FAQs

Discover what sets Saint' Oliveira diamonds apart—where legendary craftsmanship meets uncompromising quality. Explore our most frequently asked questions about diamond sourcing, grading, and care. Our experts share insights on ethical sourcing, appraisals, and the key considerations for selecting a diamond that reflects your unique story and standards of excellence.

At Saint' Oliveira, we are committed to transparency and ethical sourcing. We work closely with trusted manufacturers and suppliers to ensure our diamonds and precious materials are responsibly sourced. For select pieces, we provide detailed documentation and certificates of authenticity that include information about the diamond’s origin and craftsmanship journey. Our goal is to offer clients confidence in the integrity and provenance of every Saint' Oliveira diamond.

If you would like more information about the traceability or sourcing of a specific piece, our Client Services team is always available to assist at info@saintoliveira.com or via WhatsApp at +44 7778 899277.

If you’re interested in discovering what makes Saint' Oliveira diamonds and engagement rings truly exceptional, we invite you to schedule a private consultation with one of our experts. Enjoy a personalised experience—virtually, at your preferred location, or through an exclusive private viewing—where we’ll answer all your questions and present our extraordinary selection of ring styles.

To arrange your personal consultation, simply contact our Client Services team at info@saintoliveira.com or via WhatsApp at +44 7778 899277. We look forward to guiding you on your journey to the perfect ring.

At Saint' Oliveira, we are committed to transparency and ethical sourcing. For select individually registered diamonds, we provide detailed provenance documentation—including information about the diamond’s origin, sourcing, and craftsmanship journey. This information is available with your Certificate of Authenticity and can be requested at the time of purchase or through our Client Services team.

We work exclusively with trusted suppliers and uphold a strict zero-tolerance policy toward conflict diamonds, sourcing only from regions that meet our rigorous ethical standards. If you would like to know more about the provenance of your Saint' Oliveira diamond or require additional documentation, please contact our Client Services team at info@saintoliveira.com or via WhatsApp at +44 7778 899277.

At Saint' Oliveira, “heritage stones” refer to diamonds or gemstones for which full traceability to a specific region or country of origin was not possible at the time of sourcing. While we continuously strive for the highest standards in transparency and ethical sourcing, some stones—particularly those acquired before the adoption of current traceability practices—may not have complete origin documentation.

Nonetheless, we are committed to responsible sourcing for all our gemstones, regardless of when they were acquired. Our ongoing mission is to elevate industry standards and provide our clients with as much information and assurance as possible about the provenance and integrity of every Saint' Oliveira stone.

If you have questions about the origin or sourcing of a specific piece, our Client Services team is always available to assist at info@saintoliveira.com or via WhatsApp at +44 7778 899277.

At Saint' Oliveira, we are committed to upholding the highest standards of human rights, fair and safe labour practices, environmental stewardship, and ethical business conduct throughout our supply chain. Our Supplier Code of Conduct clearly communicates these expectations to all partners, ensuring every creation reflects our values of integrity, responsibility, and excellence.

To support our global community, our Supplier Code of Conduct is available in multiple languages. Please select your preferred language to download:

• English

• العربية (Arabic)

• հայերեն (Armenian)

• Bahasa Indonesia

• 中文 (简体) (Simplified Chinese)

• 中文 (繁體) (Traditional Chinese)

• Čeština (Czech)

• Dansk (Danish)

• Dutch

• Français (French)

• Deutsch (German)

• עִברִית (Hebrew)

• हिंदी (Hindi)

• Italiano (Italian)

• 日本語 (Japanese)

• ខ្មែរ (Khmer)

• 한국어 (Korean)

• Melayu (Malay)

• Português (Portuguese)

• Русский (Russian)

• Español (Spanish)

• ไทย (Thai)

• Türkçe (Turkish)

• Tiếng Việt (Vietnamese)
  

For further details on our expectations and requirements, please refer to our Supplier Code of Conduct Guidance document, also available in several languages.

If you have any questions or require additional guidance, our Client Services team is always available to assist at info@saintoliveira.com or via WhatsApp at +44 7778 899277.

The Saint' Oliveira Certificate of Authenticity is provided with every fine jewellery creation, certifying the authenticity, integrity, and precise grading of your diamond or gemstone. This certificate is your assurance that your piece meets our highest standards of craftsmanship and quality.

Your Certificate is backed by our Lifetime Warranty (terms and conditions apply; bespoke items excluded). This warranty is our enduring promise: if your jewellery ever differs in quality from what is stated on your certificate, we will offer a full refund or provide a replacement of equal or greater quality—ensuring your confidence for a lifetime.

For more details about our Lifetime Warranty or to discuss your Certificate of Authenticity, please contact our Client Services team at info@saintoliveira.com or via WhatsApp at +44 7778 899277.

At Saint' Oliveira, we are deeply committed to ethical sourcing and responsible luxury. We uphold a strict zero-tolerance policy toward conflict diamonds and work exclusively with trusted suppliers who share our values. Our diamonds are sourced only from reputable manufacturers and countries that participate in the Kimberley Process, ensuring that every stone is free from conflict and meets the highest ethical standards.

We continually review our sourcing practices to promote transparency, integrity, and respect for both people and the environment. Our goal is to provide you with complete confidence and peace of mind in every Saint' Oliveira creation.

If you would like to learn more about our approach to ethical sourcing or have specific questions about the provenance of your jewellery, our Client Services team is always available at info@saintoliveira.com or via WhatsApp at +44 7778 899277.

A Saint' Oliveira diamond is defined by uncompromising quality, artistry, and a meticulous focus on the 4Cs: cut, colour, clarity, and carat weight. Among these, we believe cut is the most vital—because it is the cut that unlocks a diamond’s true brilliance, fire, and life. Even the most flawless stone will appear lacklustre if not expertly cut.

At Saint' Oliveira, each diamond is selected and finished by master artisans who uphold the highest standards of craftsmanship. We partner only with the most skilled cutters and polishers, ensuring every facet is perfectly proportioned to reveal maximum beauty and light. This devotion to precision and artistry is what sets a Saint' Oliveira diamond apart.

To explore the 4Cs in detail or to discover our diamond selection, please visit our Guide to Diamonds or contact our Client Services team for personalised advice.

Setting a budget is an important part of choosing your perfect engagement ring. At Saint' Oliveira, we understand that every love story is unique, and we’re delighted to work within your preferred budget—whether you’re seeking something understated or truly extraordinary.

Our Engagement Specialists offer complimentary, confidential consultations to help you explore options that align with your vision and financial considerations. We’ll guide you through diamond choices, ring styles, and bespoke possibilities, ensuring you find a piece that feels right for you.

To arrange your personal consultation or discuss your budget, simply contact our Client Services team at info@saintoliveira.com or via WhatsApp at +44 7778 899277. We’re here to support you at every step of your journey.

Choosing a diamond is a deeply personal journey, and knowledge is key to finding a stone that truly stands apart. At Saint' Oliveira, we believe in empowering you to recognise the difference between an ordinary diamond and an exceptional one.

When selecting your diamond, consider the 4Cs—cut, colour, clarity, and carat weight. Of these, cut is the most crucial, as it determines the brilliance and fire of the stone. Also, pay attention to ethical sourcing, craftsmanship, and the provenance of your diamond, ensuring it aligns with your values and standards of excellence.

Our experts are here to guide you through every detail, sharing insights and advice drawn from years of experience in luxury jewellery. For a more in-depth exploration or personalised guidance, please contact our Client Services team at info@saintoliveira.com or via WhatsApp at +44 7778 899277.