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Birthstone finder
Find your birthstone
Tap your birth month for its modern and traditional stones, their meaning, and a way to make one yours.
The gem library
Find a stone at a glance
Filter by color, durability, birth month, or family. Open the reading room below only when you want the complete reference.
Color
Durability
Birth month
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Signora offers
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The reading room
The complete stone library
Prefer to read? Every stone from the finder, in full — linkable and searchable.
Lab-grown diamond
Carbon · Mohs 10
Eternal love, strength, and purity.
- Color
- Colorless; fancy yellow, pink, blue
- Birth month
- April
- Durability
- Everyday (Mohs 10)
- Origins
- Grown by CVD or HPHT; cut and finished in Surat for Signora designs
- Typical treatment
- Lab-grown; some fancy colors treated
- Price tier
- $$ · mid-range
- Care
- Soap and water; ultrasonic is generally safe.
Signora offers this stoneShop loose lab-grown diamonds →
Moissanite
Silicon carbide · Mohs 9.25
Brilliance and modern romance.
- Color
- Colorless to near-colorless
- Durability
- Everyday (Mohs 9.25)
- Origins
- Lab-created (first found in a meteorite)
- Typical treatment
- Lab-grown
- Price tier
- $ · accessible
- Care
- Soap and water; ultrasonic safe. It attracts oils, so wipe it often.
Signora offers this stoneBrowse the collection →
Ruby
Corundum · Mohs 9
Passion, courage, vitality, and protection.
- Color
- Red
- Birth month
- July
- Durability
- Everyday (Mohs 9)
- Origins
- Myanmar (Burma), Mozambique, Thailand, Sri Lanka
- Typical treatment
- Heat (standard)
- Price tier
- $$$ · premium
- Care
- Soap and water; ultrasonic usually fine, unless fracture-filled.
Signora offers this stoneShop red gemstone jewelry →
Sapphire
Corundum · Mohs 9
Wisdom, royalty, fidelity, and truth.
- Color
- Every color but red; blue most prized; padparadscha pink-orange
- Birth month
- September
- Durability
- Everyday (Mohs 9)
- Origins
- Sri Lanka (Ceylon), Kashmir, Madagascar, Montana
- Typical treatment
- Heat (standard)
- Price tier
- $$$ · premium
- Care
- Soap and water; ultrasonic usually fine.
Signora offers this stoneShop colored gemstone jewelry →
Emerald
Beryl · Mohs 7.5–8
Rebirth, love, prosperity, and wisdom.
- Color
- Green to bluish-green
- Birth month
- May
- Durability
- Careful wear (Mohs 7.5–8)
- Origins
- Colombia (Muzo, Chivor), Zambia, Brazil
- Typical treatment
- Oil/resin fracture-filling (standard); natural jardin inclusions
- Price tier
- $$$ · premium
- Care
- No ultrasonic or steam — wipe gently with a soft, damp cloth.
Signora offers this stoneShop green gemstone jewelry →
Alexandrite
Chrysoberyl · Mohs 8.5
Balance, transformation, and rarity.
- Color
- Green in daylight, red-purple under lamplight
- Birth month
- June
- Durability
- Everyday (Mohs 8.5)
- Origins
- Russia (Ural — original), Brazil, Sri Lanka, East Africa
- Typical treatment
- Usually none; lab versions common
- Price tier
- $$ · mid-range
- Care
- Soap and water; ultrasonic usually fine.
Signora offers this stoneShop colored gemstone jewelry →
Aquamarine
Beryl · Mohs 7.5–8
Serenity, the sea, and safe travel.
- Color
- Pale to vivid blue, blue-green
- Birth month
- March
- Durability
- Careful wear (Mohs 7.5–8)
- Origins
- Brazil, Nigeria, Madagascar, Pakistan
- Typical treatment
- Heat (removes green/yellow)
- Price tier
- $$ · mid-range
- Care
- Soap and water; ultrasonic usually fine.
Signora offers this stoneShop colored gemstone jewelry →
Morganite
Beryl · Mohs 7.5–8
Compassion and tenderness.
- Color
- Peach to pink
- Durability
- Careful wear (Mohs 7.5–8)
- Origins
- Brazil, Madagascar, Mozambique
- Typical treatment
- Sometimes heat
- Price tier
- $$ · mid-range
- Care
- Soap and water.
Garnet
Garnet group · Mohs 6.5–7.5
Protection, vitality, and friendship.
- Color
- Mostly red; also green, orange, purple
- Birth month
- January
- Durability
- Careful wear (Mohs 6.5–7.5)
- Origins
- India, Sri Lanka, Africa, USA
- Typical treatment
- Usually none
- Price tier
- $ · accessible
- Care
- Soap and water; ultrasonic with care.
Signora offers this stoneShop red gemstone jewelry →
Amethyst
Quartz · Mohs 7
Calm, clarity, and spirituality.
- Color
- Lilac to deep violet
- Birth month
- February
- Durability
- Careful wear (Mohs 7)
- Origins
- Brazil, Uruguay, Zambia
- Typical treatment
- Usually none (heat can lighten)
- Price tier
- $ · accessible
- Care
- Soap and water; can fade in strong sunlight.
Citrine
Quartz · Mohs 7
Warmth, abundance, and optimism.
- Color
- Yellow to orange-brown
- Birth month
- November
- Durability
- Careful wear (Mohs 7)
- Origins
- Brazil, Bolivia
- Typical treatment
- Mostly heat-treated amethyst
- Price tier
- $ · accessible
- Care
- Soap and water.
Topaz / blue topaz
Topaz · Mohs 8
Strength, clarity, and communication.
- Color
- Colorless, blue, imperial orange-pink
- Birth month
- November
- Durability
- Careful wear (Mohs 8)
- Origins
- Brazil, Sri Lanka, Nigeria
- Typical treatment
- Blue topaz: irradiated and heated
- Price tier
- $ · accessible
- Care
- Soap and water; avoid harsh chemicals.
Peridot
Olivine · Mohs 6.5–7
Light, warmth, and protection at night.
- Color
- Yellow-green
- Birth month
- August
- Durability
- Careful wear (Mohs 6.5–7)
- Origins
- Pakistan, Myanmar, Arizona; historic Egypt
- Typical treatment
- Usually none
- Price tier
- $ · accessible
- Care
- Soap and water; avoid acids and ultrasonic.
Spinel
Spinel · Mohs 8
Energy and revitalization.
- Color
- Red, pink, blue, lavender, black
- Birth month
- August
- Durability
- Everyday (Mohs 8)
- Origins
- Myanmar, Sri Lanka, Tanzania
- Typical treatment
- Usually none
- Price tier
- $$ · mid-range
- Care
- Soap and water; ultrasonic usually fine.
Tanzanite
Zoisite · Mohs 6.5–7
Transformation, intuition, and rarity.
- Color
- Blue-violet
- Birth month
- December
- Durability
- Occasional (Mohs 6.5–7)
- Origins
- Tanzania only (Merelani Hills)
- Typical treatment
- Heat (standard)
- Price tier
- $$$ · premium
- Care
- No ultrasonic — wipe gently; best in earrings and pendants.
Tourmaline
Tourmaline · Mohs 7–7.5
Protection, grounding, and creativity.
- Color
- Every color; Paraíba neon, watermelon bi-color
- Birth month
- October
- Durability
- Careful wear (Mohs 7–7.5)
- Origins
- Brazil (Paraíba), Africa, Afghanistan, USA
- Typical treatment
- Sometimes heat or irradiation
- Price tier
- $$ · mid-range
- Care
- Soap and water.
Opal
Hydrated silica · Mohs 5–6.5
Creativity, hope, and imagination.
- Color
- Play-of-color: white, black, fire orange
- Birth month
- October
- Durability
- Occasional (Mohs 5–6.5)
- Origins
- Australia, Ethiopia, Mexico
- Typical treatment
- Usually none
- Price tier
- $$ · mid-range
- Care
- No ultrasonic or soaking — wipe gently; dislikes dry air.
Pearl
Organic (nacre) · Mohs 2.5–4.5
Purity, wisdom, and femininity.
- Color
- White, cream, pink, gold, black (Tahitian)
- Birth month
- June
- Durability
- Occasional (Mohs 2.5–4.5)
- Origins
- Cultured: Japan (Akoya), South Sea, Tahiti, China
- Typical treatment
- Bleaching/dye common
- Price tier
- $$ · mid-range
- Care
- No ultrasonic or chemicals — wipe after wear; restring periodically.
Moonstone
Feldspar · Mohs 6–6.5
Intuition, new beginnings, and lunar energy.
- Color
- White with blue/rainbow adularescence
- Birth month
- June
- Durability
- Occasional (Mohs 6–6.5)
- Origins
- Sri Lanka, India
- Typical treatment
- Usually none
- Price tier
- $ · accessible
- Care
- Soap and water gently; no ultrasonic.
Turquoise
Phosphate · Mohs 5–6
Protection, healing, and good fortune.
- Color
- Sky blue to green, often with matrix veining
- Birth month
- December
- Durability
- Occasional (Mohs 5–6)
- Origins
- Iran (Persian), USA (Arizona, Nevada), China
- Typical treatment
- Often stabilized/dyed
- Price tier
- $ · accessible
- Care
- No ultrasonic — wipe gently; it is porous.
Zircon
Zircon · Mohs 6–7.5
Wisdom, prosperity, and restful sleep.
- Color
- Blue (treated), colorless, golden, brown
- Birth month
- December
- Durability
- Careful wear (Mohs 6–7.5)
- Origins
- Cambodia, Sri Lanka, Tanzania
- Typical treatment
- Heat (blue/colorless)
- Price tier
- $ · accessible
- Care
- Soap and water; avoid abrasion — facets can chip.
Lapis lazuli
Rock (lazurite) · Mohs 5–5.5
Wisdom, truth, and royalty.
- Color
- Deep blue with gold pyrite flecks
- Birth month
- December
- Durability
- Occasional (Mohs 5–5.5)
- Origins
- Afghanistan
- Typical treatment
- Usually none (sometimes dyed)
- Price tier
- $ · accessible
- Care
- Wipe only; porous — no ultrasonic.
Featured stones
The six we know best
Durability
The Mohs hardness scale
Hardness is scratch-resistance, not toughness. Harder stones suit everyday rings; softer ones are happiest in earrings and pendants.
Compare stones
Side by side
Pick up to three stones to weigh hardness, fire, price, and meaning. We've started with the question we hear most.
Tap a stone above to add or remove it (up to three).
Lab-grown vs natural
Same stone, different origin
A lab-grown diamond is a diamond — the same carbon crystal and hardness — created in a controlled facility rather than formed underground. Price and total environmental impact vary by stone, facility, and market.
Same material
A lab-grown diamond has the same fundamental chemical, physical and optical properties as a mined diamond; its production origin differs. Beauty still depends on the exact stone's grade and proportions.
How they grow
CVD (carbon vapor) and HPHT (high pressure, high temperature). Lab ruby, sapphire, emerald, and alexandrite share their natural counterparts' exact properties too.
Moissanite stands apart
Not a "fake diamond," but its own distinct, brilliant gem — with even more fire than diamond.
Our position
Stone type is disclosed on each product page. Each approved individual lab-grown center or primary diamond of 0.50 ct or more includes an IGI grading report. For other independent documentation, the product page or approved specification states the laboratory, report type and scope.
Understanding quality
The 4Cs, in plain English
For colored stones, color — its hue, tone, and saturation — outranks the other three. A vivid, even color is what makes a colored gem sing.
Treatments & certification
Honest about what's in your stone
Many colored gems are enhanced through accepted treatments. The product page or approved specification records the treatment information confirmed for the exact stone.
Ruby & sapphire
Routinely heated to deepen and stabilize color. Standard, permanent, and disclosed.
Emerald
Oiled or resin-filled to soften the look of natural surface fractures.
Blue topaz
Irradiated and heated to create its signature blue from colorless topaz.
Citrine
Most citrine on the market is heat-treated amethyst — a natural quartz.
Tanzanite
Almost always heated to bring out its blue-violet from a brownish rough.
Documented, and yours to keep
Every finished piece includes a Signora Jewelry Certificate. Each approved individual lab-grown center or primary diamond of 0.50 ct or more also includes an IGI grading report. Other independent stone documentation and its scope are stated on the product page or approved specification.
STONEExact stone details
REPORTIncluded when stated
Find your stone
A few taps to your stone
Part folklore, part practicality — answer three questions and we'll suggest a stone that fits.
Question 1 of 3
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Gem glossary
The language of stones
Where to next
Carry it forward
Shop by color
Browse our colored-gemstone pieces by the shade you love.
Explore →Find your birthstone
Jump back to the finder and make your month yours.
Find it →Design something custom
Bring any stone to life in a one-of-a-kind piece from our Surat atelier.
Start designing →Care for your gems
A complete guide to keeping every stone brilliant for life.
Read the guide →
Questions, answered
Gemstone FAQ
Yes — a lab-grown diamond has the same chemical, physical, and optical properties as a mined one and the same Mohs hardness. Its production origin differs: it is grown in a controlled facility rather than formed underground.
Moissanite has a higher refractive index and greater dispersion than diamond, so it returns more "fire" — those flashes of rainbow color, especially in sunlight. It is its own distinct gem, not a diamond imitation.
Natural alexandrite is one of the rarest gems on Earth, which is why we offer lab-grown alexandrite with the same color-change magic. At 8.5 on the Mohs scale it is very durable and well suited to rings and everyday wear.
Emerald is hard (7.5–8) but often included and oil-treated, so it is best treated gently — never clean it in an ultrasonic or with steam. Many people happily wear emerald rings; earrings and pendants take even fewer knocks.
Many are heat treated, while untreated stones also exist. The exact product page or approved specification states the treatment information confirmed for the selected stone.
Every finished piece includes a Signora Jewelry Certificate. Each approved individual lab-grown center or primary diamond of 0.50 ct or more also includes an IGI grading report. Other independent documentation and its scope are stated on the product page or approved specification.
Diamond, at a perfect 10, followed by sapphire and ruby at 9. Softer stones like opal, pearl, and tanzanite are happiest in earrings and pendants that take fewer knocks. See our care guide for more.
We craft in Surat, India and ship internationally. Express, insured and tracked delivery is free on orders of US$500 or more; below US$500, the fixed rate is shown at checkout.