Fancy Diamond Jewelry
Fancy coloured diamond jewellery from Riyanika. Yellow, pink, blue, champagne and green diamonds, both lab-grown and natural, set in 18K solid gold. The rarest visual category of diamond.
18K 1.66ct Fancy Yellow Radiant Cut Lab Grown Diamond Cocktail Ring
18K 2.02ct Fancy Yellow Cushion Cut Lab Grown Diamond Cocktail Ring
18K 2.42ct Fancy Yellow Cushion Cut Lab Grown Diamond Cocktail Ring
18K 2.13ct Fancy Yellow Cushion Cut Lab Grown Diamond Cocktail Ring
18K 3.19ct Fancy Yellow Princess Cut Lab Grown Diamond Ring
18K 1.31ct Fancy Yellow Cushion Cut Lab Grown Diamond Cocktail Ring
18K 1.11ct Fancy Yellow Asscher Cut Lab Grown Diamond Cocktail Ring
18K 1.03ct Fancy Yellow Cushion Cut Lab Grown Diamond Cocktail Ring
18K 1.54ct Fancy Yellow Radiant Cut Lab Grown Diamond Cocktail Ring
18K 1.5ct Fancy Yellow Radiant Cut Lab Grown Diamond Ring
18K 1.91ct Fancy Yellow Marquise Shaped Lab Grown Diamond Cocktail Ring
18K 2.3ct Emerald Cut Natural Diamond Halo Engagement Ring
18K 4ct Pear Shaped Natural Diamond Halo Engagement Ring
18K 3ct Cushion Cut Natural Diamond Solitaire Engagement Ring
18K 1ct Oval Shaped Natural Diamond Gold1ct Classic Solitaire Engagement Ring
18K 3ct Emerald Cut Natural Diamond Shape Solitaire Engagement Ring
18K 2ct Pear Shaped Natural Diamond Three Stone Engagement Ring
18K 3.25ct Radiant Cut Natural Diamond Solitaire Engagement Ring
18K 1ct Radiant Cut Natural Diamond Solitaire Engagement Ring
18K 2ct Emerald Cut Natural Diamond Solitaire Engagement Ring
18K 3ct Radiant Cut Natural Diamond Three Stone Engagement Ring
18K 2.25ct Princess Cut Natural Diamond Solitaire Engagement Ring
18K 2.01ct Emerald Cut Natural Diamond Solitaire Engagement Ring
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Fancy coloured diamonds carry a different kind of presence. The colour is the point, not the sparkle. Lab-grown fancies give you the same saturation at a fraction of the natural price; natural fancies carry investment-grade rarity.
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.