setting integrity, metalwork, and the structural durability of your design.

Naturally, fine jewelry requires mindful care. Our warranty does not cover normal wear and tear, loss, accidental damage, or modifications by third parties, but our repair services are always available to you.

Lifetime Aftercare & Maintenance
We want your Luminesse piece to remain as brilliant as the day it arrived. We offer complimentary cleaning and inspection services to clients within a certain period, and we provide a range of aftercare services for the lifetime of your jewelry:

Professional cleaning and rhodium plating for white gold pieces

Prong tightening and stone security checks

Ring resizing to accommodate life's changes

Repair and restoration for pieces that have endured heavy wear

For our bespoke clients, we maintain a digital archive of your original design files, renderings, and gemstone specifications, ensuring that future alterations or recreations can be made with complete accuracy.

Global Service for Our Global Clients
We serve clients across the United States and Europe. Our customer care team is available via email, video consultation, and messaging to assist you wherever you are. We coordinate insured, trackable shipping for all repairs and returns, and we are building a network of recommended local jewelers in key cities for routine care. Your jewelry may travel, but its care never leaves our hands.

Let Us Care for Your Piece
To initiate a repair, schedule a cleaning, or inquire about any aspect of your jewelry's documentation, simply reach out to our client care team. We respond with the same attention and craftsmanship that built your jewel.