Fancy Coloured Lab Grown Diamond Jewelry
Fancy coloured lab-grown diamond jewellery. Yellow, pink, blue, champagne and green lab-grown diamonds in 18K solid gold. Intense colour at a fraction of the natural-fancy price.
Fancy coloured lab-grown diamonds give you the same intense colour saturation as natural fancies for roughly a tenth of the price. The colour is intrinsic to the diamond's molecular structure and will never fade.
What every Riyanika piece shares
18K solid gold (yellow, white or rose), hand-finished and hallmarked. GIA-certified diamonds with grading reports for every centre stone above 0.30 ct. Lifetime cleaning and prong-check service. 30-day returns on non-bespoke pieces.
Browse by category
Engagement rings, necklaces, earrings, bracelets, rings, tennis bracelets.
Browse by material
Lab-grown diamond jewellery, natural diamond jewellery, fancy coloured diamond jewellery.
What comes with every piece
GIA grading report for the centre stone where applicable, a formal appraisal for insurance on pieces over $1,000, 18K solid gold in yellow, white or rose (hallmarked), and our lifetime cleaning and prong-check service. Every order ships in a signature Riyanika box.
Bespoke
Not seeing the exact combination you want? Every Riyanika piece can be made bespoke at no extra cost on most designs. Start your design here and we will send a CAD render for your approval before any gold is cut.
Frequently Asked Questions
What is Riyanika's signature material?
18K solid gold set with GIA-certified natural or lab-grown diamonds. Every piece hallmarked. We do not sell plated, gold-filled, or vermeil jewellery at any price point.
Is every diamond certified?
Every centre diamond over 0.30 ct is GIA-certified. Smaller accent stones ship with a Riyanika quality certificate confirming the 4Cs and origin.
What's your returns policy?
30-day returns on all non-bespoke pieces. Bespoke and engraved pieces are final sale because they are made specifically for the buyer. First ring resize within 60 days is free.
Do you offer lifetime service?
Yes. Professional cleaning, prong checks and polishing are free for life at Riyanika on every piece we make.
Can I trade in or upgrade my piece later?
Yes. Our lifetime upgrade programme lets you trade in any Riyanika piece and put 100% of its purchase price toward a more expensive one.
Do I need insurance?
Above $1,000, yes. Standard home insurance usually does not fully cover jewellery. Every piece over $1,000 ships with a formal appraisal that your insurer will accept. Jewellers Mutual (US) and T H March (UK) are reliable options.