Natural Diamond
Natural diamond jewellery at Riyanika. Every piece is 18K solid gold, every centre stone is earth-mined, Kimberley Process certified and GIA-graded. Engagement rings, necklaces, earrings, bracelets and rings.
18K 2ct Cushion Cut Natural Diamond Solitaire Engagement Ring
18K 1ct Cushion Cut Natural Diamond Solitaire Engagement Ring
18K 2.42ct Oval Shaped Natural Diamond Solitaire Engagement Ring
18K 2.57ct Oval Shaped Natural Diamond Three Stone Engagement Ring
18K 2ct Marquise Shaped Natural Diamond Solitaire Engagement Ring
18K 1ct Marquise Shaped Natural Diamond Solitaire Engagement Ring
18K 2ct Pear Shaped Natural Diamond Solitaire Engagement Ring
18K 1ct Pear Shaped Natural Diamond Solitaire Engagement Ring
18K 3ct Pear Shaped Natural Diamond Side Stone Engagement Ring
18K 3.19ct Radiant Cut Natural Diamond Side Stone Engagement Ring
18K 3.93ct Emerald Cut Natural Diamond Side Stone Engagement Ring
18K 2.75ct Radiant Cut Natural Diamond Side Stone Engagement Ring
18K 2.33ct Marquise Shaped Natural Diamond Side Stone Engagement Ring
18K 3ct Emerald Cut Natural Diamond Solitaire Engagement Ring
18K 3.04ct Oval Shaped Natural Diamond Solitaire Engagement Ring
18K 2.13ct Emerald Cut Natural Diamond Solitaire Engagement Ring
18K 1.3ct Emerald Cut Natural Diamond Bezel Engagement Ring
18K 2.14ct Oval Shaped Natural Diamond Solitaire Engagement Ring
18K 2.13ct Oval Shaped Natural Diamond Bezel Engagement Ring
18K 1ct Pear Shaped Natural Diamond Halo Solitaire Engagement Ring
18K 1ct Marquise Shaped Natural Diamond Solitaire Half Eternity Engagement Ring
18K 1ct Oval Shaped Natural Diamond Solitaire Engagement Ring
18K 1ct Marquise Shaped Natural Diamond Side Stone Engagement Ring
18K 2ct Marquise Shaped Natural Diamond Side Stone Engagement Ring
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A natural diamond carries the provenance of a mined stone. Every Riyanika natural diamond piece ships with the GIA grading report and, for stones over 0.30 ct, full chain-of-custody documentation back to the mine.
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.