Ruby Roman Grapes

Sticking with the topic of wine oddities such as World's Oldest Wine, here is an interesting story that came through my news feed on the most expensive grapes in the world.
According to this article, the most expensive grapes are called Ruby Roman grapes. These Ruby Roman grapes are grown in hothouses in Ishikawa prefecture, Japan. My husband and I regularly tune in to our NHK app so we know a little about how the Japanese take extra care in growing their grapes.

Each grape is monitored and manicured so that every grape in a bunch looks identical. Each grapes must weigh at least 20 grams and must have at least an 18% sugar content. Ruby roman grapes have a uniquely sweet flavor, are mouthwateringly juicy and have a low acid content.

The annual harvest consists of a mere 24,000 bunches. There are three grades of Ruby Roman grapes (1) superior grade, (2) special superior grade, and the (3) ultra and rare premium class grapes. The superior grade accounts for 90% of the Ruby Roman grapes and costs between $90.00 to $140.00. The special superior grade Ruby Roman grapes account for approximately 10% of the total harvest and can sell for $450.00 a bunch. The loftiest category, the ultra and rare premium superior grade Ruby Roman grapes are exactly that, ultra and rare. In any given harvest there might be two bunches that meet this category. To achieve this status, each grape must be 30 grams and the bunch must weigh a minimum of 700 grams. This category of Ruby Roman grapes is certified and can cost $1000.00 a bunch!

In 2020, there were only 25000 Ruby Roman bunches available for purchase. It’s so expensive that in 2020, one bunch was sold at auction for 12,000 USD. This equates to around 400 USD per grape!
References:
1. Mashed, "These rare Japanese grapes could cost you thousands", Hannah Beach, January 15, 2023.
2. Ruby Roman Grapes.
3. Thuy Fang, Japan Ruby Roman Grapes: The Most Luxurious Grapes, October 26, 2022.