| Materials | Handcrafted Glass Gold |
| Diameter | 1.8 in / 4.5 cm |
| Height | 6.5 in / 16.5 cm |
| Capacity | 12.2 fl oz / 360 ml Sake Cup |
| Care Instructions | Do Not put in oven or under direct fire/heat May crack when subject to extreme temperature differential Hand clean with soft cloth and mild chemicals only Item is fragile, avoid dropping |
$688
The Toyo-Sasaki Kurotama Gold Foil Crystal Sake Set brings together clear crystal glass, deep ink-like accents, and real gold foil detailing.
The Toyo-Sasaki Kurotama Gold Cold Sake Set brings together clear Japanese glass, deep ink-like accents, and real gold foil detailing in a refined sake set made for quiet enjoyment and elegant gifting. Made in Japan by Toyo-Sasaki, the set includes one sake carafe and two matching sake cups, offering a complete presentation for chilled sake, fruit sake, plum wine, or other cold drinks.
The design is centered around a dark “kurotama” sphere-like motif, suspended within the transparent glass like ink resting in water. Fine vertical lines run through the carafe and cups, giving the set a calm sense of rhythm, while scattered real gold foil adds a soft metallic shimmer. As light passes through the glass, the gold catches gently against the black accents, creating a look that feels understated, luxurious, and quietly ceremonial.
Each piece is made using semi-red crystal glass with a smooth, transparent finish that allows the colour of sake to remain visible. The carafe features a recessed inner chamber that can hold ice, helping keep sake chilled without diluting its flavour. This makes the set especially practical for cold sake service, allowing the drink to stay refreshing while preserving its original aroma and taste.
The sake cups are shaped with a wide, flared mouth and a stable thickened base, giving them a comfortable hold and a balanced feel on the table. The clear glass body, black linear pattern, and real gold foil details create a refined contrast that works beautifully for both modern and traditional table settings.
Presented in a wooden box, the Kurotama Gold Cold Sake Set is suitable for gifting, entertaining, or personal use. Its combination of Japanese craftsmanship, practical chilled-sake design, and real gold foil decoration makes it a thoughtful choice for sake lovers and collectors of Japanese glassware.
• Brand: Toyo-Sasaki
• Origin: Made in Japan
• Product:2x Sake Cup 1x Sake Flagon
Handcrafted in Japan, with traditional methods, each with a unique design and texture.
Materials: Handcrafted Glass Gold
Diameter: 1.8 in / 4.5 cm
Height: 6.5 in / 16.5 cm
Capacity: 12.2 fl oz / 360 ml Sake Cup
Care Instructions: Do Not put in oven or under direct fire/heat May crack when subject to extreme temperature differential Hand clean with soft cloth and mild chemicals only Item is fragile, avoid dropping
Each pattern is drawn by hand, mapping how light will travel through every facet.
Diamond wheels carve the primary facets. One wrong angle and the piece is lost.
Each facet is refined by hand. Depth, edge, angle - adjusted until geometry becomes art.
Progressive abrasives bring out optical clarity. Light passes through without distortion.
Our crystal isn't just "glass." It's optical-grade borosilicate - the same material used in telescope lenses and camera prisms, chosen for its extraordinary clarity and precision.
When we set out to make the perfect whiskey glass, we didn't start with tradition. We started with a question: What if the same crystal that helps us see the stars could hold the amber glow of your favorite whiskey?
The result is a glass with >92% light transmission - higher than traditional lead crystal - and a hardness that allows for incredibly precise hand-cut facets. It's lighter than lead crystal, yet more durable and chemically stable.
This isn't a cheaper alternative to crystal. It's a better one.
| Attribute | Optical Crystal (ours) | Lead Crystal | Ordinary Glass |
|---|---|---|---|
| Light Transmission | >92% | >90% | ~85% |
| Refractive Index | High | High | Low |
| Lead Content | Lead-free | 24%+ | 0% |
| Weight | Lighter | Heavier | Light |
| Cut Precision | Excellent | Good | Poor |
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