Tandon Gems
Umba Sapphire 17mm Faceted Rondelle gemstone bead strand

Natural stones vary. Your strand will match these photos in colour and size range, not bead for bead. Photographed under daylight-balanced light with no colour correction.

Sapphire

Umba Sapphire 17mm Faceted Rondelle

$280
per strand · Umba
In stock. Free US shipping over $100. To order, message us with the SKU and we send an invoice you can pay online.
Reserve for pickup at Denver, Sep 10 to 13, 2026

Specifications

SKUGS1781
StoneSapphire
ShapeRondelle
Bead size17mm
CutFaceted
ColorRed/Orange
WeightOn request
Hardness (Mohs)9
OriginCut in Jaipur, India
AvailabilityIn stock

Umba Sapphire is a popular gemstone among jewelers because of its amazing and unique color. Depending on the light source, Umba Sapphire displays a color change effect like orange, orange-red, orangy golden and yellow colors. Umba Sapphire is the cleanest material and makes a stunning stone for jewelry like rings, chains, bracelets, etc.

What it makes

Rondelles are used for strung necklaces, bracelets, spacers between larger beads. Measured diameter by height, e.g. 4x3mm; usually drilled through the center, along the short axis. More about rondelles.

Strand calculator. Pick a finished length; we allow 1.5 inches for the clasp and findings.
25 beads of 17mm for a 18-inch piece, about 3 strands at roughly 12 beads per 8-inch strand.
Estimate. Natural beads vary in size; buy one extra strand if the count is close.
The story of Sapphire

Hardness 9, cut small: the strand a granddaughter still wears.

Hold a strand of 3mm rondelles to a window. The color moves bead to bead: ink blue in one, slate gray in the next, one almost violet. Facets this small give back light in hard points rather than a broad shine. On the pink strands the color sits somewhere between raspberry and dusty rose. Makers reach for these because it is the same mineral that goes into a ring stone, only cut small and sold by the inch.

Sapphire is the September birthstone and the gem of the fifth anniversary. Wisdom and loyalty attach to it in tradition. Older writing links it to nobility and truth, puts sincerity and faithfulness on the same list, and holds that the stone stands for fidelity and for the soul. For centuries people believed a sapphire worn on the body guarded its owner against poison and fraud, which is part of why it sat in the rings of kings and bishops. Star sapphires drew legends of their own. None of it is fact. It is still why a blue bead gets picked for an engagement piece, or for a gift marking a long marriage.

Beliefs about stones are tradition, not advice. Watch the film and read the full story.

About Sapphire

Corundum, aluminum oxide (Al2O3); every color but red is sapphire. Mohs 9. Bead grades: Sri Lanka, Madagascar, Tanzania (Umba, Songea), India, cut in Jaipur.

Daily wear, ultrasonic fine. Store apart from softer stones.

Full stone guide

More sapphire

Same shape, other stones