Our Diamonds
Exceptional Diamonds. Chosen With Purpose.
IGI-certified lab-grown diamonds of exceptional quality, chosen with care and crafted to celebrate your forever.
The Isla Bella Diamond Standard
Every diamond we offer meets our uncompromising standards.
IGI Certified
Graded and certified by the International Gemological Institute.
Independently Graded by IGI
The International Gemological Institute is one of the world's most respected diamond grading authorities. Every Isla Bella diamond is sent to IGI before it reaches you, where it's examined under controlled laboratory conditions and graded against the same standards used for the world's most prestigious diamonds.
Your certificate confirms the exact carat weight, colour grade, clarity grade, cut quality, and lab-grown origin of your diamond. It's your assurance that what you see is precisely what you own — verified, traceable, and entirely yours.
Every diamond ships with its IGI report. No exceptions.
D–F Colour
The highest colour range for a bright, icy, and timeless brilliance.
VVS Clarity
Exceptional clarity for a pure, luminous diamond.
Excellent / Ideal Cut
Precision cut for maximum fire, brilliance and light performance.
Lab-Grown, Not Lesser
Our diamonds are lab-grown using advanced technology that replicates the natural diamond-growing process. They are chemically, physically and optically identical to mined diamonds, independently certified by IGI, and carefully selected for remarkable brilliance.
Modern Origin, Independently Verified
Honest Value, Clearly Set Out
We focus on what matters — IGI-certified diamonds held to a single, exacting standard, with no unnecessary markups along the way.
1. Source
Lab-grown diamonds created through advanced modern processes and independently selected for quality.
2. IGI Certificate
Independently graded by IGI for quality and authenticity.
3. Edinburgh Assay
Our metal is hallmarked by Edinburgh Assay Office for purity.
4. You
Exceptional quality delivered directly to you.
Your Diamond, Independently Verified
Every diamond comes with an IGI certificate — your assurance of exact quality, cut and origin.
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Carat Weight
- Colour Grade
- Clarity Grade
- Cut Grade
- Lab-Grown Origin
- IGI Report Number
Find the Shape That Feels Like Her
Each shape has its own character. Explore, learn and find the one that feels right.
Round
Timeless brilliance, classic and loved.
Oval
Elegant and elongating, modern and soft.
Cushion
Romantic and soft, vintage-inspired.
Emerald
Sophisticated and refined, timeless lines.
Princess
Bold, modern and brilliant.
Pear
Unique and graceful, distinctive beauty.
Frequently Asked Questions
Everything you need to know about our diamonds.
Yes. Lab-grown diamonds are chemically, physically and optically identical to mined diamonds. The only difference is origin — they are created in a controlled environment rather than mined from the earth.
IGI (the International Gemological Institute) is one of the world's most respected diamond grading authorities. Every Isla Bella diamond comes with an IGI certificate confirming its carat, colour, clarity, cut and lab-grown origin.
We only offer diamonds in the D–F colour range (colourless to near-colourless) and VVS clarity (very, very slightly included — invisible to the naked eye). Cut is always Excellent or Ideal.
We work directly with our diamond and metal partners — no wholesalers, no showrooms, no retail markups. Your budget goes into the diamond, the setting and the verification, not into overheads.
Yes. Our Ring Builder lets you choose your shape, carat, setting and metal — every combination is verified, certified and hallmarked before it reaches you.
Yes. Every Isla Bella ring is hallmarked by the Edinburgh Assay Office — your guarantee of metal purity, independently verified by one of the UK's four assay offices.
Your Forever Starts Here
Exceptional diamonds. Hallmarked craftsmanship. Timeless love.