Below are the top websites and apps Singapore shoppers use for luxury fashion, grouped by type with a short note on what each is best for and practical tips (shipping, authenticity).

Global luxury e‑tailers (new designer pieces)

• Net‑A‑Porter — curated, editorial-led selection of high‑end womenswear; popular with Singapore shoppers for new-season drops and fast international service. (buyandship.com.sg)
• Farfetch — marketplace that links boutiques worldwide; excellent for hard‑to‑find/limited pieces and a very wide brand range (has a dedicated Singapore storefront). (brandradar.org)
• MatchesFashion — curated luxury retailer with strong editorial content and global delivery options (good customer service and styling edits). (brandradar.org)
• Mytheresa — European luxury e‑tailer known for premium brands and fast express shipping options to SG. (brandradar.org)
• SSENSE — favoured for designer streetwear and menswear; ships internationally to Singapore. (buyandship.com.sg)

Regional / Singapore-focused multi‑brand sites and department stores

• ZALORA (Luxe) — Singapore’s major local e‑commerce platform with a dedicated “Luxury/Luxe” section; convenient local fulfilment, promotions and easier returns in SG. (ZALORA.sg)
• Club21 / local multi‑label boutiques (online or via Farfetch) — Singapore‑based curations of mid‑to‑high luxury designers (good for regional exclusives). (brandradar.org)
• The Shoppes at Marina Bay Sands / Takashimaya online listings — online catalogues for Singapore flagship boutiques when you want to buy directly from local brand stores. (shoppes.marinabaysands.com)

Pre‑owned & resale (authenticated second‑hand)

• Vestiaire Collective — leading peer‑to‑peer authenticated marketplace for pre‑owned designer goods (authentication and buyer protection). (brandradar.org)
• Reebonz (Singapore‑founded) — long‑standing APAC luxury marketplace for new and pre‑owned items (check current platform status and trust/reviews before big purchases). (en.wikipedia.org)
• The RealReal / Chrono24 — specialist resale for luxury fashion and watches (international players; good authentication processes). (brandradar.org)
• Carousell (Carousell Luxury) — Singapore classifieds/second‑hand app with a busy luxury market and buyer protections for local peer sales. (brandradar.org)

Brand flagship sites and boutiques

• Individual brand e‑stores (Gucci, Louis Vuitton, Prada, Hermès, Chanel, etc.) — best for guaranteed authenticity, after‑sales service and official warranties; many brands operate Singapore sites or ship to SG but policies vary by house. (brandradar.org)

Quick tips when shopping luxury in/for Singapore

• Check whether checkout is DDP (Delivery Duty Paid) — DDP means duties/GST are included so there are no surprise import fees on delivery. Many large global luxury e‑tailers indicate DDP/SG shipping options at checkout. (brandradar.org)
• For pre‑owned, prefer marketplaces that do physical authentication (Vestiaire, The RealReal) or buy from established local sellers with good ratings. (brandradar.org)
• If you want the absolute safest route for new items and after‑sales service, use the brand’s official Singapore boutique/site or large authorised retailers listed above. (shoppes.marinabaysands.com)

If you’d like, I can:

• Narrow this to the single best site for a specific designer or item (e.g., Hermès bag, Bottega Veneta shoes), or
• Check whether any of these sites currently offer DDP to Singapore and what estimated delivery times/return windows are (I can look these up for each site now).

Which follow‑up would you like?