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Thahby Journal and its topics Gold and jewelry store directory About us Contact us Prices and calculators Invoice and making-charge assessment Currency converter Gold chart and weekly history Gold news All countries and territories Guides Privacy policy

Calculations and buying

How to calculate gold value by weight and karat Gold making charges and your invoice Gold zakat and mixed karats Buying gold for savings Selling used gold: comparing offers A jewellery buying checklist

Gold basics

Gold karats: 24K, 22K, 21K and 18K Bahraini, Turkish, Kuwaiti and Italian gold White gold, silver and platinum How to distinguish gold from silver and imitations Gold and jewellery glossary

Bars and metals

Gold bars: types, weights and fineness Silver fineness: 999, 958, 925 and 800 Silver bars: weight, purity and total cost Gold weight units: grams, troy ounces and tolas

Sizing and design

How to measure your ring size Bracelet and bangle sizing Choosing a necklace length Gold chain styles explained Cast, worked, hollow and tubular bangles

Diamonds and gemstones

Diamond designs and stone settings Understanding diamond quality: the 4Cs Natural diamonds, laboratory-grown diamonds and simulants How to read and check a diamond report Ruby, sapphire and emerald: a first guide Natural and cultured pearls: choosing jewellery

History and culture

Gold in the history of world cultures Gold in Arab and Islamic history

Care and testing

Caring for gold, silver and gemstones

Diamond valuation

Diamond valuation

Watch guide

Rolex GMT-Master II 126710BLNR: specifications and GMT | Thahby Rolex Daytona 126500LN: chronograph and specifications | Thahby Cartier Santos WSSA0018: size, specifications and features | Thahby AP Royal Oak 15510ST.06: specifications, movement and dial | Thahby Patek Philippe Aquanaut 5167A-001: specifications and design | Thahby Rolex Submariner 124060: specifications without date | Thahby Rolex watches: models and specifications | Thahby Cartier watches: models and specifications | Thahby Audemars Piguet watches: models and specifications | Thahby Patek Philippe watches: models and specifications | Thahby Watch guide: models, specifications and features | Thahby Watch terminology: GMT, chronograph and power reserve | Thahby