Gemfields：2025全球祖母绿、红宝石和蓝宝石供应研究报告：市场数据分析（英文版）（113页）.pdf

1、 Understanding the Global Supply of Emerald,Ruby and Sapphire Market Research LAURIAN E PINSAULT,GEOGEMS,F EB RUARY 2025 UNDERSTANDING THE GLOBAL SUPPLY OF EMERALD,RUBY AND SAPPHIRE 2025 GEMFIELDS LIMITED Page|2 Table of Contents I.Scope of this paper.4 II.Collaborative work and acknowledgements.5 I

2、II.Challenges.6 Note on trade flows and UN Comtrade data.7 IV.Global supply of rubies.11 1.Introduction.11 2.Kenya.12 3.Madagascar.14 4.Mozambique.17 5.Myanmar.21 6.Tanzania.26 7.Thailand.29 8.Other countries.34 9.Compiled data.40 V.Global supply of emeralds.43 1.Introduction.43 2.Brazil.44 3.Colomb

3、ia.47 4.Russia.53 5.Zambia.56 6.Zimbabwe.59 7.Other countries.63 8.Compiled data.67 VI.Global supply of sapphires.70 1.Introduction.70 2.Australia.71 3.Kenya.74 4.Madagascar.76 5.Myanmar.79 6.Sri Lanka.82 7.Thailand.89 9.USA.91 10.Other African Countries.92 11.Other Asian Regions.95 UNDERSTANDING TH

4、E GLOBAL SUPPLY OF EMERALD,RUBY AND SAPPHIRE 2025 GEMFIELDS LIMITED Page|3 12.Compiled Data.99 VII.References.101 1.Literature.101 2.Websites.108 VIII.NOTES TO EDITORS.112 UNDERSTANDING THE GLOBAL SUPPLY OF EMERALD,RUBY AND SAPPHIRE 2025 GEMFIELDS LIMITED Page|4 I.Scope of this paper This paper foll

5、ows on from the report Global Emerald&Ruby Supply:Analysing Market Data,written for and published by Gemfields in March 2022.The first report used different sources of data(notably UN Comtrade and USGS)and compared these with miners direct information(notably from Gemfields,Grizzly and Fedesmeraldas

6、).This research indicated that online data related to coloured gemstone supply is unreliable,often missing,and values are underdeclared.This new research has three objectives:1.Restructure and update data from the previous report 2.Add market analysis of sapphire 3.Find new sources of information,wo