Diana Soleil Design Studio partners with fashion brands and founders to create collections with a couture level of finish — concept, illustration, boards, and technical design, all conceived and drawn in-house, never outsourced.

Diana Soleil Design Studio is a Montréal atelier founded and led by designer Diana Soleil. For over a decade, the studio has designed collections, illustrated campaigns, and engineered technical packages for fashion brands across womenswear, couture, swim, active, and accessories.

The studio works the old way: one designer's eye across every deliverable. Every sketch, board, and tech pack is drawn by the founder herself — that is how a project keeps its vision from first meeting to final stitch.

One studio, consultation to spec

The story & brand

Mood, trend, and brand boards build the world your collection lives in — the story buyers and press understand instantly.

Step 1

The consultation

Every commission opens with strategy — your brand, your customer, your market and price point, understood before anything is drawn.

Step 2

The technical

Flats, tech packs, and 3D samples carry the design to the factory floor intact — no guesswork, no drift.

Step 3

The design

Hand-drawn illustration and range design give every piece its character — silhouettes, fabrication, and colorways as one collection.

Step 4

New Collection

  • A digital illustration of a woman with long black hair, wearing a black dress with puffed sleeves adorned with small, white, glowing dots.

    Heiress RTW

  • Illustration of a woman with black hair and makeup, wearing large pink earrings, a pink coat with a patterned lining, matching patterned pants, holding a small black purse with pink lights, all set against a plain white background.

    Heiress RTW

  • An illustration of a woman with black hair, wearing a beige outfit with gold accents, standing against a plain background.

    Heiress RTW

  • A digital illustration of a woman with long black hair, fair skin, and makeup, wearing an oversized taupe or brown coat with stitched detailing.

    Heiress RTW

  • A digital illustration of a woman with black hair, wearing a brown wide-leg pants and a matching oversized top with a patterned shawl or wrap draped over her shoulders.

    Heiress RTW

  • A digital illustration of a woman with dark hair, wearing earrings, a brown cape with glowing dots, a blue top with a fish scale pattern, and a dark skirt with a belt.

    Heiress RTW

Our Fashion Design Services

  • A fashion designer's workspace with sketches of dresses on the wall, mannequins, fabric rolls, sewing machine, cutting table, and scattered fabric swatches and papers on the floor.

    Start-Up Consultation

    Consultation Fee: $150/h

    Our start-up consultation services are all about helping you turn your fashion business dreams into reality. We understand that starting a fashion business can be a daunting task, and we're here to guide you through every step of the process. We have a team of experienced fashion business consultants who are passionate about fashion and dedicated to helping you succeed.

    Start-Up
  • Collage of fashion images showcasing black leather outfits, including runway models, illustrations of women's fashion, and fabric textures, promoting Tom Ford's 2024 collection with a focus on leather in denim style.

    Presentations & Linesheets

    Starts at $150

    Our detailed fashion design mood boards and presentations weave captivating visual stories, immersing clients in inspiration and creativity. With a meticulous selection of images, textures, colors, and fabric swatches, our mood boards evoke a specific atmosphere and emotion, guiding clients through our design journey.

    Presentations
  • Fashion presentation of two dresses on mannequins titled 'Heiress' showcasing New York City Girl style. The left dress features a sparkling, embellished crop top with beige pleated asymmetrical skirt with a large decorative belt. The right dress is a black and white gown with puffed sleeves, cut-out neckline, and satin skirt. Left side displays fabric swatches labeled 'sparkly fabric' and 'cotton'; right side shows swatches labeled 'wool' and 'organza'.

    Design Creation

    Starts at $200

    The fashion design concept is an exquisite fusion of elegance and boldness, tailored to fulfill the unique desires of our discerning clients. Drawing inspiration from diverse cultures, we intricately blend luxurious fabrics, vibrant colors, and avant-garde silhouettes to create garments that transcend trends and embrace individuality.

    Design
  • Collage of women in swimsuits, swimwear and beach scenes at sunset and on a boat, with text "Waterlily" and

    Trend Forecasting

    Starts at $150

    Fashion trend forecasting involves analyzing current styles and predicting future trends, helping designers stay ahead in the industry. Our presentations offer detailed insights into upcoming fashion trends, providing valuable guidance for design decisions.

    Trend Forecasting
  • Illustration of various activewear clothing pieces including long sleeve tops, leggings, sports bras, shorts, and pants for women, with a central fashion model showing an athletic outfit.

    Technical Design

    Starts at $350

    The fashion design technical designs and sketches serve as the foundation for any manufacturing process. We meticulously map out fabric placements, closures, and trims, ensuring seamless integration of all elements. Our technical drawings also incorporate accurate measurements, allowing for precise fit and proportions.

    Technical Design
  • Technical sewing pattern diagram for a women's dress, showing front and back views with detailed instructions for stitching, seam allowances, darts, hem, labels, and construction notes.

    Grading and Spec

    Starts at $150

    We specialize in providing personalized solutions for clothing grading and size chart creation, tailored to meet the unique needs of our clients. With our expertise in garment construction and industry standards, we ensure that your designs are accurately scaled.

    Grading
  • Collection of men's outdoor jackets, including a blue patterned windbreaker, a color-blocked green, brown, and cream jacket, a beige windbreaker with navy logo, a blue hoodie jacket, a brown pullover with a front pocket, and a beige and white quarter-zip pullover.

    Menswear Design

    Starts at $200

    Elevate your brand with our comprehensive Men's Wear Design Services. We specialize in creating presentation boards, mood boards, and offering top-tier creative direction and design. Our design services blend creativity with practicality. We create stylish, contemporary men's wear that meets modern consumer demands, from initial sketches to final prototypes.

    Men Design Projects
  • Six female 3D models dressed in various fashion outfits, including dresses, skirts, and sporty clothing, standing against a neutral background.

    3D Design

    Starts at $500

    We understand that the future of fashion lies in the realm of 3D design. With our in-depth knowledge and mastery of 3D modeling software, we bring your creative visions to life like never before.

    3D Design
  • Design illustration of a sporty, multicolored jacket with a zigzag pattern in beige, light blue, and purple. It features a high collar, zipper front, zippered pockets, and adjustable drawstrings at the hem and hood. The image includes close-ups of the jacket's front zipper and collar, highlighting its construction and features.

    Textile Prints+AOP

    Starts at $500

    We possess a unique ability to blend artistry and technical expertise, resulting in textiles that elevate and define your brand's aesthetic. Our team of skilled designers curates distinctive patterns and textures, infusing your fashion creations with personality and allure.

    Textile Prints+AOP
  • A collage showcasing a boy dressed in cozy earth-tone clothing, alongside various children wearing casual outfits with earth tone colors and simple prints, set against natural and neutral backgrounds indicating a fall or autumn theme.

    Kid's Fashion

    Starts at $200

    With a wealth of experience in the fashion industry, our consultancy specializes in designing enchanting children's wear that combines creativity and functionality. From the initial sketch to the meticulous technical design phase.

    Children's Design
  • Display of three vegan handbags with butterfly embellishments, each with different designs and colors, on a pedestal with a plant backdrop and the brand name 'SORRIS' at the bottom.

    Handbags + Accessories

    Starts at $200

    The handbag design services are all about creating unique and functional bags that are both stylish and practical. We understand that a great handbag is more than just an accessory - it's an extension of your personal style and an essential part of your daily life.

    Handbags
  • Nine digital illustrations of female figures wearing various modern, colorful outfits, arranged in three groups on backgrounds of different colors.

    Sportswear Design

    Starts at $200

    As a design service business specializing in gym wear collections, we prioritize a comprehensive approach to meet our clients' needs efficiently. We begin by deeply understanding our client's brand identity, target audience, and objectives, ensuring that our designs align perfectly with their vision.

    Sportswear

Collections Created For:

Get in touch.

We understand the importance of collaboration and value your unique perspective. Our personalized consultations ensure that we truly grasp your vision, allowing us to provide tailored solutions that exceed your expectations. From concept development and fabric selection to garment construction and production, we offer comprehensive services to make your fashion dreams a reality.

Ready to embark on a transformative fashion journey? Reach out to us today via the contact form below.