


The purchase results of Jewel Café That
set us apart from other stores
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Gem acquisiton > Emerald Acquisitions
We bought Emerald ring 1.09ct PT900
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Gem acquisiton > Sapphire Acquisition
We bought Sapphire ring 1.68ct K18WG
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Gem acquisiton > Sapphire Acquisition
We bought Sapphire necklace 1.36ct K18WG
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Gem acquisiton > Emerald Acquisitions
We bought Emerald earrings 0.82ct PT900
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Gem acquisiton > Emerald Acquisitions
We bought Emerald ring 1.24 ct PT900
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Gem acquisiton > Sapphire Acquisition
We bought Sapphire ring 1.30ct PT900
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Gem acquisiton > Sapphire Acquisition
We bought Sapphire ring 0.66ct K18PG
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Gem acquisiton > Emerald Acquisitions
We bought Emerald ring 0.81ct PT900
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Gem acquisiton > Emerald Acquisitions
We bought Emerald ring PT900
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Gem acquisiton > Sapphire Acquisition
We bought Sapphire ring 1.18ct K18WG
※The photos are only for reference purpose. Value affected by the condition and market price.
※We might be able to purchase gemstones with certificate only.
※Send photos & details to our WhatsApp number before visiting any of our outlet.

Types of gems

Black Opal
Purchase Policy


Mostly female workers


A relaxing interior spaces


Professional assessment


All assessments are free


A lot of good benefits


Customer's Feedback
I bought a black opal necklace.
I was able to purchase gem jewelry that other shops didn't have a price on.
I bought a black opal necklace that my grandmother gave me.
I asked for the purchase of old jewelry.

Frequently Asked Questions
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QWhat is the best time to sell gemstone jewellery??
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AThe value of gemstone jewellery goes up and down every day, but the market for second-hand gemstone jewellery is booming, so this is the best time to sell. In addition, the valuation proposed by Jewel Cafe is not only based on speculation on the purchase price of the gemstone jewelry, but also considers various background factors of the jewelry item, so we can always recycle at a higher price.
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QIs there any additional cost involved in purchasing or assessing gemstone jewellery?
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AOur gemstone jewelry identification service is completely free. Even if you are dissatisfied with the final estimate, we still do not charge any fees. Jewel Cafe is famous for quick store acquisitions, but we also provide free home delivery and on-site acquisition services. Welcome to choose the acquisition method that best suits you.
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QAny tips for increasing your gemstone jewelry acquisition rate??
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AIf you bring gemstone jewelry along with other designer items, this will result in a higher assessed price. Combinations such as "jewelry, boutique bags" or "metals, fine watches, diamonds" are no problem. We will propose a 10–20% bonus for simultaneous identification of a large number of items. For details, please contact the store staff.
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QI have gemstone jewelry that I want to sell. Do I need to make an appointment?
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AThe appraisal of gemstone jewellery does not require an appointment. Welcome to visit anytime! Jewel Cafe's stores are located in prime locations such as MRT stations and department stores, so you can also stop by when shopping. However, when there are many people, you may have to wait for a while, so in order to conduct appraisal and acquisition more smoothly, it is better to make an appointment in advance.
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QWon't jewelry stores offer higher appraisal prices??
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Ait's not true. Only a professional recycling shop like us can offer a higher appraisal price. Jewelry stores only accept trade-in (exchange the value of old jewelry for new jewelry, and recharge if it is not enough), or it is also possible to install the recovered gemstones on another jewelry. On the contrary, Jewel Cafe not only does not reuse the purchased jewelry, but also strives to offer a fairer and more satisfying purchase price.
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QCan jewelry without warranty be authenticated?
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AWe also accept jewelry without a warranty! A warranty can indeed enhance the credibility of the jewelry, but Jewel Cafe is constantly looking for the latest research on gemstone verification and market conditions, so we are confident that we can still provide the jewelry without a warranty. Jewelry offers an appraisal price that will satisfy you.

Black Opal Rankings


characterised to be larger stones. Black opal is a gem that is in high demand because it is popular to the wealthy overseas and is not widely distributed verseas. High price purchase can be expected at our shop.





How to buy gems
- Professional Estimation
- Free Appraisal
- Instant Cash
- Convenience to Visit
Feel free to drop by while shopping and be approached by our friendly staff!

Black Opal purchase
Trivia of Black Opal
About Black Opal purchase
Also, when you change the viewing angle of black opal, another play color appears. The cause of this play color has been scientifically clarified, but it is strange that the power of nature created this. The mere mineral opals, which cannot be called gems, are widely distributed near the surface of the earth, and with the probability of thousands or hundreds of illions of them, nature accidentally created gem opals. Furthermore, the characteristic of black opal, which shows a completely different pattern depending on the viewing angle, has a mysterious beauty not seen in other gemstones.
Black opal contains less water contain than light opal and is less likely to crack, but its hardness is 5 to 6 and it is easily scratched and weak to impacts, so it is important to wear it as not to give any impact. Black opal is especially favored by the Japanese, and it is estimated that until recently more than half of the world's output was imported to Japan. When buying black opal, of course if it is in good condition, but f the product has conditions such as removal of side stones or distortion of the metal is not good, we are actively buying it, so please feel free to make assess once for black opal purchase. We are confident in our Black Opal purchase price.