Short answer: expect to pay roughly AU$60–$120 for new D–K cup bras in Australia, with many good-quality full-cup and specialist-brand styles around AU$80–$100. Luxury/designer or specialised fit models can be higher, and sale items or basic styles can be fall to ~AU$40–60. (notjustbras.com.au)

Quick breakdown and what affects price

• Typical mid‑range specialist brands (Elomi, Fantasie, Panache, etc.): ~AU$80–$100 per bra — these brands commonly stock F–K cups and target full support. (notjustbras.com.au)
• Department / chain / value options and sale prices: ~AU$40–$80 (sales often reduce prices substantially). (Zodee.com.au)
• Higher-end / fashion / luxury (designer lingerie, boutique collections): often AU$120+ depending on fabric and detailing. (General market observation.) (Femmeline.com.au)
• Sports bras for large cups / specialised nursing / custom-fit bras can also cost AU$80–150+. (Femmeline.com.au)

Where to shop (Australian retailers that stock D–K cups)

• Specialist boutiques / online stores: Curvy, Not Just Bras, PlusSizeBras, Curvy (stock F–K and above). These list many sizes and often have free exchanges or fitting help. (Curvy.com.au)
• Department stores/marketplaces and independent retailers: prices and size ranges vary; watch for Afterpay/Zip and regular sales. (Zodee.com.au)

Tips to get the best price

• Check specialist retailers for free fit help / virtual fittings (reduces returns). (Curvy.com.au)
• Wait for seasonal sales or check the clearance sections — many full‑cup bras drop to AU$40–60 in sales. (Zodee.com.au)
• Consider buying last season’s colours/styles from reputable outlets — fit is the key, not the season. (General shopping advice.)

If you want, I can:

• Search specific current prices for a particular brand (e.g., Elomi, Fantasie, Panache, Curvy Kate) and set of cup sizes (D, E, F … K) and give links to exact models and prices available in Australia right now.