Gem Talk: Meet the Stones of This Week's Drop - SARDA™
Gem Talk: Meet the Stones of This Week's Drop - SARDA™

Gem Talk: Meet the Stones of This Week's Drop

Meet the debut gemstones of SARDA™'s May 25 drop: pietersite, tiger's eye, labradorite, mystic topaz, white quartz, and lab-created pink sapphire.

Monday, May 25 brings five collections to debut — each grounded in a distinct family of stones. From unheated Namibian pietersite to lab-grown pink sapphire in three shades, here’s your close look at every gem arriving in the I Am His Treasure, Linked in Faith, Ocean’s of Grace, My Strong Tower, and Redeemed by Grace collections.

Pietersite

Pietersite is one of the rarest gemstones to appear in fine jewelry. First identified in Namibia in 1962, it forms from the metamorphic transformation of tiger’s eye and hawk’s eye under intense geological pressure. The result is a stone with dramatic, swirling bands of deep blue, gold, and brown — a silky optical shimmer known as chatoyancy — that shifts visibly as the stone turns. No two pietersite stones share exactly the same pattern, making each piece genuinely one of a kind.

This week’s stones are sourced from Namibia, untreated, in large 16×12mm oval cabochons at 9.38 ctw. Mohs hardness: 6–7.5 — durable enough for bracelets and pendants worn with everyday care. Store away from harder stones and clean with a soft damp cloth; avoid ultrasonic cleaners. Pietersite is featured in the I Am His Treasure collection in a multi-stone toggle bracelet and a pendant.

Tiger’s Eye & Blue Tiger’s Eye

Tiger’s eye is a pseudomorph — quartz that gradually replaced fibrous blue asbestos while preserving its parallel fiber structure, producing the stone’s signature silky, banded shimmer that moves with the light. Worn as a protective amulet across ancient Egypt, Rome, and East Asia, it has centuries of history as a stone associated with clarity and grounded focus. Blue tiger’s eye (hawk’s eye) is the same mineral in an earlier stage of formation, before iron oxidation shifts the color to gold — cooler, moodier, with deeper blue-grey tones.

This week’s golden tiger’s eye is sourced from Australia (Mohs 6–7) and blue tiger’s eye from South Africa (Mohs 6–7), both stabilized and shaped into round cabochons. Both appear in the I Am His Treasure collection across a bracelet, pendant, and rings. One ring also pairs these two stones with rutilated quartz from Brazil — clear quartz threaded with golden rutile needles, 12mm round cabochon at 6.22 ctw.

Labradorite

Labradorite is a feldspar mineral celebrated for labradorescence — a floating, iridescent flash of blues, greens, and golds that appears to hover beneath the stone’s surface. The phenomenon comes from light refracting between thin internal layers within the mineral’s structure. Though first documented in samples from Canada’s Labrador Peninsula in the 1770s, fine quality labradorite is now found in Finland and Madagascar, which is the source for all pieces in this week’s debut.

The ring version is stabilized in a 10×8mm oval cabochon (2.72 ctw); the bracelet and necklace interchangeable components carry untreated 12mm cushion-square cabochons (6.63 ctw each). Mohs hardness: 6–6.5. Avoid harsh chemicals and ultrasonic cleaners; wipe clean with a soft damp cloth. Labradorite arrives in the Linked in Faith and Ocean’s of Grace collections in a ring, a bracelet component, and a necklace component.

Mercury Mist™ Mystic Topaz

Topaz is one of the hardest gemstones in common use at Mohs 8 — resistant to everyday scratches and known for a bright, glassy luster. Mercury Mist™ Mystic Topaz is natural Brazilian topaz that has been treated with a PVD (Physical Vapor Deposition) metallic coating — a vacuum-deposited surface layer that diffracts light into shifting flashes of silver, teal, and gold. The multi-dimensional optical effect changes with viewing angle and light source, and no standard lighting shows it the same way twice.

Each stone is a 6mm round faceted gem at 1 ctw, sourced from Brazil. Because the iridescent color lives in the coating rather than the stone itself, gentle care is essential: soft cloth only, no ultrasonic cleaners, no steam, no abrasive polish. Mercury Mist™ Mystic Topaz debuts in the Linked in Faith interchangeable necklace system in 16” and 20” lengths.

White Quartz

Quartz is among the most abundant minerals on Earth and one of the most reliably elegant at Mohs 7. White quartz ranges from translucent milky white to near-clear, valued for its clean, neutral aesthetic and the way it captures ambient light. What sets this week’s stones apart is the cut: each is shaped in a honeycomb carved oval cabochon — a geometric pattern applied to the surface that creates a faceted, architectural texture rather than a standard smooth dome. The carving gives the stone a quality closer to a designed object than a found one.

Sourced from Brazil, untreated. Bracelet versions carry a 10×8mm stone pair (2.3 ctw total); the ring and necklace component use a single 14×10mm stone (5.1 ctw). Clean with lukewarm water and a soft brush. White quartz debuts in the My Strong Tower collection in tip-to-tip bracelets (four size options), a ring, and a necklace component.

Lab Created Sapphire

Sapphire — corundum — is the second-hardest natural mineral at Mohs 9, exceeded only by diamond. Lab-created sapphires are chemically, physically, and optically identical to mined stones; they are grown from the same mineral composition in controlled conditions, not imitations or simulants. The Redeemed by Grace collection debuts three distinct shades of pink lab sapphire this week, all from China: Dark Rose in a 10mm square checkerboard cut (5.36 ctw); Rose Pink in both a 7mm square checkerboard (1.79 ctw) and an 11×9mm TV barrel checkerboard (4.72 ctw); and Light Pink in a 6mm trillion faceted cut (0.89 ctw).

The range of tones and cuts is designed to layer naturally across a single look. At Mohs 9, lab sapphire is the most durable stone in this week’s drop — clean with mild soap and a soft brush, store in a lined jewelry box to protect the silver setting. The collection arrives in a multi-stone bracelet, rings, and earrings.

Caring for This Week’s Stones

  • Pietersite, Tiger’s Eye, Blue Tiger’s Eye, Labradorite: Soft damp cloth only. No ultrasonic cleaners or harsh chemicals. Store separately from harder stones to prevent surface scratching.
  • Rutilated Quartz, White Quartz (Mohs 7): Lukewarm water and a soft brush; avoid abrasive cloths or strong cleaning solutions.
  • Mercury Mist™ Mystic Topaz: Gentle soft-cloth cleaning only — the PVD coating is the source of the stone’s color and must not be abraded, ultrasonically cleaned, or steamed.
  • Lab Created Sapphire (Mohs 9): Mild soap and a soft brush. The most durable stone in this drop; store in a lined box to protect the sterling silver setting.

For all sterling silver settings, store in an anti-tarnish pouch between wears. SARDA’s Jewelry Cleaning Kit is formulated for .925 silver and safe across all of the stone types in this week’s debut.

Browse the full May 25 debut — Shop New Arrivals →

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