$160.00
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$229.00
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$450.00
$488.00 
$145.00/Kg
In stock
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Cold-Chain Sealed & Packed
Recyclable & Eco Friendly Box Packaging
Next-day Dispatch
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.
The Diamantina PURE Wagyu Sirloin Whole is a 4kg showpiece cut that combines refined tenderness with bold beef character. With an outstanding marble score of 8–9+, this sirloin is rich, buttery, and beautifully marbled delivering a melt-in-your-mouth dining experience reserved for the finest Wagyu.
Cut from Stanbroke’s award-winning PURE Wagyu program, each piece is hand-selected, expertly butcher-prepared, and vacuum-sealed to ensure freshness. Versatile and indulgent, this cut is perfect for portioning into gourmet steaks, roasting whole as an impressive centerpiece, or preparing with precision techniques like sous vide.
F1 Wagyu: Refers to a first-cross Wagyu, typically a 50/50 blend between Wagyu and another breed. While still beautifully marbled and tender, F1 Wagyu offers a balance of Wagyu richness with the stronger beefiness of its crossbred parentage.
Pure Wagyu: Comes from fullblood or purebred Wagyu genetics, carrying a much higher potential for marbling, texture, and flavour complexity. Pure Wagyu achieves the ultra-high marble scores of SB 8–9+ and needs to have at least 97.75% Wagyu genetics. This delivers the signature melt-in-your-mouth experience, luxurious richness, and silk-like tenderness Wagyu is world-renowned for.
Marble Score 8–9+ for exceptional richness and tenderness
4kg whole cut – perfect for slicing, roasting, or sous vide
Premium Australian Wagyu from Stanbroke’s PURE program
Butcher-prepared, vacuum sealed, and chilled
A chef’s favourite for both BBQ and fine dining
Steak Night: Slice into 250–300g steaks, sear over high heat, and rest before serving with truffle butter or chimichurri.
Whole Roast: Season with rosemary, garlic, and sea salt, then roast at 160°C until 52–54°C internal for medium-rare.
Sous Vide & Sear: Cook at 54°C for 2 hours, then finish in a hot pan for a perfectly tender steakhouse finish.
Entertaining and dinner parties
Gifting to Wagyu enthusiasts and food lovers
Premium mid-week meals or meal prep
Freezing in custom steak portions for convenience
100% Australian PURE Wagyu beef
Marble score 8–9+
Approx. 4kg whole sirloin cut
Grain-fed with no added hormones
Vacuum sealed, chilled, and chef-ready
Delivered chilled in insulated, recyclable packaging. Keep refrigerated at 0–4°C or freeze portions for extended storage.
Every product is expertly selected, prepared, and packed by our butchers to ensure premium quality and freshness.
We currently deliver to selected regions across Australia using refrigerated couriers and registered delivery vehicles. All orders are packed in insulated, biodegradable thermal boxes with ice packs to maintain cold chain integrity from our butcher shop to your door.
Deliveries are made to the address provided at checkout.
If no one is home, orders may be left safely at the doorstep unless otherwise requested.
Once delivered, responsibility for the care of products transfers to the customer.
Please refrigerate or freeze items as soon as possible upon delivery.
Our current delivery service areas are as follows, make sure to enter in your address at checkout to check delivery eligibility:
At checkout, simply enter your address to confirm if your area is eligible for delivery.
We’re working closely with chilled courier partners so we can bring Peter Augustus products to more Australians. If your postcode isn’t recognised at checkout, you can try an alternative postcode nearby or get in touch with our team, we’ll happily check delivery options for you.
Our delivery network is always growing. Postcodes are updated regularly, so it’s a good idea to re-check availability even if you’ve looked before.
We aim to dispatch orders within 1 business day
Delivery days and cut-off time is 1pm
You’ll receive a tracking link or notification from the courier once your order is on its way
Brisbane Metro, Gold Coast, Sunshine Coast -Monday to Friday delivery, allow 2-3 business days
Regional QLD - Monday, Wednesday, Thursday, allow 2-3 business days
Remote QLD - Monday, Tuesday, Thursday, Friday depending on location, 3-4 business days from order.
Current known non-serviced postcodes in QLD:
4183, 4184, 4720, 4824, 4871, 4875
Sydney Metro - Delivery Monday to Friday, allow 2-3 business days
Regional NSW - Most zones delivered Monday to Friday depending on suburb.
Remote NSW - Allow 3-4 business days from order.
Current known non-serviced postcodes in NSW:
2898
Canberra Metro & surrounds - Delivery typically Tuesday and Friday. Allow 3-4 business days from order.
Melbourne Metro - DeliveryMonday to Friday on set weekday per suburb. Allow 2-3 business days
Regional VIC - Delivery Tuesday or Wednesday, allow 3-4 business days.
Remote VIC - Delivery Wednesday's, allow 4-5 business days from order.
Adelaide Metro Only - Delivery generally on Tuesday's, allow 5-7 business days from order.
***Adelaide cut off time for shipping are Wednesdays 4pm at the latest for the next Tuesday deliveries.
We are continuously expanding our delivery zones. If we don’t currently deliver to your area, feel free to reach out and we’ll do our best to assist or recommend alternatives.
Due to the perishable nature of our products, returns or refunds will only be processed if an issue is reported within 24 hours of delivery.
If you believe there has been an issue with your order such as a supply error or a product that doesn't meet our usual high standards, please contact our team within 24 hours of receiving your order.
We will assess the situation and, where appropriate, offer a refund, replacement, or store credit.
We’re unable to provide returns or refunds for change of mind or if a product doesn’t align with personal taste preferences. However, our team is always here to help, we’d be glad to suggest alternatives or recommend cuts and products that may better suit your preferences for future orders.
If a return is approved, the following conditions apply:
The product must be in its original packaging
It must be stored at or below 4°C until returned
A valid proof of purchase (receipt or order confirmation) must be provided
If you have any questions about this policy or your recent order, please don’t hesitate to get in touch.
Mobile: 0486 364 355
Please include your order number, a description of the issue, and photos (if applicable).
