EST. 1940 · MUMBAI · DIAMOND TRADERS
history_edu Generational Chronicle · Est. 1940
Mr. Alpesh Jhaveri, Master Diamantaire inspecting rough parcel in Mumbai trading facilities

Provenance Record

Mr. Alpesh Jhaveri

Trading Floor, Bandra Kurla Complex, Mumbai

diamond Argyle Legacy Appraiser
10x Triplet Loupe
The Diamantaire Philosophy
“A natural brown diamond possesses an organic warmth that colorless stones can never replicate. In our hands, brown is not a shade—it is an art form.”
Mr. Alpesh Jhaveri Master Diamantaire & Founder, Only Browns by Aman Gem Spanning three generations of diamantaire lineage, the Jhaveri family has elevated natural fancy browns from geological anomalies to the pinnacle of international haute joaillerie. Every brown diamond curated by our team is selected to optimize champagne light dispersion and cognac saturation.
85+ Years Continuous Trading
C1–C7 Calibrated Color Grading
100% Natural Earth-Mined
timeline Chronology of Distinction

Eight Decades of Diamond Trading Authority

From the storied alleys of Old Bombay's gem bazaars to our world-class diamond trading facilities in Mumbai.

1940 temple_hindu
Zaveri Bazaar Genesis

Natural Pearl & Gem Trading

Founded by the pioneering Jhaveri patriarchs in Bombay's historic gemstone quarter, establishing trusted family relationships with royal houses and merchant houses.

verified Old Bombay Registry
1969 flight_takeoff
Prasad Chambers Hub

Continental Rough Inflow

Transition to Opera House's Prasad Chambers, pioneering primary direct rough allocations from Antwerp and alluvial African deposits for high-yield faceting.

verified Antwerp Direct Syndicate
1994 diamond
Dedicated Brown Trading

Specialized Brown Diamond Trading

Established dedicated sourcing and wholesale trading operations for natural brown diamonds, expanding direct distribution to international markets.

verified Direct Wholesale Bourse
2010 hotel_class
The Monograph Focus

Launch of Only Browns

Mr. Alpesh Jhaveri pivots the firm to focus exclusively on naturally colored brown diamonds—Champagne (C1–C3), Cognac (C4–C6), and dark Argyle Chocolates.

verified Brand Trademark Registered
2021+ corporate_fare
Modern Trading Core

Modern Trading Headquarters

Headquarters established in Tower DC-1170, BKC, Mumbai. Direct integration into secure global vault transit servicing Geneva, Place Vendôme, and Fifth Ave.

verified Accredited Member #AG-740
architecture The Diamond Selection Protocol

The 6-Stage Master Craft Approach

Unlike colorless diamonds cut purely for refractive table return, fancy brown crystals demand nuanced orientation of structural grain dislocations to draw out profound honey, cognac, and hazel warmth.

PAVILION 41.2° CROWN 34.5°
01 Stage One

Rough Sourcing & Extraction Ethics

Direct consignment agreements with heritage Argyle Australian stockpiles, alluvial Angola basins, and northern African kimberlites. Every crystal is selected for structural brown plastic deformation without internal knot strain.

travel_explore Source Audit Kimberley Process
02 Stage Two

3D Laser Scanning & Color Mapping

High-definition Sarine DiaMension volumetric scanning maps internal inclusions and structural zoning. We computationally model light rays to trap color inside the culet, enriching the visual tone from C2 (Champagne) to C5 (Cognac).

view_in_ar Volumetric Scan 0.005mm Tolerance
03 Stage Three

Laser Cleaving & Crystal Alignment

Unlike standard octahedrons, brown diamonds possess complex natural twinning lamellae. Nd:YAG high-frequency cold lasers divide the rough without generating heat stress that could otherwise fracture deep chocolate stones.

flash_on Laser Slicing Zero Thermal Shock
04 Stage Four

Master Facet Inspection & Cut Grading

Master diamantaires with 30+ years of dedicated fancy brown experience scrupulously inspect each diamond under 10x and 40x darkfield loupes, ensuring ultra-crisp facet junction meet-points, optimal symmetry, and maximum light dispersion.

verified Master Inspection Triple Excellent Spec
05 Stage Five

Dual-Lab Verification (GIA & IGI)

Every solitary stone is sent to the Gemological Institute of America (GIA) or International Gemological Institute (IGI) for independent color grading, confirming Natural Origin and pinpointing hue (Light Champagne to Deep Cognac).

workspace_premium Official Dossier Dual Verification
06 Stage Six

Vault Custody & Armored Transit

Secure vault storage at Tower DC-1170, BKC, Mumbai. Dispatch to international ateliers via dedicated Malca-Amit and Brink’s armored air transit with full insured door-to-bench memo custody.

lock Armored Transit Global Port Delivery
verified_user Institutional Trust

Certified Integrity & Global Governance

Since our founding in 1940, Aman Gem has operated with unimpeachable transparency. In an era where origin accountability defines true luxury, our supply chain guarantees 100% untainted provenance, zero conflict mining, and total compliance with OECD Due Diligence frameworks.

policy
Standard #1

Kimberley Process (KPCS)

Every parcel arriving at our Mumbai trading facilities possesses a government-validated Kimberley Process certificate. We enforce zero-tolerance for conflict diamonds, ensuring legitimate trade channels that protect sovereign mining communities.

health_and_safety
Standard #2

WFDB Ethical Principles

Aman Gem adheres strictly to the World Federation of Diamond Bourses principles and ethical trade governance. Mumbai trading facilities operate under audited human rights, fair wage parameters, and environmentally conscious protocols.

gavel
Standard #3

OECD 5-Step Due Diligence

Full alignment with the OECD Due Diligence Guidance for Responsible Supply Chains of Minerals from Conflict-Affected and High-Risk Areas. Transparent audit rails trace conflict-free diamonds through certified ethical trade channels.

Private Atelier Consultation

Examine Certified Champagne & Cognac Parcels

High jewelry ateliers and authorized diamantaires are invited to schedule an inspection session at our Mumbai private vault or request a worldwide insured consignment memo.