We have a large library of gemstone articles and reference material, suitable for all levels. Here are links to some of our most popular information pages:
The Basics
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AJS Gems Newsletter
Gemstone Articles
Custom Jewelry
Madeira Citrine
Chrysoprase Gems
Very Rare Grandidierite
Ring Size Chart
Guide to Green Gems
Mozambique Ruby
Iolite Gemstones
Fancy Color Tanzanite
Tourmaline Pricing Guide
Yellow or Golden Beryl
Spinel Gemstone Prices
An Exceptional 2.21 ct Demantoid
Type A Jade from Burma
Canary Yellow Tourmaline
Refractive Index Chart
Thai Gemstones
Rare Gems
Sapphire Rings
Rare Leuco Garnet
Rough and Cut Gemstones
Umbalite Garnet
Raspberry Rhodolite Garnet
Natural Rubellite Tourmaline
A Perfect 4 ct Tsavorite Garnet
Fluorite Gems and Minerals
A Rare Vivid Mandarin Garnet
A Stunning White Sapphire
Danburite Gems
Trillion Cut Gems
Burma Sanctions on Ruby & Jade
Rare Red Imperial Topaz
Tourmaline Gems for Sale
High and Low Zircons
About Pink Sapphire
Blue Apatite
Buying Gems in Thailand
Ametrine from Boliva
Gem Silica Sources
Beryllium Diffusion
Gemstone Treatments
Australian Gems
Rare Gem Prices
Size and Weight
Buying Gems in Bangkok
Fracture-Filled Ruby
Engagement Rings
Precious and Semiprecious
Gemstone Inclusions
Africa Gems
African Amethyst
Opal Care
Cats Eye Gems
Fine Pink Spinel
Madagascar Sapphire
Watermelon Tourmaline
Madeira Citrine
Chrysoprase Gems
Very Rare Grandidierite
Ring Size Chart
Guide to Green Gems
Mozambique Ruby
Iolite Gemstones
Fancy Color Tanzanite
Tourmaline Pricing Guide
Yellow or Golden Beryl
Spinel Gemstone Prices
An Exceptional 2.21 ct Demantoid
Type A Jade from Burma
Canary Yellow Tourmaline
Refractive Index Chart
Thai Gemstones
Rare Gems
Sapphire Rings
Rare Leuco Garnet
Rough and Cut Gemstones
Umbalite Garnet
Raspberry Rhodolite Garnet
Natural Rubellite Tourmaline
A Perfect 4 ct Tsavorite Garnet
Fluorite Gems and Minerals
A Rare Vivid Mandarin Garnet
A Stunning White Sapphire
Danburite Gems
Trillion Cut Gems
Burma Sanctions on Ruby & Jade
Rare Red Imperial Topaz
Tourmaline Gems for Sale
High and Low Zircons
About Pink Sapphire
Blue Apatite
Buying Gems in Thailand
Ametrine from Boliva
Gem Silica Sources
Beryllium Diffusion
Gemstone Treatments
Australian Gems
Rare Gem Prices
Size and Weight
Buying Gems in Bangkok
Fracture-Filled Ruby
Engagement Rings
Precious and Semiprecious
Gemstone Inclusions
Africa Gems
African Amethyst
Opal Care
Cats Eye Gems
Fine Pink Spinel
Madagascar Sapphire
Watermelon Tourmaline
Customer Reviews
Customer for life
UPS just delivered the custom 1.42 ct. Ruby ring. It. Is. Stunning. Simple and elegant, just how I like it. I can’t stop looking at it! I never understood all the hoopla over “pigeons blood” red until now, until I laid eyes on this Ruby. I could not be happier.
Thank you for your patience answering all my questions and thank you for being friendly, honest and reputable. I also appreciate the insanely fast shipping. Your communication throughout the process put me at ease and the quality and workmanship of the ring are top notch. You have a customer for life and I’ll be sure to tell anybody who’ll listen that AJS Gems did me right. This Ruby is definitely the right investment choice and will be in my family for many generations to come. Thank you again!
-- Bryan A., USA, Mar 2021
Absolutely stunning Scapolite
Hello Ron, I have been so busy but everything is finally settling nicely, so I can write a proper message expressing my thanks. I am very grateful to you for your frank assessments, patience, and advice about the [30.98 ct] scapolite. I have seen many cuts for scapolite stones of varying quality, veering between mediocre cuts to precision-brilliance but overly flashy (and not to my liking). I had not found anything that expresses calmness, wisdom and unwavering elegance as I want in a scapolite, until AJS Gems. Love the details, the serenity, the balance, the quiet confidence that is beautifully expressed in the artistry for this custom AJS-cut scapolite gemstone. Absolutely stunning under different lights, because it knows how to shine in a soothing manner without being gaudy or annoying. Looking at it now, after having perused it several times before in different moods, my instincts happily reaffirm my senses that it is even more than what I had expected from the video. I now know how to go forward to set this scapolite, to complement my sunstones plus other jewellery. My deepest thanks for an interesting and engaging buying experience, which has also taught me many important things!
-- AS, Singapore, May 2021
Custom pendant is even prettier in person!
Arrived today [19.67 ct Madeira Citrine and diamond pendant] ....Well Ron its even prettier in person! Thank you again for your kindness and steadfast professionalism. I will be back and checking frequently on your new inventory. My best,
-- AB, USA, May 2021
Incredible Purple Garnet!
"Wow" is all I can say [3.11 ct Royal Purple Garnet]! I have never seen one of these grape garnets in person. It is incredible, Ron! And they're so affordable. Purple gems are really tricky... I don't care for the muted shades of purple you typically find in untreated sapphires and spinels, and I wanted something a bit more high-end than a Uruguayan amethyst. There's not much left in the purple family when you eliminate those choices. So this stone worked out perfectly. Thanks again for your help!
-- AP, USA, Apr 2021
Happy with our Amethyst purchase
Hi Ron, We have received the Amethyst and are happy with our purchase. Prompt and friendly communication throughout the transaction. Kind regards,
-- C&N, New Zealand, Mar 2021
