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    Wagyu Sirloin SB 6-7

    (1)
    $325.00

    The Diamantina Wagyu Sirloin showcases fine dining quality beef, hand-selected from our SB 6-7 marble score range. Known for its balance of tenderness and bold beef flavour, this cut is ideal for creating perfectly portioned steaks or roasting whole for a luxe centerpiece.

    Portion Size

    Pickup available at Peter Augustus Store Camp Hill

    Usually ready in 24 hours


    Buy Diamantina Wagyu Sirloin SB 6-7

    Pure Indulgence in Every Slice

    Experience an extraordinary eating experience with our Diamantina Wagyu Sirloin SB 6-7. Our premium Australian Wagyu Beef Sirloin, known for its rich buttery marbling and intense depth of flavour, offers a perfect balance of bold flavour and refined tenderness. Our Wagyu Sirloin, graded with a marble score of 6-7, ensures a texture that melts in your mouth, making it ideal for grilling, barbecuing, and pan-searing. Priced at $55.00, $325.00, or $625.00, depending on weight, our boneless cut Wagyu promises a fresh, chilled delivery straight from Australia's finest sources.

    Buyers choose our Wagyu Sirloin for its unmatched quality and superior cooking performance. Perfect for culinary enthusiasts and professional chefs alike, our Wagyu Top Sirloin Steak satisfies those seeking a distinguished dining experience at home. Rest assured, the combination of breed quality, marble score, and Australian origin makes our Wagyu Sirloin a worthwhile purchase. Shop with confidence, knowing you are investing in premium taste and texture.

    Product Highlights

    • Premium Wagyu Sirloin Steak
    • Exceptional marbling and tenderness
    • Ideal for grilling, barbecuing, or pan-searing
    • Boneless and portioned for consistent results
    • Vacuum sealed and delivered chilled

    Why Choose Wagyu Sirloin SB 6-7?

    Our Wagyu Sirloin SB 6-7 stands out for its rich buttery marbling and refined tenderness that guarantees an extraordinary eating experience. 

    • Grade/Marble Score: 6-7
    • Boneless cut type
    • Origin: Australia
    • Breed: Wagyu

    Best Cooking Methods for Wagyu Sirloin

    Our Wagyu Sirloin, known for its rich buttery marbling, promises an extraordinary eating experience. The ideal cooking methods for this premium Australian Wagyu Sirloin include techniques that allow the fat to render perfectly, enhancing its intense depth of flavour. Pan-searing, grilling, barbecuing, and oven roasting are optimal for achieving the perfect balance of bold flavour and refined tenderness.

    Pan Sear: Use a hot skillet to sear our Wagyu Sirloin Steak for 3-4 minutes per side. Rest for 5 minutes to maintain juiciness.

    Grill: Preheat to medium-high and grill Wagyu Beef Sirloin for 4-5 minutes per side. Let it rest to flavour.

    BBQ: Cook on a medium heat for 5-6 minutes per side. Resting for 5 minutes ensures a tender bite.

    Oven: Preheat to 200°C and roast for 10-12 minutes for medium-rare. Allow the Wagyu Top Sirloin to rest before serving.

    Who chooses Wagyu Sirloin SB 6-7?

    Our Wagyu Sirloin SB 6-7 is ideal for those seeking premium quality beef that offers a rich flavor and tender texture. Its versatility makes it suitable for various culinary applications, enhancing any dining experience.

    • Chefs looking to impress with a luxurious steak dinner
    • Home cooks aiming for their barbecue gatherings
    • Food enthusiasts desiring an extraordinary eating experience
    • Grilling aficionados want a steak that cooks to perfection
    • Anyone interested in exploring the depth of Wagyu flavors

    Delivery & Storage

    Delivered chilled and vacuum sealed for maximum freshness, flavour, and quality.
    Carefully packed in insulated packaging to maintain the cold chain during transit.
    Store refrigerated at 0–4°C.
    Consume by the recommended use-by date, or freeze on arrival for extended storage.
    Thaw under refrigeration before use for best results.
    Do not refreeze once thawed.

    The Wagyu Sirloin SB 6-7 is the ultimate steak experience, pure indulgence for those who demand the very best from their beef.

    Striploin

    Striploin, also known as Sirloin, New York Strip, or Porterhouse (when bone-in), is a premium cut prized for its bold flavour and balanced tenderness. It comes from the short loin of the cow and features a fine grain with a satisfying bite. It's a favourite among chefs and home cooks alike for its generous marbling and robust, beefy taste.

    Frequently Asked Questions

    Our Beef

    Where does our beef come from?

    All of our beef is from our parent company Stanbroke Beef. This is important as the quality of the beef and ultimately your eating experience is determined by the care that has been shown to the animal during each stage of the production process. Any undue stress the animal experiences at any stage of its life is detrimental to the beef it will produce.

    As Stanbroke owns and operates each stage of the production process, strict best practices are followed to ensure the animals always receive the highest of care and that’s why at Peter Augustus we can guarantee the quality of our product each and every time.

    SB Marble Scores

    What is an SB Marble Score?

    The SB Score measures intramuscular fat (the white flecks in the meat). Higher scores mean more marbling, which results in superior tenderness, juiciness, and a richer, buttery flavour.

    Which score should I choose?

    • SB 0–2: Leaner, traditional beef flavour with a robust texture.
    • SB 3–5: Our "everyday premium" level; a perfect balance of flavour and tenderness.
    • SB 6–10: The indulgent peak, featuring extreme marbling for a melt-in-your-mouth experience.

    Meat Quality & Colour

    What is vacuum sealing and how does it extend shelf life?

    Vacuum sealing removes air from the packaging, slowing oxidation and bacterial growth to extend freshness and shelf life. When stored correctly at 0–4°C, you can expect the following guide:

    • Beef primals & whole cuts: up to 28 days
    • Beef (steaks): up to 21 days
    • Beef (bone-in): up to 14 days
    • Lamb: up to 28 days
    • Pork: up to 10 days
    • Ham: up to 30 days
    • Sausages: up to 9 days
    • Chicken (frozen): up to 12 months
    • Salmon (frozen): up to 12 months
    • Smoked salmon: up to 30 days

    For longer storage, keep products frozen at -18°C, where vacuum sealed meat can last 1 to 3 years depending on the cut and consistency of temperature.

    Once opened, the shelf life reverts to that of standard fresh products, so we recommend consuming promptly.

    For longer delivery routes, some items may arrive partially or fully frozen to ensure they remain within safe temperatures during transit.

    Why is my steak dark in the vacuum pack?

    Our beef is vacuum sealed to lock in freshness and extend shelf life by removing oxygen. This can cause the meat to appear darker or slightly purplish due to natural myoglobin, which is completely normal.

    Once opened, simply let your steak rest out of the packaging for 10 to 20 minutes. As it’s exposed to air, it will “bloom” back to its natural rich red colour. Rest assured, your beef is fresh and perfectly safe to enjoy.

    Is it safe to eat?

    Yes. If the “Use By” date is within range your meat is fresh. Any colour variation from vacuum sealing is normal and will return to its natural red once opened and allowed to bloom.

    Delivery & Packaging

    What are your delivery fees?

    We offer a range of pickup and delivery options to suit you:

    • Free pickup is available from our Camp Hill store in Brisbane. Simply select pickup at checkout.
    • Free shipping is available on subscription-only orders.
    • Free shipping is automatically applied to orders over $200.
    • Refrigerated delivery starts from $30 (including GST), with final pricing based on your location, order size, and weight. Enter your address at checkout to calculate the exact rate.

    All delivery orders are packed in a food-safe, insulated chilled box with ice packs to maintain safe temperatures throughout transit.

    Can I request custom cutting instructions?

    Yes, our butchers are happy to accommodate custom cutting requests where possible and safe to do so. For example, you may like a rump cap portioned into steaks. Simply specify your preferred thickness or weight per piece, such as approximately 2.5cm or 300g portions.

    You can add these instructions in the “View Cart” section before checkout using the notes box or send them through to us via email.

    How is my order kept cold?

    We use specialist refrigerated courier partners to keep your order within the cold chain from dispatch to delivery. Each order is packed in a thermal carton lined with VISYCELL® sustainable insulation, a food-grade, biodegradable material designed to maintain a consistent chilled temperature throughout transit.

    We also include large 1kg ice gel packs in every box to help keep your products at optimal temperature. Our packaging has been tested to maintain safe temperatures for a few hours after delivery when left in a shaded area.

    My box arrived looking a bit scuffed. Is the meat okay?

    While the outer carton may show signs of handling during delivery, the internal insulation is specifically built to protect the contents and preserve freshness.

    What should I do if I have concerns?

    If you detect any issues with the temperature or seal of your products upon arrival, please contact our team immediately so we can find a solution for you.