Blue Star Diamonds

What Blue Star Diamonds does

Blue Star Diamonds is a vertically integrated diamond manufacturer and distributor founded in 1966, headquartered at the Bharat Diamond Bourse in Mumbai, India. The company sources rough diamonds through direct long-term agreements with major miners — De Beers Sightholder since 1994, Dominion Diamond Preferred Purchaser since 2007, and Alrosa long-term contract holder since 2009 — and manufactures polished diamonds ranging from 0.18ct pointers to over 10 carats across clarities IF–I3 and colors D–M. Manufacturing is concentrated in a state-of-the-art Surat facility opened in 2007, equipped with Galaxy, Helium, and Sarin systems, complemented by a cutting factory in Gaborone, Botswana opened in 2011. The company operates as part of the A-Star Alliance (formalized 2019), an integrated family-owned group that also includes Arjav Diamonds (rough distribution, established 1981 in Antwerp) and Aurostar (polished distribution and branded product lines), giving the combined entity a direct in-market presence in India, Belgium, the UAE, Botswana, Hong Kong, the United States, and Australia.

The company's product portfolio spans certified diamonds (GIA, IGI, HRD dossiers and full reports), uncertified stock, fancy shapes (Princess, Cushion, Emerald, Asscher, Radiant, Pear, Marquise, Heart, Oval), and proprietary bespoke cuts developed through in-house R&D. Differentiated offerings include Forevermark and Canadamark branded lines, the patented Luminus Diamond line distributed via Aurostar, and authorized Argyle Pink Diamond supply. Distribution combines enterprise field sales, a B2C-capable e-commerce site (www.BlueStardiamond.com) with client-login account management, native iOS/Android mobile applications (launched 2014), and an online auction platform with 'Best Bargains' promotions (launched 2015). Logistics are executed through insured door-to-door armoured shipping via Brinks, Malca Amit, BVC Express, UPS, and FedEx.

Revenue is generated primarily through one-time polished diamond transactions priced on a Fixed Price Policy with advance payment terms, supplemented by bespoke custom-cut commissions and transaction-fee-based online auctions. Customers are global diamond traders, jewelry manufacturers, and retailers requiring reliable large-scale polished supply, certified provenance, and specific parameter-matching for downstream programs. Pricing tiers differentiate between certified and uncertified stock, pointer sizes, 4-grainers-up, and fancy shapes across D–M color and IF–I3 clarity ranges. The company is a privately held Blue Star Diamonds Pvt. Ltd. (CIN U36911MH2008PTC188710), family-owned across three generations of the Mehta family, with no disclosed external equity or debt funding. Responsible-sourcing certifications include the Kimberley Process, Responsible Jewellery Council, OECD compliance, and adherence to DTC Best Practice Principles.

Name

Blue Star Diamonds

Legal name

Blue Star Diamonds Pvt. Ltd.

Website

https://bluestardiamonds.com

Company type

Private

Founded year

1966

Operating status

Operating

Headcount range

1,001–5,000 employees

Short description

Blue Star Diamonds is a vertically integrated diamond manufacturer and distributor founded in 1966, sourcing rough from De Beers and Alrosa to produce polished diamonds (0.18ct–10ct+) for global traders, jewelry manufacturers, and retailers through its A-Star Alliance network spanning seven countries.

Ownership category

akta.pro rank

Product category

Polished Diamond Manufacturing

NAICS

Jewelry and Silverware Manufacturing (33991), Jewelry, Watch, Precious Stone, and Precious Metal Merchant Wholesalers (423940)

SIC

Jewelry, Precious Metal (3911), Wholesale-Jewelry, Watches, Precious Stones & Metals (5094), Jewelry, Silverware & Plated Ware (3910)

akta.pro primary industry

Diamond Cutting & Polishing (Manufacturing) (CRAKAJAA)

akta.pro secondary industry

Diamond Jewelry (CRAKAAAA)

Keywords

• Polished diamond manufacturing
• Diamond distribution wholesale
• Bespoke diamond cutting
• Certified loose diamonds
• Diamond sightholder supply

Headquarters

HQ city

Mumbai

HQ country

India

HQ region

Asia

Offices8 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Personnel, Operations, Infrastructure, Technology or R&D, Marketing or Sales

Revenue model

1. Polished Diamond Sales: Primary revenue from manufacturing and distributing polished diamonds ranging from pointers (0.18ct) to 10ct+ polished goods. The company sells both certified diamonds (GIA, IGI, HRD) and uncertified stock to global traders, retailers and jewelry manufacturers. Sales are conducted through direct online platform, mobile apps, and enterprise sales relationships.
2. Custom/Bespoke Diamond Manufacturing: Service-oriented polished supplier providing clients with tailored assortments selected and composed according to their specific requirements including highly specific layouts for jewelry and matching pairs. Clients can also order diamonds as per their specification of any size, shape, colour and clarity.
3. Online Auction Services: Started online auction operations in 2015, offering diamonds through digital bidding platforms. Best Bargains program provides additional sales channel for inventory optimization.

Pricing tiers

Go-to-market motion2 records

Distribution channels5 records

Marketing channels4 records

Core offering

Blue Star Diamonds manufactures and distributes polished diamonds ranging from pointers (0.18ct) to over 10 carats, in round and fancy shapes, with clarities from IF to I3 and colors from D to M. The company produces both certified (GIA, IGI, HRD, Forevermark, Canadamark) and uncertified stock, and offers bespoke and proprietary cut diamonds tailored to client specifications. Sales are conducted through an online platform, mobile applications, enterprise field sales and online auctions to global diamond traders, jewelry manufacturers and retailers.

Product overview

Blue Star Diamonds is a diamond manufacturer and distributor operating as part of the A-Star Alliance. The company offers a comprehensive portfolio including polished diamonds (pointers to 10ct), certified diamonds (GIA, IGI, HRD certified), fancy shape diamonds, and bespoke/custom cut proprietary diamonds. Their offerings are supported by an online auction platform and Best Bargains value category. The company combines traditional craftsmanship with modern technology in their Surat, India facility to produce diamonds in all categories from 0.18ct to over 10ct.

Differentiator

Problem solved

Functional benefit

Products and services

• Polished Diamonds (Pointers to 10ct) Manufacturer and distributor of polished diamonds ranging from pointers to 10 carats, available in certified and uncertified stock with a focus on excellent cut and ideal make parameters. Sold to global diamond traders, jewelry manufacturers and retailers.
• Certified Diamonds Diamonds certified by third-party gemological laboratories including GIA, IGI, HRD, and IIDGR, as well as Forevermark and Canadamark branded diamonds, sold to trade buyers requiring verified grading and responsible sourcing credentials.
• Fancy Shape Diamonds Fancy shaped diamonds including Princess, Cushion, Emerald, Asscher, Radiant, Pear, Marquise, Heart, Oval, and specialized proprietary cuts, sold to jewelry manufacturers and retailers for use in finished jewelry designs.
• Bespoke and Custom Cut Diamonds Proprietary special cuts and bespoke manufacturing services allowing customers to order diamonds customized to their specific size, shape, color, and clarity requirements, for retailers and manufacturers seeking exclusive cuts.
• Tailored Diamond Assortments Customized diamond assortments composed according to specific customer requirements, including highly specific layouts for jewelry and matching pairs, supplied to jewelry manufacturers and retailers.
• Online Auction Platform Online platform for participating in auctions and bidding on diamonds from Blue Star Diamonds' polished inventory, used by global trade buyers.
• Best Bargains Program Special offering category for discounted or value-priced polished diamonds from the company's inventory, sold via the online platform.

Segments3 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

14 partnerships are on record, tiered flagship, core and minor.

• A-Star AllianceflagshipStrategic or Co-development Partner · 1 January 2019A-Star Alliance is an alliance between three independent groups owned by the Mehta family: Blue Star Diamonds, Arjav Diamonds, and Aurostar. The alliance optimizes synergies shared by the three groups. Individual assets of each group are complemented by strengths of the others, creating a strong alliance in the diamond industry.
• Kimberley ProcesscoreOthers · 1 January 2019Blue Star Group is fully committed to complying with all requirements specified in the Kimberley Process Certification Scheme. All sourced diamonds are guaranteed conflict-free while adhering to the Kimberly Process.
• Responsible Jewellery CouncilcoreOthers · 1 January 2019Blue Star Group adheres to the Responsible Jewellery Council standards, ensuring ethical practices throughout the supply chain from sourcing to manufacturing.
• Argyle Pink DiamondsminorStrategic or Co-development Partner · 1 January 2019Aurostar (part of A-Star Alliance) is an Authorised Argyle Pink Diamond trade partner, enabling distribution of rare pink diamonds from Australia's Argyle mine.
• ForevermarkcoreStrategic or Co-development Partner · 1 January 2012Blue Star Diamonds became Forevermark distributors for the US in 2012. The company offers Forevermark branded diamonds as part of its responsible sourcing commitment. Aurostar is also an authorized Forevermark manufacturer.
• CanadaMarkcoreStrategic or Co-development Partner · 1 January 2011Blue Star Diamonds became an approved CanadaMark™ Manufacturer in 2011. This certification enables the company to offer Canadamark branded diamonds, assuring responsible sourcing and manufacturing integrity.
• AlrosacoreStrategic or Co-development Partner · 1 January 2009Blue Star Diamonds has been a regular buyer from Alrosa since 2009, ensuring a steady rough supply of diamonds on a consistent scale. Arjav Diamonds (part of A-Star Alliance) is also a long-term contract holder with Alrosa, providing additional sourcing strength.
• Aurostar GroupflagshipStrategic or Co-development Partner · 1 January 2009Part of A-Star Alliance. Headquartered in Dubai with offices in Hong Kong, USA, and Australia and factory in Botswana. Authorised Argyle Pink Diamond trade partner and distributor of the patented Luminus Diamond brand. Authorized Forevermark manufacturer.
• Dominion DiamondcoreStrategic or Co-development Partner · 1 January 2007Blue Star Diamonds has been a Dominion Diamond Preferred Purchaser since 2007. This relationship contributes to the company's strong and consistent rough intake, enabling continuous and dependable supply to customers.
• De Beers / DTCcoreStrategic or Co-development Partner · 1 January 1994Blue Star Diamonds became a De Beers Sightholder in 1994. The company obtains rough diamonds through DTC (De Beers' Diamond Trading Company) and has obtained a second DTC Sight. Arjav Diamonds Botswana is also a Sightholder.
• Arjav DiamondsflagshipStrategic or Co-development Partner · 1 January 1981Part of A-Star Alliance. Established in 1981 in Antwerp, Belgium. One of the most important rough diamond distributors in the world, sourcing rough from a wide variety of direct sources including De Beers Sightholder status and Alrosa long-term contract. Manufacturing and R&D facility in Gaborone, Botswana.
• GIA (Gemological Institute of America)coreTechnology or IntegrationBlue Star Diamonds has diamonds certified by GIA, one of the most reputable third-party gemology laboratories. GIA certification covers diamonds from 0.18-0.89ct (Dossiers) and 0.90-5.99ct in various clarities and colors.
• IGI (International Gemological Institute)coreTechnology or IntegrationBlue Star Diamonds has diamonds certified by IGI, an internationally recognized gemology laboratory. IGI certification covers diamonds from 0.90-5.99ct range.
• HRD (Hoge Raad voor Diamant)coreTechnology or IntegrationBlue Star Diamonds has diamonds certified by HRD (Diamond High Council), a leading European gemology laboratory. HRD certification covers diamonds from 0.90-5.99ct range.

Scale indicators4 records

Recent moves15 records

Expansion highlights5 records

Direct peers

• Rosy Blue: Major global diamond manufacturer and sightholder with operations in India, Belgium, and Hong Kong, offering polished diamonds and bespoke cuts to retailers worldwide - directly comparable as a multi-generational family-owned sightholder manufacturer.
• Dalumi Diamonds: De Beers Sightholder and diamond manufacturer with manufacturing in India and global sales offices, offering polished diamonds and proprietary cuts to major retailers - directly comparable in manufacturing footprint and B2B go-to-market.
• Venus Jewel: India-based polished diamond manufacturer with De Beers Sightholder status, focused on high-quality round and fancy shapes with proprietary cut portfolios - directly comparable in cut innovation and B2B customer base.
• Shree Ramkrishna Exports (SRK): Top-tier Surat-based diamond manufacturer and De Beers Sightholder, offering polished diamonds and proprietary cuts globally. Closely comparable in manufacturing scale, ethical-sourcing certifications, and global B2B distribution to Blue Star.
• Leo Schachter: Global diamond manufacturer and sightholder with proprietary branded cuts (Luminous, Lily, Crisscut) and offices across the US, Israel, India, and Asia. Comparable in proprietary cut development and global retail relationships.
• Hari Krishna Exports: Large Indian sightholder-level diamond manufacturer and distributor with global presence and similar B2B focus - directly comparable across product range, customer base, and supply relationships to Blue Star.
• Diarough: Vertically integrated diamond manufacturer and sightholder with offices in Antwerp, Hong Kong, India, and New York. Directly comparable in global B2B distribution, proprietary cuts, and certified-diamond programs.
• Kiran Gems: Largest diamond manufacturer in India and a De Beers Sightholder, manufacturing polished diamonds across similar size ranges with global B2B distribution - directly comparable in scale, sightholder status, and customer base to Blue Star.

Broad incumbents

• De Beers Group: Vertically integrated diamond mining and marketing major that both sources rough to Blue Star and competes in downstream polished/branded jewelry (De Beers Jewellers, Forevermark). A counterparty and broader industry incumbent that shapes Blue Star's supply and competitive context.

Others

• Sarine Technologies: Provider of diamond manufacturing technology (Galaxy, Helium, Sarin systems) and grading/digital services used by Blue Star. An enabling ecosystem participant - not a direct competitor, but a key technology vendor and digitalization bellwether for the industry.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/bluestardiam
• Facebookfacebook.com/bluestardiamondspvt
• LinkedInlinkedin.com/company/blue-star-diamonds

Compliance10 records

Revenue estimate

Valuation estimate

Number of profiles

Subsidiaries6 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Blue Star Diamonds