Lab-grown diamonds are real diamonds created using advanced technology that replicates the natural diamond-growing process. They offer the same beauty, durability, and brilliance as mined diamonds while providing exceptional value.
Lab-Grown Diamonds vs. Natural Diamonds
Both are real diamonds. The difference is origin: natural diamonds form underground, while lab-grown diamonds are created in a controlled environment.
| Natural Diamonds | Lab-Grown Diamonds | |
|---|---|---|
| Formed within the earth over billions of years | Created in a controlled laboratory environment | |
| Rare and naturally occurring | Readily available | |
| Unique geological origin and natural beauty | Chemically and visually identical to natural diamonds | |
| Timeless value and lasting legacy | Exceptional value | |
| Chosen for rarity, tradition and generational significance | Chosen for value, ethics and modern innovation |
THE JACOB MERCARI STANDARD
More Than a Grading Report
Two diamonds with similar grades can look noticeably different. Our Team will review the details that determine how a diamond actually appears—not simply what is printed on its certificate.
Speak with our Diamond Speacialist
01
Trusted Certification
Eligible centre stones are independently graded by GIA or IGI, with report details and laser inscriptions verified when applicable.
02
Cut and Brilliance
Round diamonds are selected for Excellent or Ideal cut. Fancy shapes are assessed for proportion, outline, bow-tie and light performance.
03
Colour and Clarity
We normally recommend G colour or better and VS2 clarity or better—provided the diamond is genuinely eye-clean.
04
Personal Inspection
We check for distracting inclusions, haze, fluorescence and unwanted colour before recommending a centre stone.
Shop Loose Diamonds by Shape
Explore certified loose diamonds in Canada by shape, including round, oval, emerald, cushion, princess, pear, marquise, and radiant cuts. Not every certified diamond is equally beautiful. Jacob Mercari evaluates proportions, brilliance, inclusions, colour and overall appearance before recommending a centre stone.
Shop Diamonds By Type
Lab-Grown Diamonds
- Larger carat sizes for the same budget
- Ethical and conflict-free sourcing
- Certified quality grading
- Exceptional brilliance and sparkle
Natural Diamonds
Natural diamonds are among the world's most treasured gemstones, formed deep within the earth over billions of years. Their rarity and enduring value make them a timeless choice for engagement rings and heirloom jewellery.
- Unique geological origin
- Exceptional rarity
- Long-standing tradition and symbolism
- Certified quality and authenticity
Loose Diamonds Canada
Looking for a loose diamond in Canada?
Jacob Mercari helps clients source certified natural and lab-grown diamonds for engagement rings, custom jewellery, earrings, pendants, and heirloom pieces.
Tell us your preferred shape, carat weight, colour, clarity, certification, and budget, and our team can help narrow the options so you can compare diamonds with confidence.
Why Choose Jacob Mercari
Certified Diamonds
Every diamond is certified and ethically sourced, ensuring authenticity and quality you can trust.
Private Diamond Guidance in Toronto
Local expert guidance available in Toronto to help you find the perfect piece for your special moment.
Custom Design
Bespoke and custom jewellery design services to bring your unique vision to life with expert craftsmanship.
Insured Shipping
Fully insured shipping on all orders, ensuring your precious jewellery arrives safely and securely.
Frequently Asked Questions About Diamonds
Are lab-grown diamonds real?
Yes. Lab-grown diamonds are real diamonds with the same chemical, physical, and optical properties as mined diamonds. They offer the same brilliance, durability, and beauty as natural diamonds.
What are the 4Cs of diamonds?
The 4Cs are cut, colour, clarity, and carat weight. Cut affects how much a diamond sparkles, colour measures how colourless the diamond appears, clarity refers to natural inclusions or blemishes, and carat weight measures the diamond’s size by weight. Understanding the 4Cs can help you compare diamonds and choose the right option for your jewellery piece.
Are natural diamonds more valuable?
Natural diamonds are rarer due to their geological origin, while lab-grown diamonds generally offer greater size and quality for the same budget.
Can I book a private diamond consultation in Toronto?
Yes. Jacob Mercari offers private consultations by appointment at our Toronto studio. During your consultation, our team can help you compare natural and lab-grown diamonds, understand diamond grading reports, choose a diamond shape, and explore custom engagement ring or fine jewellery options.
Can I choose a diamond online and have it set into a ring?
Yes. You can select a loose diamond online and have it set into an engagement ring using our ring builder online, wedding ring, pendant, earrings, or another custom jewellery piece. Jacob Mercari offers both loose diamonds and custom jewellery services, allowing you to pair your chosen diamond with a setting that fits your style and budget.
What diamond shape looks largest for its carat weight?
Elongated diamond shapes often appear larger than round diamonds of the same carat weight. Oval, pear, marquise, and emerald-cut diamonds can create a larger visual presence because of their length and surface area. The best shape depends on your style, setting, and budget.
Can I purchase a loose diamond?
Yes. Jacob Mercari offers loose natural and lab-grown diamonds for engagement rings and custom jewellery projects.
Do you offer free shipping?
Yes. We offer free insured FedEx shipping across Canada and the USA for all orders over $400. For orders under $400, a flat shipping fee is applied at checkout, which still includes full insurance and tracking to ensure your jewellery arrives safely.
Toronto Studio
27 Queen St East #1004
Toronto, Canada
Mon - Thurs, 9am - 5:30pm
Friday 9am - 4pm
By Appointment Only.
Evenings available upon request.
