Fancy Coloured Natural Diamond Jewelry

Fancy coloured natural diamond jewellery. The rarest diamond category in the world. Yellow, pink, blue, champagne and green earth-mined diamonds in 18K solid gold, each with a GIA coloured diamond grading report.

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Natural fancy coloured diamonds are the rarest category of natural diamond. Pink and blue stones in particular have appreciated historically on the secondary market. Every stone ships with a GIA coloured diamond grading report.

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.