Journal — jewellery & precious stone guides

bague de fiançailles saphir bleu bonnot paris

Blue Sapphire: The Complete Guide (Meaning, Price & Origin)

Bonnot Paris · The Precious Stone Journal 2026 Blue Sapphire: the complete guide — meaning, price and origin Colour, origins, symbolism, quality and price — everything you need to know before choosing a blue sapphire, by our precious-stone dealers. By François Deprez, founder · Complete guide · 9 min […]

Marie6/7/2026

Teal Sapphire: The Rising Star of Modern Fine Jewellery

Bonnot Paris · The Precious Stone Journal 2026 Teal Sapphire: the rising star of modern fine jewellery Colour, origins, shades, price — everything you need to know before choosing a blue-green sapphire, by our coloured-stone dealers. By François Deprez, founder · Complete guide · 8 min · Updated […]

Marie6/7/2026

The Ruby Guide: origins, quality, price and expert advice

Bonnot Paris · The Precious Stone Guide 2026 The Ruby Guide: origins, quality, price and expert advice Everything you need to know before choosing a ruby — by our coloured-stone dealers, without jargon or commercial bias. By François Deprez, founder · Complete guide · 9 min · Updated […]

Marie15/6/2026

Sapphire or Diamond for Your Ring? | Bonnot Paris

Bonnot Paris · Engagement Ring Guide 2026 Sapphire or Diamond: which to choose for your engagement ring? The honest comparison by our precious-stone experts — to help you make the choice that truly reflects you, with no commercial bias. By François Deprez, founder · Complete guide · 8 min · […]

Marie29/4/2026

Emerald Engagement Ring: The Complete Buying Guide

Emerald engagement ring: the buying guide — Bonnot Paris Engagements · Bonnot Paris Guide Emerald engagement ring: the buying guide Choosing the stone, origin, setting and metal: everything you need to compose the perfect emerald engagement ring. Engagements 8 min read Maison Bonnot Contents 01 Why emerald 02 Choosing […]

Marie29/4/2026

Alexandrite: The Rare Colour-Changing Gemstone

Bonnot Paris · Stone Guide Alexandrite, the stone that changes colour Emerald by day, ruby by night. A complete guide to one of the world's rarest and most fascinating gems — origins, quality criteria, pricing and meaning. Expert Guide·Rare Precious Stone·Bespoke Fine Jewellery · Paris Contents 01What is alexandrite? 02History and origins […]

Marie29/4/2026

Jewellery, Trends & Advice

Blue Sapphire: The Complete Guide (Meaning, Price & Origin)

Teal Sapphire: The Rising Star of Modern Fine Jewellery

The Ruby Guide: origins, quality, price and expert advice

Sapphire or Diamond for Your Ring? | Bonnot Paris

Emerald Engagement Ring: The Complete Buying Guide

Alexandrite: The Rare Colour-Changing Gemstone

Jewellery, Trends & Advice

Blue Sapphire: The Complete Guide (Meaning, Price & Origin)

Teal Sapphire: The Rising Star of Modern Fine Jewellery

The Ruby Guide: origins, quality, price and expert advice

Sapphire or Diamond for Your Ring? | Bonnot Paris

Emerald Engagement Ring: The Complete Buying Guide

Alexandrite: The Rare Colour-Changing Gemstone