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Begin with one of our most-loved collections and find a piece made for you.
Shop best sellers- Made to order in Surat
- Insured worldwide delivery
- Duties prepaid for US, UK & Canada
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
Every stone, in one place
Filter by color, durability, birth month, or family — then tap any stone for its full entry.
Color
Durability
Birth month
Family
Signora offers
No stones match those filters.
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; Surat cuts ~90% of the world's diamonds
- 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 (~95%), 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, kinder origin
A lab-grown diamond is a diamond — identical carbon, identical sparkle, identical hardness — created in weeks rather than over a billion years, with no mining and a fraction of the cost.
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
Most colored gems are enhanced — these are stable, industry-standard practices, and we always tell you which you're getting.
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.
Certified, and yours to keep
Every primary stone comes with a report from a respected lab and a certificate to keep for insurance and any future repair.
IGILab-grown diamonds
GRAMoissanite
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 is chemically, physically, and optically identical to a mined one, and just as hard at a perfect 10. Only specialist laboratory equipment can tell them apart. The only real difference is origin: ours are grown in weeks with no mining.
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.
Almost always, yes — heat treatment is a standard, stable, permanent practice that deepens their color, and we always disclose it. Untreated stones exist but are rarer and priced accordingly.
Lab-grown diamonds come with an IGI report and moissanite with a GRA certificate, plus a certificate to keep for insurance and any future repair.
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 worldwide, with dedicated service to the US, UK, and Canada — every piece fully insured to your door.