Deep-dive technical reports, diamond market intelligence, and historical analysis curated specifically for the elite B2B gemstone trade.
GemologyHPHT technology can grow laboratory diamonds or alter the color of certain natural and laboratory-grown diamonds. The distinction requires clear identification and disclosure.
Market ReportLaboratory-grown diamonds share diamond's essential composition and optical properties, but their growth origin and treatments can be identified with advanced testing.
GemologyWith synthetic diamonds matching the chemical and physical properties of natural stones, standard testing is no longer sufficient. We outline advanced laboratory screening techniques.
GemologyChemical Vapor Deposition (CVD) represents a major scientific breakthrough. We look inside the vacuum chamber to examine carbon plasma deposition and post-growth color treatments.
Market ReportEnvironmental impact depends on evidence, system boundaries, energy sources, mining conditions, and traceability. Broad labels alone do not establish a lower footprint.
Buyer's GuideUse this five-step checklist to verify color origin, treatments, documentation, seller details, and transaction terms before a wholesale purchase.
GemologyGIA, IGI, and HRD Antwerp offer different report products. Buyers should compare the stated origin, color, treatments, measurements, and verification path on the actual report.
Market ReportPublic auction results document what individual exceptional stones achieved under specific sale conditions. They are useful references, but not general price lists.
Buyer's GuideThe Israel Diamond Exchange in Ramat Gan is one of the world's major diamond trading hubs. We explain the bourse system, why it exists, and what it means for B2B buyers sourcing directly from a licensed member.
GemologyFancy color grading considers hue, tone, and saturation. The full grade helps describe a stone, but it is not a fixed pricing formula.
GemologyGIA places the predominant hue last in a multi-word color description. Terms such as 'grayish blue' and 'purplish pink' should therefore be read as complete grades, not shortened to the final color.
Buyer's GuideThe Argyle mine ended production in November 2020. This guide explains what buyers should verify before treating a pink diamond as documented Argyle-origin material.
Buyer's GuideCarat measures weight, while measurements describe spread. Learn how weight interacts with color, cut, and rarity when comparing fancy color diamonds.
Buyer's GuideFancy color can shift across lighting, camera, and display conditions. Use a repeatable workflow and pair every image with the stone's exact report status.
Buyer's GuideDiamond shipping terms vary by route and transaction. This checklist helps buyers confirm coverage, custody, customs, delivery, and transfer of risk before dispatch.
Market ReportDiamond transactions can trigger identification, record-keeping, and reporting duties. This guide explains why the information requested depends on the parties and the transaction.
Buyer's GuideA practical guide to selecting, presenting, and setting fancy color diamonds for engagement rings without relying on broad trend claims.
Buyer's GuidePlan fancy color diamond inventory from your own enquiries and sales data, then decide which stones to hold, source on request, or reserve for specific buyers.
Diamond HistoryThe Pink Star holds the auction record for any diamond, gemstone, or jewel. It began as a 132.5-carat rough and sold for $71.2 million in 2017.
Diamond HistoryThe Oppenheimer Blue carries the name of a former De Beers chairman. In May 2016 it sold for $57.5 million and set a record for any jewel sold at auction at the time.
Diamond HistoryLaurence Graff bought the 24.78-carat Fancy Intense Pink diamond at Sotheby's in 2010 for approximately $46 million and gave it the name Graff Pink.
Diamond HistoryOriginally mined roughly a century before its sale and once held by the family behind De Beers, this 18.96-carat Fancy Vivid Pink diamond sold for $50.375 million at Christie's Geneva in 2018, before Harry Winston renamed it.
