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AUMIKA® · A Private Atelier · By Appointment

One-of-a-kind
engagement rings,
never repeated.

AUMIKA® creates meaningful fine jewelry with 100% natural diamonds and gemstones — founder-guided sourcing, GIA®-backed confidence, and ready-to-ship pieces for moments that cannot wait.

GIA Gemological Institute of America100% Natural DiamondsFounder Sourced
Featured This Week
AUMIKA Halo Round Diamond Ring with GIA graded natural diamond
AUMIKA® Halo Round Diamond Ring
GIA® ReportIndependent grading on qualifying center diamonds.
Ask TilakDiscuss this ring or commission one around a stone sourced for you.
Ask Tilak about this piece, or commission one like it →
Tilak KumarTilak Kumar, founder of AUMIKA, in an AUMIKA jewelry atelier setting
Meet The Founder

Meet Tilak Kumar — Founder of AUMIKA®.

GIA® Graduate GemologistDiamond Cutter · Trained in SuratGoldsmith · 4th-Generation FamilyGem Trader · Bangkok & MumbaiSourced In 40+ CountriesNYC Diamond DistrictArun Gems Intl. (AGI) · 2009US Navy Combat VeteranFirst-Generation Immigrant
GIA Gemological Institute of AmericaArun Gems International · 2009

AUMIKA® was founded by Tilak Kumar, a GIA® Graduate Gemologist and US Navy combat veteran whose journey into gemstones began long before the brand itself. Coming from a traditional goldsmith family in Bharat, and trained in Surat — the diamond capital of the world — Tilak brings over two decades of diamond and gemstone experience to every AUMIKA® piece.

In 2009, Tilak founded Arun Gems International (AGI), sourcing rare diamonds and gemstones across more than forty countries. AUMIKA® is the fine-jewelry house built on that lifetime of sourcing — begin with the right stone, then quietly craft the piece around it. Each one created once, and never repeated.

A stone is not a product. It is a once-occurring geological event. The piece we build around it should be equally singular.
Are you a service member or veteran? Tilak is too — Explore Your Veteran Jeweler →
The AUMIKA® System

Five deliberate stages, by design.

We plan for the next thirty years of your piece—from the sourcing trip to the future trade-up evaluation.

  1. i.
    Source

    Tilak personally inspects center stones across Antwerp, Mumbai, Bangkok, and Jaipur. No catalogues, only direct selection.

    4–24 Weeks
  2. ii.
    Design

    Custom CAD and physical wax models are structured around your selected stone. Unlimited revisions at the NYC bench.

    2–8 Weeks
  3. iii.
    Finance

    Flexible structured plans. 0% APR terms via Affirm, Klarna, or a tailored installment cycle matching the build timeline.

    Tailored Terms
  4. iv.
    Insure

    Built-in worldwide coverage via Zillion. Protection against theft, loss, or damage with immediate checkout enrollment.

    Instant Quote
  5. v.
    Resale

    Your natural stone's documentation holds value. Independent appraisals and trade-up cycles are pre-planned.

    Lifetime Guarantee
The Distinctions

Atelier curation vs. mass inventory.

Standard retailers start with inventory. AUMIKA® starts with the person, then sources and builds around a stone selected for that exact moment.

Standard Retailers
AUMIKA® Atelier
Sourcing

Inventory feeds, stock certificates, and pre-set options often chosen before anyone understands the wearer.

Founder-led shortlists from direct sourcing relationships, evaluated for optical life, proportions, origin, documentation, and long-term suitability.

Design

The ring is adapted to the available setting, with speed and repeatability driving the experience.

The setting is built around the selected stone and the person who will wear it. The goal is singularity, not volume.

Documentation

Generic receipts, generic certificates, and unclear resale or insurance support after purchase.

GIA® documentation where applicable, founder review, appraisal-ready records, insurance guidance, and future trade-up conversations.

The Atelier

Commissioned.
Sourced.
Made for one.

Every commission begins with a private thirty-minute conversation — never a brief, never a form. It becomes a stone sourced from a name you may recognise, a setting drawn at the bench in New York's Diamond District, and a piece signed off personally by Tilak. Discretion at every stage. Documented for the lifetime of the wearer, and the one after. Learn more about our sourcing and commissioning processes.

Private consultation with Tilak at the AUMIKA atelierNatural diamond sourcing and stone selectionAUMIKA ring design and bench craftsmanshipGIA report and AUMIKA documentation verification

01. Private Consultation (30 Mins)

Define style directions, metals, and diamond choices with Tilak. Book Session →

02. Direct Sourcing

We inspect natural stones on primary markets for optical excellence. Explore Stone Sourcing →

03. NYC Custom Fabrication

Settings hand-built around the specific proportions of your stone in NYC. Explore Custom Commissioning →

04. GIA Verification

Detailed documentation, GIA grading reports, and founder sign-off. Start Your Commission →

Atelier Entry

Three pathways into the atelier.

Choose your approach below to begin your consultation cycle.

Every option commences with a private virtual consultation. No pre-made catalogs.

Initiate Ring

Bridal Commission

Specify design parameters and budget guidelines. We source candidate stones and craft the setting around your selection.

Timeline: 12–20 Weeks
Book Bridal Session →
Generational Legacy

Heirloom Design

Re-mount ancestral diamonds into modern settings, or commission matching sets for anniversaries and milestones.

Timeline: 8–16 Weeks
Book Heirloom Session →
Bespoke Curation

Specific Stone Sourcing

Define targets for rare cuts, colors, or geological origins. Tilak sources directly via global gem networks.

Timeline: 4–24 Weeks
Book Sourcing Session →
Engagement Rings

Created once. Never repeated.

Every AUMIKA® engagement ring is built around a single, hand-picked natural diamond or gemstone — sourced by Tilak personally and verified by GIA®. Explore our sourcing standards, choose from existing styles, or begin a fully bespoke commission.
Luxury Gifts

Fine jewelry for the moments people remember.

Shop AUMIKA® luxury gifts for anniversary, milestone, and signature celebrations — curated paths into our collections, with personal founder guidance and exquisite presentation.

Custom CommissionSolitaire Diamond Cushion Halo Studs With Detachable JacketView Details
The Legacy Collection
Solitaire Diamond Cushion Halo Studs With Detachable Jacket
100% natural diamonds and gemstones · AUMIKA® live catalog
$3,550.00
Custom Commission18K Yellow Gold Pendent With Center PeridotView Details
The Legacy Collection
18K Yellow Gold Pendent With Center Peridot
100% natural diamonds and gemstones · AUMIKA® live catalog
$1,550.00
Virtual Appointment

Discreet conversation, by appointment.

A private consultation with Tilak — over video from his New York atelier — to discuss the stone, the moment, and the lifetime that follows. Available worldwide. No transaction expected.

Private Consultation

A thirty-minute conversation with Tilak about a stone, a setting, or a piece you have in mind. Strictly advisory — nothing is presented for sale on the call.

Book Consultation

The Vault, Live

Walk our New York vault by video call. Tilak loupes stones for you on camera, compares cuts side-by-side, and answers anything in real time.

Book Shopping Session

Your Veteran Jeweler

For active military, reservists, veterans, and first responders. A dedicated appointment with Tilak — Navy combat veteran himself — covering program benefits across rings, bands, and heirloom commissions.

Speak With Tilak
30-Minute SessionsNo ObligationPersonal ExpertFree Consultation
Book a 30-Minute Virtual Appointment
100% Natural Diamonds

No treated, synthetic, or simulant diamonds.

AUMIKA® sells only 100% natural diamonds. Engagement rings with center diamonds above 0.30 cts come with GIA® certification where applicable. Diamonds are sourced and tested at each stage to meet AUMIKA® quality standards.

GIA Gemological Institute of AmericaCertificate of AuthenticityInternal Revenue ServiceAppraisal-ready records

AUMIKA® may reference GIA® reports where applicable. No government or laboratory endorsement is implied.

Read Quality Standards
100% Natural Diamonds
Sourced and tested at each stage
GIA® Certification
On qualifying center diamonds
Certificate of Authenticity
Detailing metal, stones, and provenance
Graduate Gemologist Review
Founder-led grading and judgment

Natural rarity vs. synthetic depreciation.

Choose an example diamond profile. The tool estimates today’s broad price ranges and shows an illustrative resale-value conversation over time for natural versus lab-grown/synthetic alternatives.

Natural diamond today
$4,800 – $11,300
Lab-grown / synthetic today
$740 – $2,300
Illustrative natural value
$4,400 – $10,400
Illustrative synthetic value
$110 – $350
Natural certified diamond92%
92%
Lab-grown / synthetic alternative15%
15%

Educational estimate only. Actual purchase price, resale price, trade-up terms, and appraisal outcomes vary by shape, carat, color, clarity, cut, certificate, market conditions, and buyer demand. This is not financial, tax, insurance, or investment advice.

Flexible Payment Options

Own the piece you love, with flexibility.

AUMIKA® offers flexible payment options through Affirm, Klarna, Amazon Pay, PayPal, and tailored custom plans. Product pages may also support partial payment and installment options.

AffirmKlarnaAmazon PayPayPal
  • Eligible installment options may vary by order and credit approval
  • Custom payment timing can be discussed for commission timelines
  • Payment details are processed through secure providers
  • Shipping occurs after payment terms are satisfied
Discuss Payment Options →
Jewelry Insurance

Protection beyond delivery.

AUMIKA® partners with Zillion so customers can protect eligible jewelry with independent coverage options and appraisal-ready documentation.

ZillionAppraisal-ready records
  • Coverage options may include loss, theft, accidental damage, and disappearance, subject to underwriting
  • Independent appraisal documentation supports insurance conversations
  • Claims and coverage questions should be handled directly by the insurer
Ask About Jewelry Insurance →

AUMIKA® is not a licensed insurance agent and does not advise on coverage. Zillion logo artwork should be added only after the authorized brand asset is uploaded.

Resale Value

Held in nature.

A 100% natural diamond or gemstone carries intrinsic value because supply is finite and certification is portable. AUMIKA® documents the provenance of every centre stone so an independent appraiser, insurer, or future buyer can verify what you own — no proprietary lock-in, no synthetic substitutions, no surprises.

Our Certificates of Authenticity are issued by a GIA® Graduate Gemologist and appraisal documentation prepared for insurance and tax conversations — accepted by major insurance companies for coverage and claims.

  • Independent appraisal accepted by major insurers
  • GIA® / IGI / HRD reports retain value across borders
  • Trade-up conversations available — speak with AUMIKA® for current terms
  • Natural, never synthetic — verified at sourcing and at the bench
100%
Natural Diamonds
& Gemstones
GIA®
Independent
Certification
Compliant
Appraisal
Lifetime
Documentation
Shipping & Assurance

From our hands to yours.

Free Shipping USA & Canada

Free secured shipping on every order. International shipping charges shown at checkout where available.

APO/FPO/DPO & Territories

APO, FPO, DPO, PO boxes, and US territories use USPS Priority Mail with delivery confirmation.

Insured Delivery

All AUMIKA® items are insured during shipment. Adult signature required upon delivery.

Special Casing

Protective packaging and presentation casing used during shipment — ready to be handed over.

Returns & Exchanges

Terms may vary by item.

Return and exchange terms may vary by item type. Ready-to-ship items, custom-made pieces, and specially sourced GIA® diamonds may follow different policies. Please review the specific product page or contact AUMIKA® before purchase.

Ready To Ship
May qualify for a 30-day refund policy.
Customized · Made to Order
May qualify for 45-day returns or exchange.
Specially Sourced GIA® Diamonds
May be final sale · adjustments or exchange may apply.
Your Veteran Jeweler

From One Veteran to Another — Commission With Trust.

Your Veteran Jeweler is a commitment of direct founder accountability, not a commercial discount tier. Tilak Kumar, founder of AUMIKA®, is a US Navy combat veteran and GIA® Graduate Gemologist. Under this program, we work directly with active duty service members, veterans, reservists, guardsmen, first responders, law enforcement, fire departments, EMS, and their families to source natural diamonds and gemstones with complete pricing transparency and direct bench rates.

When you commission a piece through Your Veteran Jeweler, you work directly with Tilak to custom-select your natural stone and design your setting. We ensure your one-of-a-kind jewelry is crafted with the discipline and care it deserves. Contact us to start your custom design — we verify military status securely and respond directly within 24 hours.

Active Duty
Veterans
Reserve & Guard
Military Families
Law Enforcement
Fire Departments
EMS
VFW Members

Program parameters are subject to direct validation and secure verification. Service branch names are used descriptively; no endorsement by the U.S. government, Department of Defense, or any military branch is implied.

Beyond The Purchase

Care, confidence, and support after your jewelry arrives.

AUMIKA® continues beyond delivery — with personal support, fine jewelry events, and notes when something worth knowing arrives.

Thank You

A personal purchase experience with support from the AUMIKA® team — from order confirmation to insured delivery and follow-up care.

Customer Support →

Jewelry Exhibition

Discover AUMIKA® through events, exhibitions, and private showcases where you can see pieces in person and meet the founder.

See Upcoming Events →

Sales & Promotion

Stay informed about new arrivals, offers, and private updates through the AUMIKA® List, where we write only when it matters.

Join The List →
Upcoming Events

See AUMIKA® in person.

Meet the founder, view natural diamonds and gemstones in person, and schedule a private AUMIKA® conversation at the selected 2026 shows.

View All Events
Jun
12
2026
Upcoming Exhibition

International Gem & Jewelry Show — Dallas, TX

Dallas Market Hall
June 12–14 · Private viewing appointments available
View Event Details
Jun
19
2026
Upcoming Exhibition

International Gem & Jewelry Show — Denver, CO

The Brighton
June 19–21 · Natural diamond and gemstone consultations
View Event Details
Jul
10
2026
Upcoming Exhibition

International Gem & Jewelry Show — San Mateo, CA

San Mateo Event Center
July 10–12 · West Coast private appointments
View Event Details
Which Path

How to choose, with no rush.

Not sure which side of AUMIKA® is right for you? Here is the quick read.

Pro · The Atelier

Commissioned for one.

Best if you have a stone in mind, a moment in mind, or a story you want carried in the piece. We guide. We source. We craft.

  • Founder-guided sourcing
  • Stone you approve before any metal is cut
  • Independently certified centre stone
  • Designed, sketched, hand-set
  • Documented at every stage
  • 12–20 weeks · sometimes longer for rare stones
Begin a Commission  →
from $5,000 · most begin with a 30-minute call
Sourcing Only

A stone, to your brief.

Best if you know what you want — cut, carat, origin — and want us to find it. Set with us or take the stone elsewhere.

  • Cut, carat, colour, origin to your brief
  • Three to five inspected options
  • Independent certification
  • Optional bespoke setting
  • 4–24 weeks depending on rarity
Send a Sourcing Brief  →
stone-only from $2,500 · with setting from $4,500
Ready-to-Ship

Already on the bench.

Best if you need it soon — anniversaries, gifts, milestones. Same hand, same certification, no wait.

  • Crafted in advance by our team
  • GIA®, IGI, or HRD where applicable
  • Insured, signature-required delivery
  • Returns and exchange clarity
  • Ships in 4–6 business days
Browse Ready-to-Ship  →
from $480 · free domestic shipping

Cannot tell which is right? Send us a note — we will say honestly.

Wedding Rings

Forever wear, in 100% natural diamonds.

Crafted to match the engagement ring or to stand alone. Half-eternity, full-eternity, channel-set, and classic comfort-fit rings — for her and for him.

Shop All Wedding Rings
Custom CommissionSatin Finish Tungsten Carbide Wedding RingView Details
Wedding Rings
Satin Finish Tungsten Carbide Wedding Ring
Natural diamonds and gemstones where applicable · AUMIKA® live catalog
$800.00
Custom CommissionDiamond Wedding Ring with Gem Of Your ChoiceView Details
Wedding Rings
Diamond Wedding Ring with Gem Of Your Choice
Natural diamonds and gemstones where applicable · AUMIKA® live catalog
$1,600.00
Custom CommissionTungsten Wedding Band With Channel Set Diamon...View Details
Wedding Rings
Tungsten Wedding Band With Channel Set Diamon...
Natural diamonds and gemstones where applicable · AUMIKA® live catalog
$950.00
Custom CommissionHaliSaros - 14k Yellow Gold Men’s Ring with...View Details
Wedding Rings
HaliSaros - 14k Yellow Gold Men’s Ring with...
Natural diamonds and gemstones where applicable · AUMIKA® live catalog
$1,100.00
Diamond Jewelry

Light in motion.

Natural diamond earrings, pendants, bracelets, necklaces, nosepins, and ready-to-ship fine jewelry from the live AUMIKA® catalog.

Shop All Diamond Jewelry
Gemstone Jewelry

Colour, with provenance.

Natural rubies, sapphires, emeralds, and gemstone-led fine jewelry selected from the live AUMIKA® catalog.

Shop All Gemstone Jewelry
Custom CommissionGIA Certified Pear Shaped Ruby Diamond drop E...View Details
Gemstone Jewelry
GIA Certified Pear Shaped Ruby Diamond drop E...
100% natural diamonds and gemstones · AUMIKA® live catalog
$9,190.00
Customer Stories

From the people who wear AUMIKA®.

Real moments, in customers' own words. Stories shared after delivery, with permission.

★★★★★

“We were very satisfied with the purchase of our special diamond over two carats.”

Romano GiacomettiPadova, Italy
★★★★★

“His professionalism and honesty never ceased to impress me. I trust AGI to be in the best hands possible.”

David Birling MiljanaParis, France
★★★★★

“AGI designed two special rings for me in 2009. Since then, AGI is our family jeweler.”

Diane RohGeneva, Switzerland

Stories shared by AUMIKA® customers (operating under Arun Gems International — “AGI”). Originally collected on aumika.com.

Learn Before You Buy

Founder-led jewelry education.

AUMIKA® founder shares knowledge on the fine jewelry industry — exploration, mining, cutting, sourcing, marketing, gem laboratories, and market analysis.

View All Articles
AUMIKA diamond buying education cover
Diamond Education

What do you need to know before buying diamond jewelry?

The 4Cs, certification, settings, metal choices, and the questions worth asking before a meaningful purchase.

Read Article →
AUMIKA diamond pricing education cover
Market & Sourcing

Why diamonds are so expensive?

Mining, cutting yields, grading, and what actually determines the price of a natural diamond at retail.

Read Article →
AUMIKA diamond myths education cover
Myths & Misconceptions

Top 5 myths about diamonds

Lab versus natural, fluorescence, color, clarity, and certification — clarified by a GIA® Graduate Gemologist.

Read Article →
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