Gemstones

How Much and What Type of Inclusions does a GRS Certified 4 to 5 carat Unheated & Heated Vivid Blue Royal Blue Sri Lanka Sapphire have? [Video]

In the video above, I compared the prices between one unheated (100% natural) and two heated GRS certified 4 to 5 carat, Vivid ‘Royal Blue’ Sri Lankan Sapphire. All three sapphires are 4 to 5 carat each, are GRS certified, vivid ‘royal blue’ from Sri Lanka.  The cost difference is between unheated stone and two …

How Much and What Type of Inclusions does a GRS Certified 4 to 5 carat Unheated & Heated Vivid Blue Royal Blue Sri Lanka Sapphire have? [Video] Read More »

How much and What Type of Inclusions does a GRS Certified 3-carat Unheated Vivid Red Pigeon Blood Mozambique Ruby have? [Video]

  In this video tutorial, I have tried to explain the method I use to determine “How much does a 3-carat Unheated Vivid Red Mozambique ruby cost? and show the ‘type of inclusions’ a typical unheated Mozambique ruby will have. For reference purposes, I have used two 3-carat rubies. Both these rubies which are 3 …

How much and What Type of Inclusions does a GRS Certified 3-carat Unheated Vivid Red Pigeon Blood Mozambique Ruby have? [Video] Read More »

How do labs or gemologist determine the origin (or provenance) of Rubies, Sapphires & Emeralds?

If you have read my previous blog posts or seen my videos’ regarding what determines the value of gemstones, country of origin is one of the most important criteria.  Certain origin where the gemstone is mined from always commands a higher price due to its history, rarity, and perception they have with traders or gemstone …

How do labs or gemologist determine the origin (or provenance) of Rubies, Sapphires & Emeralds? Read More »

Difference between Synthetics and Natural Ruby, Sapphire, Emerald

How to tell the difference between natural rubies, sapphires, emeralds from synthetics? Lookswise there is no difference between synthetics and natural gemstones. They have the same chemical composition, crystal structure, and properties as natural gemstones. The only way to tell is by looking at internal inclusions or clarity characteristics. The price difference between natural gemstones …

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How does ‘Phenomena Effects’ like Adularescence, Asterism, Chatoyancy, Iridescence, Play of Color, and Color Change affect the value of gemstones?

In our previous blog posts, we have discussed how to determine the value of colored gemstones.  In summary, colored gemstones value affected by six factors. Color Carat Weight Clarity Cut Origin Treatment However, certain gemstones actually exhibit different phenomena effects like Adularescence Asterism Chatoyancy Iridescence Play of Color Color Change So, “How do these gemstones …

How does ‘Phenomena Effects’ like Adularescence, Asterism, Chatoyancy, Iridescence, Play of Color, and Color Change affect the value of gemstones? Read More »

How to buy an opal - white opal diamond ring rose gold ring

Natural Opal buying guide – How to check and understand difference between different opals?

Opal is one of the most popular phenomena gemstones. They display very unique characteristics like ‘play-of-color’ or different background fire colors. They are quite abundant but also rare as well depending on the quality grades. Different quality has different price levels which we will explain below. How to Buy an Opal – Opal Classification In …

Natural Opal buying guide – How to check and understand difference between different opals? Read More »

What lab or certification is the best for checking your expensive ruby, sapphire or emerald?

BEST LAB TO CHECK GEMSTONES What is the best lab to check gemstones? Buying a high quality ruby, sapphire or emerald isn’t cheap, but how do you know the beautiful expensive gemstone you are buying is the quality you are expecting? As I have discussed in our previous blog posts, it is very important to …

What lab or certification is the best for checking your expensive ruby, sapphire or emerald? Read More »