Forever For Love

5 Ct Oval Lab Diamond Three Stone Engagement Ring

Oval three-stone lab diamond ring in solid gold & platinum

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Order today to get by Jul 31 - Aug 2

Returns & exchanges accepted within 14 days

Made-to-order · FREE Insured Worldwide Shipping

Ships from: United Kingdom

IGI/GIA Certified^*
Lifetime Warranty
Secure Checkout

GIA / IGI certification applies only to natural and lab diamonds over 0.7cts.

Custom design

Looking for something different?

Any metal. Any gemstone. Any words inside the band. Tell us what you have in mind - we'll make it real.

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Buy the Oval Diamond Three stone Ring | Custom Gold configured for your order below. This selected configuration shows the metal, gemstone, centre stone carat size and design details that will be handcrafted when you choose your options above.

StyleOval three-stone trilogy
SettingThree-stone trilogy setting
Centre stone shapeOval
Certification IGI / GIA Certified
Global ShippingFree insured express shipping worldwide
AssuranceLifetime Manufacturing Warranty & 14-day return window included

Each piece is handcrafted to order by Forever For Love in the metal, stone and carat size you choose.

View full details

Available to customise

Choose the combination that suits your piece

Your selected options update above with the product price. These are the standard choices available for this design.

Ring size

Pick the centre stone type for your preference.

3 3 1/4 3 1/2 3 3/4 4 4 1/4 4 1/2 4 3/4 5 5 1/4 5 1/2 5 3/4 6 6 1/4 6 1/2 6 3/4 7 7 1/4 7 1/2 7 3/4 8 8 1/4 8 1/2 8 3/4 9 9 1/4 9 1/2 9 3/4 10

Band color

Pick the centre stone type for your preference.

White Rose gold Yellow

Compare available centre stones

Compare the available centre stone options

Every centre-stone option you can choose for this design, side by side. Your selected stone is the one chosen above in the buy zone.

Centre Stone Option	Stone type	Mohs Hardness	Refractive Index	Price Tier	Certification	Best Suited For
Moissanite Brilliant Cut	Moissanite	9.25 / 10	2.65 – 2.69	Accessible	FFL authenticity documentation	Classic brilliant-cut sparkle with strong fire and durability.
Lab Diamond	Lab-grown diamond	10.0 / 10	2.42	Premium	IGI Certified Grading Report	Real diamond optical and physical properties with independent grading.
Natural Diamond	Natural diamond	10.0 / 10	2.42	Premium investment	GIA/IGI Certified Grading Report	Traditional natural diamond origin and heirloom value.

About this design

Common questions

Where can I buy a 5 ct oval three-stone lab diamond engagement ring?

You can buy this oval three-stone trilogy engagement ring directly from Forever For Love. Each ring is handcrafted to order in your selected metal, with free insured worldwide shipping.

Is the centre stone in this ring certified?

Yes — the Lab Diamond option is IGI-certified on all stones. Natural Diamond options come with GIA or IGI certification where available. Moissanite and Diamanite options include the store's authenticity documentation.

Is a three-stone ring good for an engagement?

Absolutely! The three-stone design is a classic choice that symbolises past, present, and future. It offers beautiful balance, versatility in styling, and can accommodate various combinations of centre and side stone shapes and sizes.

How long does it take to receive this ring after ordering?

Each ring is made to order and typically arrives within 8–10 days of purchase. Every order ships with free insured worldwide delivery and 14-day returns.

Does this ring come with a warranty?

Yes — it is covered by our limited lifetime warranty, which includes free professional cleaning and prong tightening for life, plus one free resize within the first year.

Which ring sizes do you offer?

Rings are made in US & Canada sizes — a conversion chart and tips for finding the size you wear are provided on this page.

Quick glance

Customize this handcrafted oval three-stone trilogy from Forever For Love by selecting your preferred precious metal, gemstone, and center stone size above. Complimentary insured worldwide shipping and a lifetime manufacturing warranty are included with every order.

Ring size3 · 3 1/4 · 3 1/2 · 3 3/4 · 4 · 4 1/4 · 4 1/2 · 4 3/4 · 5 · 5 1/4 · 5 1/2 · 5 3/4 · 6 · 6 1/4 · 6 1/2 · 6 3/4 · 7 · 7 1/4 · 7 1/2 · 7 3/4 · 8 · 8 1/4 · 8 1/2 · 8 3/4 · 9 · 9 1/4 · 9 1/2 · 9 3/4 · 10
Band colorWhite · Rose gold · Yellow
WarrantyLifetime
ShippingFree insured worldwide
CertificationIGI/GIA certification applies to diamond options
Center stone shapes
Available for customisation

Looking for one of the shapes below, or something different? We can customise it for you.

Round Oval Pear Marquise Emerald Princess Cushion Radiant Asscher Heart
Customise this design

Certified standards

The 4Cs Diamond Grading Standards

Every diamond selected for our custom rings meets strict expert specifications. Here is how we grade each characteristic.

Excellent to Ideal Cut

The cut determines a diamond's brilliance, fire, and scintillation. It is the most critical factor of the 4Cs.

We craft our rings exclusively with Excellent to Ideal Cut stones. This ensures maximum light refraction, giving the center diamond its characteristic intense sparkle that reflects from across a room.

Proportions: Cut to exact mathematical angles to return maximum light to the eye.
Symmetry: Perfect facets alignment for a balanced, harmonious reflection pattern.
Polish: Smooth mirror-like surface finish preventing any light diffusion.

GIA / IGI Standard

GIA Certificate Natural Diamond

Report: GIA #2486903721

Shape: Round Brilliant

Carat: 1.50 ct

Grading: E / VS1 / Excellent

IGI Certificate Lab Grown Diamond

Report: LG #612479528

Shape: Round Brilliant

Carat: 2.05 ct

Grading: F / VS2 / Ideal

Independent Grading

GIA & IGI Certified Diamonds

Every single diamond center stone we offer is independently graded and certified. Natural diamonds are graded by the Gemological Institute of America (GIA), while our lab-grown diamonds are certified by the International Gemological Institute (IGI).

Verify GIA Report Verify IGI Report

^* GIA / IGI certification applies only to natural and lab diamonds over 0.7cts.

Sizing