Do lab-grown diamonds test as real diamonds?

Yes. Lab-grown diamonds possess the identical chemical, optical, and physical composition (100% pure crystallized carbon) as mined diamonds and test positive on all diamond testers.

Are SAT Jewel diamonds certified by GIA or IGI?

Every solitaire and center stone at SAT Jewel is 100% authenticated and accompanied by an official GIA or IGI gemological certificate verifying cut, color, clarity, and carat weight.

Is shipping insured and free worldwide?

Yes, SAT Jewel provides 100% complimentary, fully insured priority shipping worldwide for every bespoke jewelry piece.

Can I customize the metal and carat size of my ring?

Yes, our studio allows complete personalization across 10K, 14K, 18K Yellow/White/Rose Gold, 950 Platinum, and 925 Silver with customizable diamond carat sizes from 0.50ct to 5.00ct+.

Moissanite vs Diamond Size Chart

Select your desired diamond shape below to explore exact millimeter sizes and carat weight comparisons.

Round Cut Moissanite vs Diamond Size Chart

"When comparing the carat weight of a moissanite gemstone to a diamond of the same size, the moissanite will weigh slightly less. Therefore, we use millimeter (mm) measurements to accurately compare moissanite and diamond sizes to their equivalent carat weights."

Size (mm)	Moissanite Average Weight (ct)	Diamond Equivalent Weight (DEW)

Our Journey & Ethical Promise

At Sat Jewels, we have intentionally dedicated our craftsmanship toward lab-grown diamonds and moissanite. Driven by environmental consciousness and ethical integrity, our focus centers on delivering 100% conflict-free, eco-conscious fine jewelry. We take pride in adopting sustainable practices that protect our planet while actively supporting social causes and community welfare initiatives.

Craftsmanship Standards

To deliver maximum brilliance across various carat weights, our master diamond cutters meticulously examine and cut every individual lab-grown diamond and moissanite stone. By blending traditional lapidary artistry with modern precision, we maximize each gem's internal light performance, ensuring your jewelry radiates incomparable fire and sparkle.

Sustainable & Conflict-Free

In addition to offering a size chart for reference, we take immense pride in stating that our lab-grown diamonds and moissanite are ethical, sustainable, and conflict-free, cultivated without soil erosion or carbon-heavy mining footprints.

Uncompromising Durability & Hardness

Both lab-grown diamonds (10/10 Mohs scale) and moissanite (9.25–9.50 Mohs scale) are exceptionally resilient gemstones crafted for daily elegance and lifetime wear, offering supreme scratch resistance against daily wear.

Have Any Questions?

Why do Moissanite and Lab-Grown Diamonds differ in weight for the same dimensions?

Moissanite and diamonds have distinct physical densities. Moissanite is composed of silicon carbide, making it approximately 10–12% lighter in density than a carbon-based diamond. Consequently, two stones with the exact same millimeter dimensions will vary in carat weight. To maintain clarity for our customers, Sat Jewels lists moissanite sizes by both millimeter measurements and Diamond Equivalent Weight (DEW).

Does Moissanite display a strong rainbow fire effect?

Because moissanite has a higher refractive index than diamond, it naturally disperses brilliant spectral colors. However, at Sat Jewels, our master gem cutters utilize specialized precision-cut techniques designed to minimize excess rainbow fire, giving our moissanite a refined, elegant, and diamond-like luster.

Moissanite vs. Lab-Grown Diamond: Which should I choose?

Both offer exceptional beauty, so the ideal selection depends on your priorities:

Moissanite: Highly durable, budget-friendly, and offers maximum sparkle and brilliance.
Lab-Grown Diamonds: Chemically, physically, and optically identical to mined diamonds, offering timeless prestige, classic luster, and a 10/10 hardness rating.

Are Lab-Grown Diamonds real diamonds?

Yes, absolutely. Lab-grown diamonds possess the exact chemical composition, crystal structure, and optical properties as mined diamonds. The only distinction is their origin—they are cultivated in technologically advanced environments rather than extracted from the earth.

Can I wear a Lab-Grown Diamond as my official birthstone?

Definitely. Since lab-grown diamonds are authentic diamonds, they serve as a perfect April birthstone option. They provide identical optical elegance and physical strength while offering a completely ethical, sustainable choice.