Engagement rings
Trilogy Engagement Rings
Trilogy engagement rings feature three principal stones and are traditionally associated with the past, present and future. Side stones can be chosen to complement or contrast with the centre diamond, creating anything from a classic to a highly individual design.
- Past, Present and FutureThree diamonds side by side, each one representing a chapter of your story together.
- Perfectly Matched StonesWe balance the side diamonds with your centre stone for colour, clarity and proportion.
- Natural & lab-grown diamonds
- Bespoke & made to order
- Expert guidance in Hatton Garden
Buying advice
Choosing a Trilogy Engagement Ring
Three stones, traditionally for your past, present and future. The balance between the centre and side stones defines the look.
At a glance
- Side stones are usually a third to half the centre size
- Matching shapes look classic; contrasting shapes look modern
- Choose side stones to match the centre colour
- A trilogy covers more of the finger
Balance the Three Stones
In most trilogy rings the centre diamond is the largest, with side stones roughly a third to half its size. Larger side stones give a bolder, more even look; smaller ones keep the attention on the centre. We match the colour and clarity of the side stones to the centre so the ring looks consistent.
Matching or Contrasting Shapes
Three diamonds of the same shape, such as three round stones, give a classic, symmetrical ring. Contrasting shapes, such as an emerald cut with tapered baguettes or an oval with pear side stones, feel more contemporary. Our diamond shapes guide shows how each shape looks.
Wearing a Trilogy Every Day
Three stones cover more of the finger and give the ring real presence. The setting is wider than a solitaire, so consider how a wedding ring will sit beside it. Lower settings catch less on clothing and are easier to wear day to day.
Meet the founder
Meet Francesco, Your Master Jeweller
Every Primo ring begins with a conversation. Francesco, founder of Primo Diamonds, works with you personally, explaining your options in plain English and without pressure.
Whether you're just starting your search or already have a design in mind, he'll help you understand diamonds, settings and budget, then choose or create a ring you'll be proud to propose with.
My goal is simple: to give you honest advice, exceptional value and complete confidence in your decision.
- One-to-one guidance from first idea to finished ring
- Honest advice on natural and lab-grown diamonds
- Help choosing a ring, or designing your own
Bespoke engagement rings
Design Your Dream Ring
Looking for something unique? We create bespoke engagement rings tailored to your style, budget and story, from the first sketch to the finished piece.
- One-to-one design consultation
- Hand-drawn sketches and CAD previews
- Handcrafted in our Hatton Garden workshop
Why Choose Primo Diamonds?
- Certified diamondsGIA & IGI reports
- Made in Hatton GardenHandcrafted to order
- Lifetime manufacturer’s warrantyFree cleaning & aftercare
- 30-day returnsChange your mind, no fuss
Ring Finder
Find Your Perfect Ring
Not sure which style suits her? Answer a few quick questions about style, shape and budget, and our Ring Finder will suggest rings to explore.
- Explore styles, shapes and metals
- Personalised suggestions for your budget
- No sign-up needed to start
Free · Takes about 60 seconds
Free, no-obligation consultation
Book a Personal Consultation
See rings and diamonds side by side at our Hatton Garden showroom. Choose a time that suits you and we'll prepare a selection around your style and budget.
- One-to-One ConsultationRelaxed, no-pressure atmosphere
- Personalised SelectionWe'll show you the best options for your budget
- Expert GuidanceWith over 50 years' experience in Hatton Garden
- Around 45 MinutesBring a partner or family member if you like
You'll receive an instant confirmation by email and WhatsApp. Prefer a form?
Our showroom
Visit Our Hatton Garden Showroom
Experience our rings in person with a calm, one-to-one consultation in the heart of London's jewellery quarter.
Advice
Frequently Asked Questions
A few things couples usually ask before they visit Hatton Garden.
How long does an engagement ring take to make?
Most rings are handcrafted to order in 2–4 weeks. Ready-to-ship designs can arrive within 5 working days.
Are your diamonds certified?
Yes. Every centre stone is independently graded by GIA or IGI, and the certificate is supplied with your ring.
Can I choose lab-grown or natural diamonds?
Absolutely. We offer both — our gemmologists can talk you through the differences in value, sustainability and appearance.
What if I need help choosing a size?
Book an Appointment and we'll guide you discreetly. You also receive one complimentary resize within the first twelve months.