
Classic solitaire
Keep attention on the marquise silhouette with a simple band and a setting designed to protect both pointed tips.
Create a marquise diamond engagement ring with a distinctive pointed silhouette and a setting designed around your chosen stone. David helps you compare diamonds, discuss your design and work towards a clear quotation.
GIA-certified natural diamonds · IGI-certified lab-grown diamonds · factory-direct pricing
Made to order in South Africa. Diamond availability and appointments confirmed with David.

The marquise combines a curved outline with two pointed ends. Its elongated shape can give generous visible coverage for its carat weight. Compare actual dimensions and proportions as well as the certificate to find the look you prefer.

Keep attention on the marquise silhouette with a simple band and a setting designed to protect both pointed tips.

Turn the diamond across the finger for a contemporary look. David can discuss proportions, comfort and how a wedding band will sit beside it.

Explore a marquise centre with complementary side diamonds, balancing the shape and overall size of the ring.
AI-generated design inspiration, not current stock or previous commissions. Your final setting, metal and specifications are agreed in your quotation.
Compare the diamond face-up and as it moves. A dark area across the centre, often called a bow-tie, can affect its appearance. Assess symmetry, brightness and the shape of both tips. The setting should protect the points; David can discuss suitable claws or bezel designs.
Diagem is a diamond dealer with over 25 years in the trade. David helps you select the diamond, then the ring is designed and made around that stone.
Explore GIA-certified natural diamonds or IGI-certified lab-grown diamonds. Selected physical stones can be viewed by appointment, subject to availability.
Tell David your total ring budget, preferred diamond size and metal. Send an inspiration picture if you have one.
Compare suitable diamonds and discuss the setting. Review a 3D CAD render before you commit, then approve the design and quotation before manufacturing.
Your ring is made around the selected diamond. Confirm the timeline, appointment or delivery arrangements with David.
Their elongated outline can give generous visible coverage for the carat weight. Actual appearance depends on the individual diamond’s dimensions and proportions.
Compare brightness, symmetry and any persistent dark bow-tie across the centre. Discuss a setting that protects the pointed ends.
Yes. Discuss a horizontal design with David so the stone, setting and band proportions suit the way you want to wear the ring.
Yes. Discuss GIA-certified natural diamonds or IGI-certified lab-grown diamonds with David. Suitable stones and viewing arrangements are confirmed individually, subject to availability.
The quotation depends on the diamond, metal, setting and design. Share your total ring budget with David for suitable options and a quotation before manufacturing.
David arranges Johannesburg viewings and Cape Town appointments where suitable. Confirm the selected diamonds and appointment arrangements before travelling.
Recent public Google reviews for Diagem Diamonds. These reviews do not claim to be about this specific page unless the reviewer says so.
“Experience was great. Excellent service. Highly recommended.”
“Great place and great people very helpful and everything is top Quality”
“David is a very brilliant man- all in one. No middle man. #Diagem#Extremely satisfied.”
Reviews sourced from Diagem Diamonds’ verified Google Business Profile. View Diagem reviews on Google Leave a Google review
Share your preferred style, natural or lab-grown choice, total budget and occasion date. David will help you discuss suitable options. Every enquiry is personal; purchases are arranged directly with Diagem.
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Compare marquise rings, emerald-cut rings and oval rings, or explore our bespoke jewellery process and diamond shapes guide.