PUREGEM® lab-grown rubies are physically and optically identical to mined rubies — the same corundum crystal structure, the same 9 Mohs hardness, and the same vivid blood red colour that makes fine ruby one of the most sought-after gemstones in the world.
The finest ruby is described by gemologists as a vivid, medium-dark red — and every PUREGEM® ruby is individually selected to meet or exceed that standard. Conflict-free, sustainably created, and available at a fraction of the cost of a natural equivalent. Compare at $20,000 – $100,000+ per carat for a blood red, ECLN natural ruby equivalent.
PUREGEM® lab-grown rubies are made to order in your choice of cut, shape, and carat size. See the Shipping & Delivery tab for completion estimates, or email us for available in-stock sizes.
About This Stone
Every PureGem® ruby shares the same chemical composition, crystal structure, and optical properties as a mined ruby — the only difference is how it was created. Grown in a controlled laboratory environment, each stone tests positive as genuine ruby on all standard gemological instruments and meets the same quality criteria as the world’s finest natural rubies.
Colour
Blood red — the most prized and rare shade in the ruby world. Vivid, consistent, and achieved without the colour variation that makes high-quality natural rubies so difficult to source.
Clarity
VVS to FL. Natural rubies at this clarity grade are extraordinarily rare and command prices most buyers never encounter. Every PureGem® ruby is held to this standard as a baseline.
Hardness
9 Mohs — second only to diamond and moissanite, making it an excellent choice for rings, pendants, and any piece intended for daily wear.
Customization
Available in any cut — round, oval, cushion, emerald, pear, marquise, and more — and in any carat size up to 30 carats. Each stone is hand-cut to your exact specifications and set in your choice of solid 10k, 14k, or 18k gold in yellow, white, or rose, or 950 platinum.
Ethical & Eco-Friendly
No mining, no land disruption, no conflict. PureGem® rubies are sustainably created and conflict-free by design — the same beauty, none of the compromise.













