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Diamonds
AGS Diamond Grading System
What Are the 4 Cs of Diamonds?
Understanding Diamond Cut
Understanding Diamond Color
Understanding Diamond Clarity
Understanding Diamond Carat Weight
History of the Diamond as the April Birthstone
The History of the Diamond as an Engagement Ring
Buying Diamonds
The Perfect Diamond Engagement Ring
The Perfect Proposal
Gems and Jewelry
Birthstones
January Birthstone
Garnet Overview
Garnet History
How to Buy Garnet
February Birthstone
Amethyst Overview
Amethyst Gemstone History
How to Buy Amethyst
March Birthstones
Aquamarine Overview
Aquamarine History
How to Buy Aquamarine Gems
Bloodstone Gem Overview
History of Bloodstone
How to Buy Bloodstone
April Birthstone
Diamond Overview
Diamond History
How to Buy Diamond Gemstones
May Birthstone
Emerald Overview
History of Emerald
How to Buy Emerald Gemstones
June Birthstones
Pearl Overview
The History of Pearls
How to Buy Pearls
Alexandrite Overview
History of Alexandrite
How to Buy Alexandrite
Moonstone Overview
History of Moonstone
How to Buy Moonstone
July Birthstone
Ruby Overview
History of Rubies
How to Buy Ruby Gemstones
August Birthstones
Peridot Overview
Peridot History
How to Buy Peridot
Sardonyx Gemstone Overview
History of Sardonyx
How to Buy Sardonyx
Spinel Gemstone Overview
History of Spinel
How to Buy Spinel Gemstones
September Birthstone
Sapphire Overview
Sapphire History
How to Buy Sapphire
October Birthstones
Opal Overview
Opal History
How to Buy Opal
Tourmaline Overview
Tourmaline History
How to Buy Tourmaline
November Birthstones
Topaz Overview
Topaz History
How to Buy Topaz Jewelry
Citrine Birthstone Overview
Citrine Gemstone History
How to Buy Citrine Jewelry
December Birthstones
Tanzanite Gemstone Overview
Tanzanite History
How to Buy Tanzanite
Zircon Birthstone Overview
History of Zircon Jewelry
How to Buy Zircon
Turquoise Stone Overview
History of Turquoise Gemstones
How to Buy Turquoise Stones
Birthstones in Folklore
Precious Metal Jewelry
Trending Now
Jewelry and Diamond Appraisals
Jewelry and Diamond Insurance
Moissanite
About Pearls
Jewelry Buying Guide
Sell Your Fine Jewelry
Find a Jeweler
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AGS Code of Ethics
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AGS Laboratories
Jewelry Industry
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The Practical Guide to Jewelry Appraising
Advanced Personal Property Appraisal Course (APPA)
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Menu
Diamonds
AGS Diamond Grading System
What Are the 4 Cs of Diamonds?
Understanding Diamond Cut
Understanding Diamond Color
Understanding Diamond Clarity
Understanding Diamond Carat Weight
History of the Diamond as the April Birthstone
The History of the Diamond as an Engagement Ring
Buying Diamonds
The Perfect Diamond Engagement Ring
The Perfect Proposal
Gems and Jewelry
Birthstones
January Birthstone
Garnet Overview
Garnet History
How to Buy Garnet
February Birthstone
Amethyst Overview
Amethyst Gemstone History
How to Buy Amethyst
March Birthstones
Aquamarine Overview
Aquamarine History
How to Buy Aquamarine Gems
Bloodstone Gem Overview
History of Bloodstone
How to Buy Bloodstone
April Birthstone
Diamond Overview
Diamond History
How to Buy Diamond Gemstones
May Birthstone
Emerald Overview
History of Emerald
How to Buy Emerald Gemstones
June Birthstones
Pearl Overview
The History of Pearls
How to Buy Pearls
Alexandrite Overview
History of Alexandrite
How to Buy Alexandrite
Moonstone Overview
History of Moonstone
How to Buy Moonstone
July Birthstone
Ruby Overview
History of Rubies
How to Buy Ruby Gemstones
August Birthstones
Peridot Overview
Peridot History
How to Buy Peridot
Sardonyx Gemstone Overview
History of Sardonyx
How to Buy Sardonyx
Spinel Gemstone Overview
History of Spinel
How to Buy Spinel Gemstones
September Birthstone
Sapphire Overview
Sapphire History
How to Buy Sapphire
October Birthstones
Opal Overview
Opal History
How to Buy Opal
Tourmaline Overview
Tourmaline History
How to Buy Tourmaline
November Birthstones
Topaz Overview
Topaz History
How to Buy Topaz Jewelry
Citrine Birthstone Overview
Citrine Gemstone History
How to Buy Citrine Jewelry
December Birthstones
Tanzanite Gemstone Overview
Tanzanite History
How to Buy Tanzanite
Zircon Birthstone Overview
History of Zircon Jewelry
How to Buy Zircon
Turquoise Stone Overview
History of Turquoise Gemstones
How to Buy Turquoise Stones
Birthstones in Folklore
Precious Metal Jewelry
Trending Now
Jewelry and Diamond Appraisals
Jewelry and Diamond Insurance
Moissanite
About Pearls
Jewelry Buying Guide
Sell Your Fine Jewelry
Find a Jeweler
About AGS
AGS Code of Ethics
Blog
Contact Us
Work with Us
AGS Laboratories
Jewelry Industry
Membership
AGS Retail Firm Membership
Supplier Firm Membership
Sustaining Firm Membership
Emerging Designer Membership
Strategic Partners
AGS Member-Get-a-Member Recruitment
Annual Report
Education & Events
Events
Conclave
Confluence
Events Calendar
The Practical Guide to Jewelry Appraising
Advanced Personal Property Appraisal Course (APPA)
Credentials
American Gem Society Titles & Designations
Accredited Gem Laboratory
Jewelry Industry Links
Calendar
Job Board
Testimonials
News
Home
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Birthstones
Birthstones
January
Garnet
February
Amethyst
March
Aquamarine
Bloodstone
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April
Diamond
May
Emerald
June
Pearl
Alexandrite
Moonstone
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July
Ruby
August
Peridot
Sardonyx
Spinel
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September
Sapphire
October
Opal
Tourmaline
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November
Topaz
Citrine
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December
Tanzanite
Turquoise
Zircon
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