Philosophy: The Diamond Trust Seal is not awarded to a salon that is merely excellent; it is bestowed upon a living work of art—a place where excellence is the default standard and the client experience is utterly impeccable.

PREREQUISITE: The salon must have held the Gold Trust Seal for at least six months and maintained an excellent score before being considered for Diamond status.

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CORE CRITERIA (Must achieve a score of ~98-100%)

1. TECHNICAL SKILL & ARTISTRY (Must Achieve PERFECTION)

· Absolute Precision:
· Zero observable technical flaws: no polish on the skin, cuticles cleaned to perfection, perfectly straight lines.
· Nail shape is sculpted to be balanced and flattering to the unique shape of each client's hands.
· Masterful Artistry & Innovation:
· Possesses at least three exclusive, complex nail art designs (e.g., intricate illustrations, 3D sculpting, advanced mixed-media techniques) executed flawlessly.
· Technicians demonstrate the ability to consult and create custom designs based on the individual personality and requests of the client.
· Exceptional Longevity:
· Gel manicures must remain in perfect condition (no chipping, lifting, filing, or color fading) for a minimum of three weeks.

2. HYGIENE, SAFETY & HEALTH (Zero Tolerance)

· Sterile Environment:
· All non-disposable tools (nippers, cuticle pushers) must be sterilized in an autoclave and presented in sterile packaging for each client.
· A fully documented log for equipment sterilization and maintenance must be available.
· "Clean Room" Standards:
· Not a single speck of dust or stray hair can be found in the working area. Nail stations are sanitized with medical-grade alcohol before and after every client.
· The ventilation system must ensure no lingering chemical odors.

3. SERVICE & EMOTIONAL EXPERIENCE (Highly Personalized Service)

· Faultless Guest Reception:
· Clients are greeted by name and welcomed warmly at the door. The entire process is personalized (e.g., remembering preferred beverages, seating preferences for regular clients).
· Expert-Level Knowledge:
· Technicians can clearly explain the chemical composition of products used, their benefits, and provide detailed aftercare advice.
· Offers complimentary nail health consultation services.
· Absolute Consistency:
· The service experience must be identical whether the client visits during peak or off-peak hours and regardless of which technician performs the service.

4. SPACE & ARCHITECTURE (An "Aesthetic Sanctuary")

· Distinctive & Impressive Design:
· The space must have a clear interior design concept, evoking the feeling of an art gallery or a relaxation oasis.
· Each station is arranged to ensure maximum privacy and comfort.
· Luxury Amenities:
· Provides exceptional, high-end amenities (e.g., cashmere throws, wireless headphones, premium wines, fine porcelain teacups).