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Fullblood Wagyu
Filet Mignon
Prepare for decadence. Filet mignon is the king of cuts, and Diamond Wagyu is the king of beef. Buttery, delicate marbling laces through tender and flavorful meat for an experience unlike any you’ve had before. With rich flavor, these Wagyu filets bring Michelin-star dining to your home for the ultimate celebration dish. Includes two steaks.
Ships frozen with an average weight of 15.7 oz.
FREQUENTLY BOUGHT TOGETHER



This cut: Filet Mignon (Diamond II)
Sirloin Tip Roast (Diamond II)
Ground Beef Patties

Wagyu
Grading Chart

20-30% marbling

30-40% marbling

Above 40% marbling
Product information
To meet our high safety standards, we only ship to the 48 contiguous states.
Orders placed by 3 p.m. (MDT) on Monday will be carefully packed and shipped on Tuesday and arrive at your doorstep within two days, ready to enjoy! This removes any worries of your order getting lost in the weekend shuffle.
Your order comes in a box packed with cool-gel ice packs and insulating materials to keep it frozen. We ship to you very quickly to ensure your meat arrives cool to the touch (under 40 degrees fahrenheit).
We can’t guarantee any changes or cancelations after your order has been processed. We move fast to get you fresh, frozen beef, so your order may already be on its way to you!
We don’t accept returns, because the Post Office would hunt us down if you shipped raw meat without the proper precautions.
But, we’d love nothing more than to talk through any issues you’ve had or if there was a problem with your order. Email support@slickhornranch.com so we can make it right!
Diamond Grading System
The Slickhorn Score for Wagyu beef grading is based on intramuscular fat, which determines marbling and tenderness.
- Diamond I includes Wagyu beef with intramuscular fat between 20-30 percent, which is higher than USDA Prime.
- Diamond II includes Wagyu beef with intramuscular fat between 30-40 percent, which is significantly higher than USDA Prime and deeply marbled.
- Diamond III is incredibly rare. It includes Wagyu beef with exquisite marbling and intramuscular fat content above 40 percent. It is our highest-grade beef—extremely decadent, buttery, and tender.
USDA Grading System
The USDA regulates and oversees beef grading. There are eight total grades, but only a few you need to worry about.
- USDA Select is less than 3 percent intramuscular fat.
- USDA Choice balances quality, flavor, and accessibility, with intramuscular fat between 3-6 percent.
- USDA Prime has intramuscular fat above 6 percent up to 10 percent. It is the highest USDA grade with the best marbling, tenderness, and flavor.
Cooking Instructions


Fullblood Wagyu
Part of a Delicious Diet
Our beef is packed with protein, iron, B-vitamins, and zinc. And, Wagyu specifically has higher levels of certain mono-unsaturated fatty acids, like oleic acid.
Wagyu can be part of balanced diet in moderation, but if you're concerned, talk to your doctor to find out what that means for you. Source: Korean Society for Food Science of Animal Resources
F.A.Q.
You've got questions, and we've got answers. Something you want to know not on our list? Contact us so we can help you out.
What does “fullblood” vs. “American” wagyu mean?
Fullblood Wagyu means the cattle have traceable and verified Japanese Wagyu lineage all the way down to their toes—that’s 100% delicious Japanese marbling. American Wagyu is a crossbreed of Japanese Wagyu and other types of cattle.
But really, it’s all about your preference! Some folks prefer eating small portions of rich, buttery fullblood Wagyu while some prefer the meatier American Wagyu. If you’re not sure what to pick, use our Diamond system as a guide.
Diamond I has a lower marbling-to-meat ratio, and Diamond III has the highest fat
content.
What does Diamond grading mean?
The Slickhorn Score for Wagyu beef grading is based on intramuscular fat, which determines marbling and tenderness.
Diamond I includes Wagyu beef with intramuscular fat between 20-30 percent, which is higher than USDA Prime.
Diamond II includes Wagyu beef with intramuscular fat between 30-40 percent, which is significantly higher than USDA Prime and deeply marbled.
Diamond III is incredibly rare. It includes Wagyu beef with exquisite marbling and intramuscular fat content above 40 percent. It is our highest-grade beef—extremely decadent, buttery, and tender.
What temperature should I cook my beef to?
Here are the basics:
Rare Internal Temperature: 120-125°F (49-52°C)
Medium Rare Internal Temperature: 130-135°F (54-57°C)
Medium Internal Temperature: 140-145°F (60-63°C)
Medium Well Internal Temperature: 150-155°F (66-68°C)
Well Done Internal Temperature: 160°F (71°C) and above
For more in-depth information, check out our Guide to Beef Cooking Temperatures and More.
How long does it take to thaw? How long does it last after it’s been thawed?
It’s simple stuff. The bigger the item, the longer it takes to thaw. Most items thaw within 24 hours, but big ol’ roasts and briskets can take longer. The USDA recommends that you keep thawed beef in the fridge between 3 to 5 days.
Give yourself enough time to fully that your meat in the fridge AND enough time to let it come to room temperature before cooking. This allows it to cook more evenly and generally improves results.
A little discoloration is normal, with parts of the meat that are slightly darker. However, if your beef seems “off” – aka slimy, sticky, stinky (think ammonia or sulfur), or a strange color – that’s a bad sign. Contact us so we can make it right!
Can I change or cancel my order?
We do our best to be flexible, but we can’t guarantee any changes or cancelations after your order has been processed. We move fast to get you fresh, frozen beef, so your order may already be on it’s way to you!
My order is not up to my satisfaction. What do I do?
Tell us about it! If you didn’t love your order, we want to know why so we can make it right. Contact us so we can get started.
How do you handle returns?
We don’t accept returns, because the Post Office would hunt us down if you shipped raw meat without the proper precautions.
But, we’d love nothing more than to talk through any issues you’ve had or if there was a problem with your order. Contact us
so we can make it right!