No. Sparkle depends primarily on cut quality - not whether a diamond is mined or lab-grown. A beautifully cut lab-grown diamond can outshine a poorly cut mined diamond. At Carat Theory, we prioritise cut precision and light performance to maximise brilliance and fire.
For many modern buyers, yes. Luxury is no longer just about rarity - it's about intention.
Lab-grown diamonds allow you to choose a larger, higher-quality diamond for the same budget - without compromising on beauty, durability, or craftsmanship. Many Canadians today prefer lab-grown diamonds because they offer:
We intentionally focus on higher-quality diamonds rather than chasing the lowest possible pricing.
For centre stones around 0.50 ct and above, Carat Theory primarily focuses on:
For select smaller diamonds below 0.50 ct, we maintain premium white colour ranges and high clarity standards, typically within VVS–VS clarity and D–F colour.
We do not use heavily included or lower-colour commercial-grade diamonds commonly found in mass-market jewellery. When comparing pricing across brands, we always recommend comparing clarity, colour, certification standards, gold purity, and craftsmanship quality - not just carat size alone.
Yes. Diamonds at or above approximately 0.50 ct include individual International Gemological Institute (IGI) certification - each stone is graded across the 4Cs and laser-inscribed with its unique IGI report number for full traceability.
For select designs using smaller diamonds below 0.50 ct, Carat Theory provides IGI group or jewellery-level certification depending on the design and stone configuration. All certification details are listed transparently across our collections.
See how we handle certification, shipping, returns, and reviews →
International Gemological Institute (IGI) certification means an independent gemological laboratory has professionally evaluated the diamond's:
This provides transparent quality verification and confidence in what you are purchasing.
We primarily focus on premium CVD (Chemical Vapor Deposition) lab-grown diamonds. CVD diamonds are highly regarded for their ability to produce exceptional clarity and crystal quality when carefully grown and selected. Like natural diamonds, every lab-grown diamond is unique - what matters most is the final quality of the stone, including brilliance, cut precision, clarity, and overall visual performance.
In August 2026, we ran a sourced price comparison across seven selected Canadian and Canada-serving retailers, for one identical specification: round, lab-grown, finished stud earring pairs at approximately 1.00 CTW total weight. Every price, source, and observation date is published.
This describes that seven-retailer sample on the date it was observed - it is not a claim about the Canadian market as a whole, and prices change over time.
See the full Price Bridge comparison → · Read our stud buying guide →
Yes. Our jewellery is crafted using solid 14K gold - not gold-plated base metals. Pieces are hallmarked according to applicable standards. Available finishes include:
Traditional jewellery retail often includes multiple layers of markup across mining, wholesalers, distributors, and retail storefronts.
Carat Theory operates with a direct-to-you model focused on:
This allows us to offer exceptional materials and craftsmanship without traditional luxury markups.
Lab-grown diamonds avoid many of the supply-chain costs and scarcity pricing associated with mined diamonds. The result is exceptional quality and larger carat sizes at a more thoughtful price point - allowing you to choose luxury that feels both beautiful and intentional.
Diamond pricing can vary significantly based on cut quality, clarity, colour, certification, gold weight, craftsmanship, and overall stone quality.
Some retailers reduce pricing by using lower colour grades, more visible inclusions, lighter gold weight, or non-certified stones.
At Carat Theory, our goal is not to offer the cheapest jewellery - it's to create exceptional fine jewellery with uncompromising quality standards and transparent pricing.
We ship across Canada and to the United States using secure, tracked delivery services.
Standard shipping is complimentary on every Canadian order and typically takes 3–5 business days after dispatch. US orders ship for a flat US$25 and typically arrive in about 3–5 business days, with duties and import taxes included. Express shipping is available at checkout in Canada for a charge and typically arrives in about 2 business days. Estimated delivery windows are also displayed on individual product pages whenever applicable.
See our Shipping & Returns page for full details.
Nothing is owed on delivery. Where duties apply, they are settled at checkout:
Applicable taxes are calculated transparently during checkout.
Carat Theory is a Canadian jewellery brand based in Calgary, focused on modern fine jewellery and premium lab-grown diamonds.
Every piece ships in our signature packaging using tracked delivery with signature required, so it is handed to you rather than left at your door - included with every order at no additional charge.
Yes. As soon as your order is dispatched, you will receive an email with your tracking number.
We offer a 14-day return policy on unworn items in original condition and packaging. Contact us within 14 days of delivery to start the process.
Custom, engraved, and Ring Builder creations are final sale.
Every Carat Theory piece comes with a 1-year craftsmanship warranty covering setting integrity, prong maintenance, and structural defects under normal wear. This does not cover accidental damage, loss, or theft - we recommend insuring high-value pieces through your home or specialist jewellery insurer.
Surat is widely recognised as one of the world's most important diamond craftsmanship hubs. For decades, many of the world's finest diamonds - including stones used by global luxury brands - have passed through Surat's cutting and polishing expertise. Its concentration of craftsmanship, engineering, and diamond innovation has also made it a global leader in lab-grown diamond production. At Carat Theory, we work with experienced manufacturing partners connected to this ecosystem while maintaining Canadian quality standards and customer experience expectations.
Many customers choose lab-grown diamonds as a modern alternative to traditional mining. Lab-grown diamonds are appreciated for their traceability, innovation, and more contemporary sourcing approach - free from the habitat destruction and conflict origins associated with some mined diamonds.
Lab-grown diamonds generally require less land disruption than mined diamonds. However, sustainability can vary depending on production methods and energy sourcing. We believe transparency matters more than exaggerated marketing claims. That's why we focus on responsible sourcing, thoughtful craftsmanship, and jewellery designed to be worn and loved for years to come.
Yes - that's a core part of our philosophy. Fine jewellery shouldn't spend most of its life locked away for "special occasions," and solid gold and diamond jewellery are designed for long-term wear. That said, we recommend removing fine jewellery during:
This helps preserve the finish and setting integrity over time.
Store each piece separately in its pouch or box to prevent scratching. For regular cleaning:
Avoid harsh household cleaners, chlorine, or ultrasonic cleaners unless specifically approved for your piece.
Yes. Our Ring Builder lets you design a bespoke ring by choosing your diamond shape, carat weight, metal type (yellow, white, or rose gold), and setting style - with a live preview as you configure.
For other bespoke requests, contact us directly and our team will work with you one-on-one.
Many designs are available in multiple carat sizes, gold colours, and diamond shapes. Customisation availability is listed on individual product pages whenever applicable.
The most accurate method is to visit a local jeweller for a professional sizing. At home, you can measure the inner diameter of a ring that fits well and compare it to a standard ring size chart. When in doubt, size up - rings can always be resized down more easily. Our team is happy to guide you.