Specifications
| Style | Sapphire Bamboo |
| Materials | Hand-cut crystal glass |
| Capacity | 7.8 fl oz / 230 ml |
| weight | 11.3 oz / 320 g |
| Rim Diameter | 3.15 in / 80 mm |
| Base Diameter | 2.76 in / 70 mm |
| Height | 3.54 in / 90 mm |
| Recommended Use | Whiskey, bourbon, cocktails, gifting, home bar display |
| Care | Hand wash recommended. Do not pour boiling water. Avoid dishwasher use and sudden temperature changes. |
Sapphire Bamboo Whiskey Glass – Hand-Cut Crystal Tumbler
$119
The Sapphire Bamboo Whiskey Glass is a striking crystal tumbler defined by deep blue color, sharp hand-cut detailing, and an elegant bamboo-inspired pattern.
Description
The Sapphire Bamboo Edo Kiriko Whiskey Glass is a striking crystal tumbler defined by deep blue color, sharp hand-cut detailing, and an elegant bamboo-inspired pattern.
Its surface features sweeping branch-like cuts that resemble bamboo leaves, layered over fine geometric starburst textures. The vivid sapphire blue crystal gives the glass a bold jewel-like presence, while the clear cut edges create brilliant contrast and depth under light.
With a 7.8 fl oz capacity and a solid 11.3 oz weight, this tumbler is well suited for whiskey, bourbon, neat pours, cocktails, or refined home bar display. Its combination of deep color, precise cutwork, and nature-inspired geometry makes it a distinctive choice for gifting or collecting.
Each glass is individually hand-cut, so slight variations may appear between pieces. These subtle differences are part of the character of handcrafted crystal glass and make every piece unique.
The Craft, in Four Steps
Design Drafting
Each pattern is drawn by hand, mapping how light will travel through every facet.
Initial Cutting
Diamond wheels carve the primary facets. One wrong angle and the piece is lost.
Fine Adjustment
Each facet is refined by hand. Depth, edge, angle - adjusted until geometry becomes art.
Final Polishing
Progressive abrasives bring out optical clarity. Light passes through without distortion.
Why Optical-Grade Crystal?
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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