Premium jewelry and diamonds, created for unique moments

Discover our exclusive collection of engagement rings, necklaces, and accessories crafted from gold and diamonds, designed for those who appreciate refinement and flawless quality.
View engagement ringsAbout Diastar

About Us

Diastar – Excellence in Diamond Jewelry

For over a decade, we have been creating premium jewelry for clients who appreciate authenticity, craftsmanship, and the brilliance of certified diamonds. Each piece tells a story of timeless elegance.

Authentic Craftsmanship

Each piece of jewelry is handcrafted by experienced artisans using traditional techniques and impeccable finishes. Diamonds are individually selected for cut, color, and clarity.

GIA certification for every stone

Personalized Consultation

We offer detailed guidance for choosing the perfect engagement ring or gift. Our team helps you understand the characteristics of precious stones and find the ideal piece.

Individual appointments in the showroom

Delivery and Trust

All orders are packed in premium boxes and delivered with insurance. Payment is secure, and returns are accepted within 14 days, no questions asked.

Free shipping for orders over 500 lei

Discover Your Collection

Each Diastar piece is crafted to mark unique moments. Choose now the ring, necklace, or set that suits you.

1 CaratGIA certified center diamond
50+hand-set pavé diamonds
14Krose gold for the matching set

Why Diastar?

Every piece of jewelry in our collection is carefully chosen to offer authenticity, brilliance, and a shopping experience without compromise.

01GIA Certified Diamonds

Each precious stone is accompanied by a GIA certificate, guaranteeing ethical provenance, precise cut, and superior quality. We do not work with synthetic or heat-treated diamonds.

02Italian Craftsmanship and Hand Finishes

Our jewelry is made by experienced artisans from workshops in Vicenza and Valenza. Each setting is manually checked for stone security and wearing comfort.

03Real Macro Photos, No Retouching

We publish high-resolution images with details of the cut, inclusions, and brilliance of the diamonds. You can see exactly what you receive, not an idealized representation.

04Personalized Selection Guide

We offer individual consultation for selecting the diamond and setting, either online or in our showroom in Bucharest. We help you choose the right stone for your budget and taste.

05Insured Delivery and 30-Day Return

We ship each order in a secure gift box, with insurance and real-time tracking. If you are not satisfied, you can return the product within 30 days, no questions asked.

06Over 15 Years of Experience in the Romanian Market

Diastar has been active since 2009 and has built a trusted relationship with thousands of clients. Our reviews and recommendations speak to the seriousness and quality of the services offered.

Frequently Asked Questions

Clear answers about our jewelry, delivery, and warranty.

What certificate do I receive with a diamond purchase?
Every diamond over 0.3 carats comes with a GIA or IGI certificate, attesting to the carat, color, clarity, and cut of the stone. For smaller diamonds, we provide an authenticity certificate issued by our laboratory.
How can I find the correct ring size?
We recommend using an existing ring that fits you well and measuring the inner diameter with a caliper. Alternatively, you can order a sizing set that we send to your home for free. If the ring doesn't fit, we will adjust it at no extra cost within 14 days.
What is the delivery time for a custom order?
For in-stock jewelry, delivery takes 2-3 business days via insured courier. Custom orders (engraving, size modifications, or special settings) require between 7 and 14 business days, depending on complexity. You will receive a tracking link after shipment.
What payment options are available?
We accept card payments (Visa, Mastercard, Maestro), bank transfer, and cash on delivery. All transactions are processed through a secure gateway, and your data is encrypted. For orders over 5,000 lei, we offer interest-free installment payments through our banking partners.
Can you repair or resize a piece of jewelry purchased from Diastar?
Yes, we offer free resizing service for rings within the first 30 days of purchase. Subsequent repairs (soldering, stone replacement, refurbishment) are done for a fee, with a transparent estimate before the work. All interventions are carried out in our workshop in Bucharest.
How should I maintain my diamond jewelry?
Clean your jewelry regularly with a mild solution of warm water and neutral soap, using a soft brush. Avoid contact with cosmetics, perfumes, or chlorine. We recommend a professional check-up once a year to verify the settings and brilliance of the stones. We offer free cleaning in our showroom.
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