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FAQs

Faint fluorescence has no detectable effect in normal conditions. The old mine cushion's larger facets cannot reveal faint-level UV reaction. Faint fluorescence is functionally identical to no fluorescence. In warmer grades that suit the vintage aesthetic, it may provide barely perceptible whitening.
Faint blue fluorescence may provide subtle whitening for old mine cushions in warmer colors (H through J). For vintage enthusiasts who appreciate period-authentic warmth, faint fluorescence is a non-issue. For those wanting the whitest possible vintage stone, it provides a barely perceptible benefit.
No. Faint fluorescence has negligible impact. Focus on the old mine cushion's antique proportions, chunky sparkle character, and the vintage aesthetic you want. Faint fluorescence is never negative for this style.
A old mine cushion the higher crown creates depth and a warm, chunky sparkle pattern. With faint fluorescence, very slight blue glow under strong UV light, not visible in normal conditions. The old mine cushion cut's soft, romantic cushion shape inspired by 18th and 19th century diamond cutting creates a distinctive profile on the hand.