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Consultation & Appointments
Visits to our office are by appointment only. Please contact us in advance if you plan to visit.
We are available on weekdays from 9:00 AM to 7:00 PM.
For weekends, we will accommodate your schedule, so feel free to reach out to us.
Jewelry Customization & Custom-made Orders
At Weiss, we offer jewelry customization and custom order services to ensure your satisfaction. Please don’t hesitate to consult us for your needs.
Payment Methods
We accept credit cards, bank transfers, and cash.
Shipping & Returns
If you wish to request a return, please contact us within 7 days of receiving the product.
Please note that we cannot accept returns for custom-made items.
For more details, please check here.
Aftercare Services
Weiss jewelry comes with a lifetime warranty. Each piece is handcrafted by skilled artisans using the highest quality diamonds, reflecting our confidence in the craftsmanship. To ensure you can enjoy your jewelry for years to come, we offer comprehensive aftercare services. For more details, please check here.
A natural diamond weighing 1.002 carats. Certified by CGL, it features D color and VS1 clarity, ensuring confirmed quality.
The marquise shape enhances its elegant beauty, making it perfect for shining on special occasions.
FAQ
I just learned about Weiss. What kind of brand is it?
Weiss has been supplying the highest-quality natural diamonds to jewelry stores across Japan for over 30 years as a wholesaler. We specialize in fancy-shaped and fancy-colored diamonds and take pride in our extensive inventory.
Recently, we have launched a website and other sales platforms to deliver jewelry directly to customers at reasonable prices.
Where is the jewelry made?
All of our jewelry is handcrafted in Japan by our skilled artisans. Each piece is carefully and meticulously created after receiving an order, with great attention to detail and care.
What metals and materials are used in your jewelry?
All of our jewelry is crafted using natural diamonds and high-quality metals. We meticulously select metals such as gold and platinum to ensure durability, beauty and lasting quality in every piece.
Are your products used?
Weiss' products are all original, designed and created by our skilled designers and craftmen.
Can I buy online?
We recommend that you view the product in person and make your purchase only after being fully satisfied. However, if visiting us is difficult, please feel free to contact us.
Can I view your diamonds and jewelry in person?
Certainly! Please visit our store to see the brilliance of our diamonds and the craftsmanship firsthand.
Do I need an appointment to visit your store?
While not mandatory, appointments are recommended for personalized attention. If you wish to come on the same day, please phone us before coming at 03-5818-2950
What payment methods do you accept?
We accept credit cards, bank transfer and cash.
Do you offer custom design consultation in person?
Yes, you can consult with our expert designers to discuss creating your own jewelry design. We don't charge for this service.
Please tell me about your returns/refund policies.
In-store purchases are subject to the same return and exchange policies as online purchases. For more details, please refer to our policy here. Contact us by phone (03-5818-2950) or email (admin@weissdiamonds.com). Our staff will respond with sincere attention.
Colorless (Color D)
D Color is the highest grade given only to diamonds that are completely 'colorless' among color grades. This top-grade is highly rare and valuable.
VS1 - Very Slightly Included
Minor inclusions that range from difficult to somewhat easy to see are visible to a skilled grader using 10x magnification.
Designs for this diamond
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reviews
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Gildo Aleshinsky
July 12th, 2024
★★★★★
We found Weiss on Instagram and followed to their website. We were interested to see a specific item but when we came to their studio we saw such an amazing collection of diamonds that we decided to go with a custom design. Their designer gave us a sketch and we made an amazing pendant! Thank you so much for making a dream come true!
Guy Landau
July 8th, 2024
★★★★★
Excellent service and great price. We've chosen the perfect diamonds from their large inventory to fit our jewelry (ring). Highly recommend, we'll definitely come back.
Trade 303
June 15th 2024
★★★★★
My fiancé and I visited Weiss Co in Japan for an engagement ring on our last day. Adi and his team were incredibly helpful and provided exceptional service, even as their day was ending. We found a perfect ring and plan to return for our wedding bands. The quality and attention to budget were impressive. Thank you, Adi! 5/5 service.