Preliminary identification

Kosta Boda 'Rainbow' Series Glass Vase by Bertil Vallien

Photo reference

1 uploaded photo

Overview

A striking example of Swedish Postmodernism, this hand-blown glass vase features a frosted 'snow' texture accented by a vertical trail of vibrant, multi-colored glass threads. Designed by the legendary Bertil Vallien, it represents the 1980s shift toward playful, graphic art glass.

Story

In the 1980s, Swedish glass moved from austere minimalism to joyful color. Bertil Vallien used a 'trail' technique to drop liquid glass onto the spinning vase, creating a permanent rainbow frozen in a snowy landscape.

Maker / Origin

Bertil Vallien is Sweden's most famous glass artist, best known for his haunting sand-casted glass boats. Since joining Kosta Boda in 1963, he has revolutionized the medium, winning the Visionary Award from the Glass Art Society.

Condition & Value

The glass appears clear with no visible chips or 'flea bites' on the rim. The colored trailing is intact; any scratches to the frosted surface would significantly lower the value. Excellent condition. Prices for the Rainbow series vary by size and shape.

Full Research

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Sold comps, value drivers, and venue guidance pulled from recent auction results.

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Market Analysis

Comparable demand stays strongest where maker, originality, and venue confidence line up. Broader examples still trade, but the range tightens quickly when provenance, condition, or selling lane fit is missing.

Value Drivers

  • Strong maker attribution with credible period details
  • Better-than-average condition for the category
  • Broader demand rises when presentation and finish feel intact

Concerns

  • Decorative-only demand limits the ceiling
  • Surface wear or missing provenance can compress the range fast
  • Regional sale lanes often underperform specialist venues

Best Venue

Specialty auction or a focused dealer with buyers already in this lane.

Comparable Sales

5 comps
Regional auction· Jun 2024
$1,280

Signed example with light edge wear and original frame.

Dealer archive· Mar 2024
$1,450

Comparable format with stronger provenance and cleaner surface.

Marketplace sale· Jan 2024
$980

Smaller related piece with visible craquelure and trimmed margins.

Estate platform· Oct 2023
$1,150

Period match with softer condition and weaker subject matter.

Auction result· Aug 2023
$1,375

Close market lane comp with similar material and presentation.