Gem buying guides
Gem Buying Guides
Shop Jyotish gemstones like an expert with our Buying Guides.
Choose a guide below to learn what to look for in each Jyotish gemstone before you buy.
JupiterYellow Sapphire Buying Guide
Look for an unheated, eye-clean stone of 2 carats or more.
Read the guide
SaturnBlue Sapphire Buying Guide
Choose an unheated stone with an open blue that never looks near-black.
Read the guide- Venus
White Sapphire Buying Guide
Colorless and eye-clean, and larger for the budget than a diamond.
Read the guide 
VenusDiamond Buying Guide
We recommend natural diamonds of G color and VS1 clarity or better.
Read the guide- The Sun
Ruby Buying Guide
Avoid heated and glass-filled rubies; around 1 carat is a good start.
Read the guide 
MercuryEmerald Buying Guide
Light oiling is fine. Clarity and a sound stone matter most.
Read the guide- The Moon
Pearl Buying Guide
We use natural, tissue-nucleated and keshi pearls, never bead-nucleated.
Read the guide 
MarsRed Coral Buying Guide
Deep oxblood or tomato red, undyed, 3 to 4 carats or more.
Read the guide- Uparatnas
Secondary Gemstone Buying Guide
A fine uparatna is a better choice than a poor primary gem.
Read the guide
Before you buy
It’s best to buy from a qualified Vedic Gemologist who understands quality criteria and inclusions. The right source will have done most of your homework for you.
Astrological Gem specializes in carrying only the finest quality gems for Jyotish. Our selection is limited for a reason: very few gems possess both the quality we require and the competitive price point we insist on.