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

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 evaluate color gemstones value base on ‘six dimensional’ criteria – origin, color, carat … Continue reading What lab or certification is the best for checking your expensive ruby, sapphire or emerald?

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How much does it cost to buy a 1 to 3 carat untreated, no oil, 100% natural emerald from Zambia?

Continuing with the series in how much a paticular gemstone should cost, today I will try to tackle another common question I get asked which is – “how much does a no oil, untreated, 100% natural emerald cost? Can you forward me a price list for these type of emeralds from 1 carat to 3 … Continue reading How much does it cost to buy a 1 to 3 carat untreated, no oil, 100% natural emerald from Zambia?

Natural emerald buying & treatment guide – How to buy and tell the difference between 100% natural, no oil, minor, moderate and significant treatment emeralds?

Telling the difference between a natural, no oil emerald from the one which has been “enhanced” with oil or resin or dye is a very important skill any emerald buyer should know before going out there to buy one.   Depending on the level of treatment and/or type of treatment, there are significant different price points … Continue reading Natural emerald buying & treatment guide – How to buy and tell the difference between 100% natural, no oil, minor, moderate and significant treatment emeralds?

Rare 3.02 carats unheated ruby & GIA certified 2.87 carats no oil & untreated emerald!

We have recently acquired two very unique gemstones.  Both are 100% natural and not subject to any treatment by man! The first one is an unheated and no treatment 3.02 carats vivid red ruby from Mozambique.  The stone has been certified by GRS (Gemresearch Swisslab).  Details in how rare this type of ruby is can be read … Continue reading Rare 3.02 carats unheated ruby & GIA certified 2.87 carats no oil & untreated emerald!

Natural ruby buying & treatment guide – How to buy and tell the difference between natural unheated, heated, new glass filled ruby treatment?

Distinguishing between natural no treatment rubies with heated or new treatment rubies is a very important skill every ruby gemstone buyer should learn before venturing out to buy one.   The price between each levels of treatment can range from the exceptionally expensive US$10,000 per carat for unheated natural rubies to US$1 per carat for new … Continue reading Natural ruby buying & treatment guide – How to buy and tell the difference between natural unheated, heated, new glass filled ruby treatment?