The reference buyback prices mentioned above fluctuate based on timing and market conditions.
Furthermore, prices vary depending on the shape/form of the item. Please contact us by phone for detailed inquiries.
Visit a High-value Purchase Store Otakaraya to Sell and Appraise Your
Gemstones / Jewellery
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Check Estimated Prices for Gemstones & Jewelry
at OTAKARAYA
Would you like to know
the value of your gemstones?
the value of your gemstones?
Free appraisal
by "Otakaraya"
by "Otakaraya"
the high-price
purchase
professionals.
purchase
professionals.
Available 24/7 for free!
Get an appraisal with just one photo!
Consultations are very welcome!
Get an appraisal with just one photo!
Consultations are very welcome!
Exclusive to Customers Who Book via WhatsApp
Your Purchase Price
35% Bonus Special Promotion
Gemstones / Jewellery Reference Buyback Price
Reference Buyback Price Table for
diamond
*Images are for illustrative purposes only.
*The purchase price may vary depending on the condition of the item and whether any accessories are included.
*The reference purchase prices are estimated values based on our auction transaction history and other relevant factors. They do not guarantee the actual purchase price, which will vary depending on exchange rate fluctuations, the condition of the item and market trends.
Reference Buyback Price Table for
emerald
*Images are for illustrative purposes only.
*The purchase price may vary depending on the condition of the item and whether any accessories are included.
*The reference purchase prices are estimated values based on our auction transaction history and other relevant factors. They do not guarantee the actual purchase price, which will vary depending on exchange rate fluctuations, the condition of the item and market trends.
Reference Buyback Price Table for
ruby
*Images are for illustrative purposes only.
*The purchase price may vary depending on the condition of the item and whether any accessories are included.
*The reference purchase prices are estimated values based on our auction transaction history and other relevant factors. They do not guarantee the actual purchase price, which will vary depending on exchange rate fluctuations, the condition of the item and market trends.
Reference Buyback Price Table for
sapphire
*Images are for illustrative purposes only.
*The purchase price may vary depending on the condition of the item and whether any accessories are included.
*The reference purchase prices are estimated values based on our auction transaction history and other relevant factors. They do not guarantee the actual purchase price, which will vary depending on exchange rate fluctuations, the condition of the item and market trends.
The Latest Gemstones / Jewelry Purchase Items
Every day, we purchase numerous Gemstones / Jewelry, and we introduce one carefully selected item daily.
Purchase Date: July 2026
HERMES Chaine d'Ancre
- Gemstone
- diamond
- Condition
- A
- Detail
- Clean
- Store
- Orchard Far East Plaza
Purchase Date: July 2026
K18 Diamond Ring
- Gemstone
- diamond
- Condition
- A
- Detail
- Clean
- Store
- LUCKY PLAZA（Orchard Rd）
Purchase Date: June 2026
GRAFF Diamond Necklacea
- Brand
- diamond
- Condition
- A
- Detail
- Clean
- Store
- Orchard Far East Plaza
Purchase Date: May 2026
Harry Winston Sunflower Necklace
- Brand
- diamond
- Condition
- A
- Detail
- Clean
- Store
- LUCKY PLAZA（Orchard Rd）
Purchase Date: March 2026
BVLGARI Serpenti Viper Necklace Ruby
- Brand
- diamond
- Condition
- A
- Detail
- Clean
- Store
- Orchard Far East Plaza
Purchase Date: March 2026
Chopard Happy Diamonds
- Brand
- diamond
- Condition
- A
- Detail
- Clean
- Store
- Orchard Far East Plaza
Purchase Date: January 2026
Harry Winston Diamond Earring
- Brand
- diamond
- Condition
- A
- Detail
- Clean
- Store
- Orchard Far East Plaza
Purchase Date: December 2025
Harry Winston Diamond Earring
- Brand
- diamond
- Condition
- A
- Detail
- Clean
- Store
- Orchard Far East Plaza
Purchase Date: December 2025
Harry Winston Diamond Necklace
- Brand
- diamond
- Condition
- A
- Detail
- Clean
- Store
- Orchard Far East Plaza
Purchase Date: December 2025
Harry Winston Lotus Cluster Diamond Pendant
- Brand
- diamond
- Condition
- A
- Detail
- Clean
- Store
- Orchard Far East Plaza
Purchase Date: October 2025
BVLGARI Divas' Dream Necklace Malachite
- Brand
- diamond
- Condition
- A
- Detail
- Clean
- Store
- Orchard Far East Plaza
Gemstones / Jewelry Condition Guide
| S Very Clean | A condition with a high rating in factors such as the 4Cs. |
|---|---|
| A Clean | A condition with a high rating in factors such as the 4Cs. |
| B Some signs of use | A condition where inclusions or scratches are visible. |
| C Significant signs of use | A condition where inclusions or scratches are quite noticeable. |
Would you like to know
the value of your gemstones?
the value of your gemstones?
Free appraisal
by "Otakaraya"
by "Otakaraya"
the high-price
purchase
professionals.
purchase
professionals.
Available 24/7 for free!
Get an appraisal with just one photo!
Consultations are very welcome!
Get an appraisal with just one photo!
Consultations are very welcome!
Exclusive to Customers Who Book via WhatsApp
Your Purchase Price
35% Bonus Special Promotion
Visit a Specialized Purchase Store Otakaraya to Sell Your Gemstones / Jewellery
Do you have unused gemstones or jewelry lying dormant? It's a waste to leave them unused just because of reasons like "old design" or "scratches." At "Otakaraya," we offer high-price purchases even for broken jewelry or old designs. We purchase not only diamonds but also color stones like sapphires, rubies, and emeralds. You can also bring in loose stones (gems only), and our professional appraisers will assess their quality and grade. Whether it's a ring that no longer fits, a necklace that's broken, or jewelry that has become dirty over time, we can still make an offer. We will provide an estimate after evaluating the items, so feel free to bring them in. At "Otakaraya," we have specialists in diamond and gemstone purchasing, including a GIA G.G. certified appraiser, so you can bring your items in with confidence. If you want to sell your gemstones or jewelry for the best price, please visit us by all means.
Points for Gemstone and Jewelry Purchase
Gemstones are a limited resource created by nature, and their prices are highly influenced not only by their size and grade but also by factors such as market supply and circulation. As a result, some dealers may try to offer low purchase prices in order to maximize their profits. However, at Otarakaya, we have established stable sales channels, enabling us to buy high and sell high. Even if you were unsatisfied with other dealers' appraisals, we are confident that we can offer you a price that meets your expectations.
About Gemstones / Jewellery Certificates
What Are Grading Reports and Certificates?
When purchasing a gemstone, it may come with a gemological certificate identifying its origin and type based on scientific testing or a grading report indicating its quality and grade. Ideally, these documents should be kept together with the gemstone when selling it, although they are often misplaced or lost over time. Some people assume that gemstones without grading reports receive lower appraisal prices. However, at OTAKARAYA, we are also able to provide competitive appraisal prices for gemstones even without accompanying documentation.
How to Read a Gemstones / Jewellery Grading Report
If you have a grading report, please check the 4C ratings shown in sections ① to ④ of the image — Carat, Cut, Clarity and Color — and compare them with the diamond price chart above to estimate the value of your diamond. For more detailed pricing information or inquiries about our services, please feel free to contact us by phone.
Click the image to enlarge.
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1Cut & Shape
The diamond's external shape and facet arrangement are described.
-
2Weight (Carat)
The weight is evaluated as 1 carat = 0.2g (200mg).
-
3Color Grade
The diamond's color intensity is evaluated using GIA Master Stones (JJA/AGL certified) on a scale from D to Z.
-
4Clarity Grade
The diamond's inclusions—quantity, size, color, and location—are evaluated using grades such as FL, IF, VVS1VVS2, VS1VS2, SI1SI2, and I1I3.
-
5Cut Grade
The cut is evaluated through the GIA Facetware Cut Estimator database and visual assessment with grades ranging from Excellent, Very Good, Good, Fair, to Poor.
-
6Fluorescence
The color and intensity of fluorescence are evaluated using a fluorescence master stone with grades from None, Faint, Medium, Strong, to Very Strong.
What are the 4Cs?
Carat【Carat: Weight】
Carat refers to the weight of a diamond and is expressed as “ct.” In general, larger diamonds are rarer and more valuable. When all other quality factors are equal, diamonds with higher carat weight tend to command higher prices.
Certain carat weights known as “Magic Sizes” are especially popular and tend to command higher prices.
Cut【Cut: Cut Quality】
Cut is the only one of the “4Cs” determined by human craftsmanship. Because the quality of the cut directly affects a diamond’s brilliance, it is considered one of the most important evaluation factors. Cut quality is assessed based on proportions, finish (polish), symmetry and the overall brilliance observed by the human eye. Diamonds are graded on a five-level scale: “Excellent”, “Very Good”, “Good”, “Fair” and “Poor.”
Clarity【Clarity: Purity & Transparency】
Clarity is the standard used to evaluate a diamond’s transparency. A skilled appraiser uses a 10x loupe to carefully inspect the size, position and number of inclusions (internal characteristics) and blemishes (surface flaws) that are naturally present in all diamonds. The fewer the characteristics and the more transparent and clear the stone is, the higher its rarity and value.
Color【Color: Color】
Diamonds are often thought of as completely colorless, but in reality they contain subtle variations in color. In general, the more colorless a diamond is, the higher its value. Diamond color is graded on a 23-level scale, ranging from the highest grade “D” to “Z” as yellow tones become more visible.
Grading reports can be reissued.
Even if you lose your grading report, it can usually be reissued through organisations such as the Central Gem Laboratory (CGL) or the GIA. However, reissuing a grading report may require additional fees of approximately SGD 20–100, as well as time and effort. If the diamond is set in a ring, there is also a risk of damage when removing the stone for inspection. Since grading reports themselves do not directly determine the value of a gemstone, we recommend choosing a trusted appraisal company with strong expertise and reliable evaluation standards.
The staff includes holders of the GG (Graduate Gemologist) qualification.
The G.G. (Graduate Gemologist) qualification awarded by the GIA is internationally recognised as one of the most respected credentials in the field of gemology. Because of this expertise, our appraisers are able to provide accurate and reliable evaluations even without a grading report. If you are unsure about the appraisal price, you are welcome to start with an appraisal only. All appraisals at OTAKARAYA are completely free of charge.
Customers without a certificate of appraisal
It is possible to make a purchase even without a certificate of appraisal. At "Otakaraya," our appraisers, who have completed specialized training, will conduct the evaluation. You can rely on us with confidence.
Even if your jewelry is scratched, missing a grading report, or you’re unsure what type of gemstone it is,
it may still hold value!
OTAKARAYA is actively accepting items for appraisal and purchase!
Items in any condition are welcome.
You can count on OTAKARAYA for a reliable appraisal.
Wondering whether items in poor condition can still be appraised? At OTAKARAYA, we actively appraise and purchase luxury items even if they are damaged or show signs of wear. Whether it’s a broken bag or an older model, your item may still hold significant value. Feel free to start with a free appraisal.
Recent Purchase Examples
We Purchase Items Even in These Conditions
-
Loose gemstones
The gemstone has come loose from its setting.
-
No grading report
The gemstone alone, without a grading report or certificate.
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Unknown gemstone type
Unsure of the cut or gemstone type
-
Cracks or fractures
The gemstone is cracked or fractured.
-
Chipped
The gemstone is chipped due to an impact.
-
Scratches
Scuffed or deeply scratched.
-
Unbranded
Unknown brand
-
Discoloration or stains
Discolored due to age or affected by stubborn stains.
Customer reviews
regarding Jewelry buyback
Introducing feedback from customers who used our service.
-
Jewelry Buyback
#JewelrySold some watches and jewelry. Excellent service and experience!
-
Jewelry Buyback
#JewelryVery efficient and convenient service. I came down to sell my old jewellery. The whole process was very smooth and everything was explained in detail to me clearly
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Jewelry Buyback
#JewelryI got good prices for the old gold jewelry which i brought in for assessment. Recommended
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Jewelry Buyback
#JewelryHad a great experience here. The environment is comfortable, clean, and offers good privacy. The staff explained the entire process clearly and really helped negotiate a fair price for the precious jewelry I brought in. Even though the market value had dropped, he made sure I got a reasonable price, and I left the shop very satisfied. The counter staff are always busy but remain attentive, friendly, and accommodating. Highly recommend!
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Jewelry Buyback
#JewelryHi, I went to the store at lucky plaza to sell my jewellery. The staff who served me was extremely kind and patient! He was meticulous and was able to breakdown the grams and explain clearly the process. He was patient even though it was 45 mins pass his working hours. He deserve a raise! Great service.
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Jewelry Buyback
#JewelryVery friendly and patient staff. I like her service very much. Good value for my used jewellery with gem stone.
-
Jewelry Buyback
#JewelryThank you for going through my appointment with me today! I received fair quotations for the pieces that I wanted to sell. The staff even helped me to ask for a higher price for my old jewellery
-
Jewelry Buyback
#JewelryThey have been most helpful when i needed to sell my jewelry.
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Jewelry Buyback
#JewelryI had a white gold ring with blue sapphire and diamond that I bought 20 years ago in Hong Kong exhibition. I decided to sell it off and found this special shop assistant that I met her the very 1st time.
I am very comfortable with her professional attitude n patience with the evaluation of my ring. Even though I paid a high price when 8 bought it, but I am ok to sell to her as I am happy with her good service 🐕🦺.
Strongly recommend to any potential sellers who want to let go their precious stone or watches with this company. Thanks again for a wonderful job -
Jewelry Buyback
#JewelryIt is not only a shop for business, they understand the value of the brand . Thanks
*
The above reviews are actual Google reviews received at OTAKARAYA stores.
A Message from Our Appraiser
Thank you very much for choosing OTAKARAYA for your gemstone appraisal and purchase service.
We are delighted that we were able to offer a price that met your expectations for an item you have treasured over the years.
Gemstones are more than simple accessories. They are unique treasures formed by the Earth over millions of years, each with its own beauty and rarity. Their value is determined by the internationally recognised standards known as the “4Cs”: Carat, Color, Clarity and Cut.
At OTAKARAYA, our team includes certified gemologists holding the G.G. (Graduate Gemologist) qualification from the Gemological Institute of America (GIA). Drawing on their expertise and carefully monitoring current market conditions, we strive to provide fair and competitive appraisal prices for every gemstone.
Gemstones such as diamonds, rubies, sapphires and emeralds each have their own evaluation standards and internationally recognised gemological laboratories. Grading reports and certificates issued by these organisations serve as important proof of authenticity and can significantly influence a gemstone’s value.
We carefully examine every aspect of your gemstone, including its quality, rarity and condition, in order to provide an appraisal price you can feel confident about. Being able to deliver a satisfying result for our customers is always our greatest motivation.
We will continue working to improve our services while maintaining the trust our customers place in us. In addition to gemstones, we also appraise precious metals, luxury brand items and watches, so please feel free to visit OTAKARAYA whenever you are considering selling your valuables.
Our team remains committed to providing professional service and fair appraisal prices for every item entrusted to us. Thank you once again for choosing OTAKARAYA. We sincerely look forward to serving you again in the future.
Gemstones / Jewelry Appraisals at OTAKARAYA
Hobbies
Travel
Favorite motto
Actions speak louder than words
Favorite brand
Diamonds and Jewelry
Examples of past buyback items
10-carat Diamond
At OTAKARAYA, we assess hundreds of gemstones every day, both large and small. The value of gemstones can fluctuate greatly depending on various factors such as the 4Cs of diamonds, color, shape, weight, and fluorescence. OTAKARAYA holds its own auctions, allowing us to respond quickly and sensitively to daily gemstone demand. Regarding assessments, we have professional staff and specialized tools such as diamond testers, enabling accurate evaluations at our stores worldwide If you're interested in any items, please feel free to use OTAKARAYA's services.
Types of Gems & Jewellery We Can Buy at OTAKARAYA
Search by Gemstone and Colored Stone
Search by Jewelry Brand Name
Browse by Gold & Precious Metal Purchase Items
Would you like to know
the value of your gemstones?
the value of your gemstones?
Free appraisal
by "Otakaraya"
by "Otakaraya"
the high-price
purchase
professionals.
purchase
professionals.
Available 24/7 for free!
Get an appraisal with just one photo!
Consultations are very welcome!
Get an appraisal with just one photo!
Consultations are very welcome!
Exclusive to Customers Who Book via WhatsApp
Your Purchase Price
35% Bonus Special Promotion
Frequently Asked Questions
about Gemstones / Jewellery Purchase
When is the best time to sell diamonds?
The best time to sell diamonds can vary. Sometimes, the right opportunity arises quickly, while at other times, holding onto them for a longer period can increase their value. It is difficult to pinpoint a universally ideal time. If you plan to keep your diamonds for a longer duration before selling, it is essential to store them properly. We recommend using appropriate storage methods and performing regular maintenance to preserve their condition.
Can I sell diamonds without a certificate?
Yes, you can. Our appraisers will evaluate the diamond 4Cs (Carat, Color, Clarity, and Cut) and provide you with a purchase price.
Does the design affect the purchase price?
For gemstone purchases, the grade of the diamond itself is crucial. Even with an older design, Otakaraya ensures a high-value purchase, so you can rest assured.
Does the shape of the diamond affect the purchase price?
Yes, the purchase price varies by shape. The "round brilliant cut" is the most highly valued cut for diamonds. The purchase price also changes depending on the diamond's grade, so feel free to take advantage of our free appraisal service.
Do specialty gemstone purchase shops offer higher prices?
At Otakaraya, we handle a wide range of items, including diamonds, gemstones, jewelry, gold, precious metals, branded items, and watches. This extensive sales network allows us to avoid holding excess inventory, enabling us to offer the highest possible prices for your items.
Can melee diamonds (pavé diamonds) be purchased?
Yes, they can be purchased. Jewelry adorned with melee diamonds (pavé diamonds) may receive a higher appraisal value. However, loose stones may not be eligible for purchase.
