Iittala Kastehelmi Universal Glass / Tumbler (Amethyst colorway)

Iittala · Kitchenware > Glassware

Iittala Kastehelmi Universal Glass / Tumbler (Amethyst colorway)

Era / Decade

2010s-2020s (Modern reissue of 1964 design)

Material

High-quality pressed lead-free glass with a unique color-changing property (neodymium glass).

Condition

Excellent. Appears free of chips, cracks, or heavy clouding. The 'dewdrop' pattern is crisp and well-defined.

Demand Level

Strong. Iittala collectors specifically hunt for the Amethyst colorway to complete sets.

Resale Value

Estimated Resale Value

$25.00 - $55.00

Estimated Retail Value

$35.00 - $45.00

Comparable Sales

Single Amethyst tumblers regularly sell for $30-$45 plus shipping. Rare boxed sets can exceed $100.

Description

A stunning Iittala Kastehelmi (Dewdrop) universal drinking glass in the highly sought-after Amethyst color. This piece features the iconic concentric circles of raised glass bubbles designed by Oiva Toikka in 1964. The amethyst glass is particularly prized as it can shift in hue under different lighting conditions (fluorescent vs. incandescent). Includes a beaded rim and a textured exterior.

Key Features

Amethyst is a discontinued/limited-edition colorway; highly collectible Finnish design; 'color-changing' glass properties; iconic Mid-Century Modern aesthetic.

Authenticity Indicators

Distinctive Kastehelmi pattern with precise bubble spacing; weighted feel; Iittala glass often has a small red 'i' sticker, though these are frequently removed. High confidence due to specific color and pattern execution.

Flaws to Note

Look for tiny 'flea bites' on the raised glass dewdrops or scratches on the interior bottom from stacking. No major flaws visible in photo.

Selling Guide

Where to Sell

eBay, Etsy, or high-end kitchenware Facebook groups. eBay is best for reaching international Iittala collectors.

Selling Tips

Photograph under two different light sources to show the color shift (purple/lilac to blue-grey). Use keywords like 'Oiva Toikka', 'Finnish Design', and 'Neodymium'. Wrap extensively in bubble wrap for shipping.

Appraised on 5/3/2026