Fukuoka-based sweets brand Harapecolab, known for its 「ArtなFoodであそぶ」 concept, is bringing back its Birthstone Tart (September Sapphire) ice cake in a limited quantity from 12:00 PM (noon) on Friday, September 11, 2026, through its official online store.
Back by Popular Demand: An "Edible Birthstone" for September Only
The Birthstone Tart (September Sapphire), first released in a limited quantity in August, is returning due to strong demand. The tart brings together September's two birthstones — the deep, clear blue of sapphire and the soft, pale tone of kunzite — expressed through Harapecolab's signature kanten confection, こうぶつヲカシ, and arranged on top of a chilled cassata cream ice tart. Each piece of こうぶつヲカシ is hand-cut, giving it the look of a miniature mineral specimen. While the standard こうぶつヲカシ has a crisp texture from being dried, the version used on the tart is freshly cut, with a soft, springy bite and a moist, translucent look. Layering deep sapphire blue with delicate kunzite tones, it's an "edible birthstone" available only in September, offered again in a limited quantity — suited as a birthday gift for those born in September, a treat for oneself, or a gift for someone special.
The Meaning Behind September's Birthstone, Sapphire
Sapphire's traditional meanings include sincerity, compassion, and wisdom. Its clear blue glow is said to carry the power to calm the mind and see the truth, and it has long been cherished as a gift for loved ones. Fitting for a birthday celebration or a gift of everyday gratitude, each tart comes with a card featuring its photo alongside these meanings.
A Rich Yet Light Ice Cream Tart
The tart base uses a smooth cream made from fresh cream and ricotta cheese, the same combination used in Harapecolab's popular 「宝石のカッサータ」. Fragrant, toasty nuts and a hint of fresh lemon peel are folded into the cream for extra texture and brightness, giving it a rich yet light, smooth finish. The deep blue sapphire-colored こうぶつヲカシ carries a refreshing mint flavor, made with a homemade mint syrup steeped from mint leaves. The pink pieces are peach-coconut flavored, and the light blue pieces are cider-flavored, so the taste changes by color. It's best enjoyed after taking it out of the freezer and letting it sit at room temperature for a little while, once the cream starts to soften. The springy bite of the glossy こうぶつヲカシ on top pairs well with the creamy ice tart underneath.
How to enjoy it: Take it out of its container while still frozen and cut it to your preferred size. The texture changes over time, so it can be enjoyed frozen, half-thawed, or fully thawed, depending on preference.
Product Details
| Item | Details |
|---|---|
| Product Name | Birthstone Tart (September Sapphire) |
| Price | ¥6,480 (tax included) |
| Weight | 370g |
| Size | No. 4 — tart diameter 122mm (115mm at the base) x height 18mm |
| Cake Tray | Dome-shaped lidded container, 155mm diameter x 76mm height |
| Best Before | At least 1 month remaining upon delivery |
| Storage | Keep frozen at -18°C or below |
Note: The top is finished with a piece of こうぶつヲカシ about 3cm tall.
Restock Details
- Restock date and time: 12:00 PM (noon), Friday, September 11, 2026
- Quantity: Limited
- Where to buy: Harapecolab official online store
Also Available: September こうぶつヲカシ (Birthstone Sapphire)
Each month, Harapecolab makes a one-month-only batch of its birthstone こうぶつヲカシ, a kanten confection. For September, the theme is the birthstone sapphire, expressed through a range of hand-cut shapes and colors resembling rough stones with matrix rock attached, as well as cut gems. It's paired with September's other birthstone, kunzite, shown in a delicate rose-like shade between pale pink and purple. Combining deep sapphire blue with soft kunzite tones, it's a "jewelry box you can eat," available only in September — and pairs well with the Birthstone Tart (September Sapphire) as a birthday or anniversary gift, or a treat for oneself.
- Product Name: September こうぶつヲカシ (Birthstone Sapphire)
- Price: ¥3,310 (tax included)
