Section 01
Laboratory-Grown vs.
Mined Diamonds
One of the most common questions we receive. The truth? Both are real diamonds. Laboratory-grown diamonds possess the same chemical composition (pure carbon, cubic crystal structure), the same hardness (10 on the Mohs scale), and the same optical properties as mined diamonds.
The difference is origin. Mined diamonds formed deep within the earth over billions of years. Laboratory-grown diamonds are created using advanced technology that replicates those conditions — in weeks or months rather than millennia.
"Neither is cubic zirconia. Neither is moissanite. Laboratory-grown diamonds are diamonds — evaluated on the same 4C grading scale as mined stones."
Chemical Composition
Identical (Pure Carbon)
Hardness
Identical (10 Mohs)
Brilliance & Sparkle
Identical
IGI / GIA Certification
Both Available
Section 02
CVD vs. HPHT
Chemical Vapor Deposition vs. High Pressure High Temperature
These are the two primary methods used to grow laboratory diamonds. Both produce real diamonds with identical chemical and optical properties. The difference lies in the process.
A diamond grows layer by layer from a carbon-rich gas in a low-pressure environment. CVD is often favored for producing larger diamonds and specialty custom projects. Our 5.81 CT marquise is CVD-grown.
Type IIa CVD diamonds are among the purest diamonds in existence.
A diamond grows under extreme heat and pressure mimicking natural formation deep within the earth. HPHT often produces exceptional color and clarity characteristics.
Neither method is inherently superior — the individual stone is what matters.
At Bella Andrea Diamonds, we evaluate every diamond on its own merits — cut, proportions, optical performance, and overall beauty — not simply by growth method.
Section 03
Diamond Certification
A diamond certificate (also called a grading report) is a document issued by an independent gemological laboratory that objectively grades a diamond's characteristics. It is not a valuation or appraisal — it is a factual record.
The most widely recognized certification laboratory for laboratory-grown diamonds. IGI reports specify carat weight, color, clarity, cut, measurements, and growth method. All Bella Andrea stones carry IGI certification.
The original diamond grading authority and inventor of the 4C system. GIA now issues grading reports for laboratory-grown diamonds and is highly respected for consistent grading standards.
Our commitment: Every stone we deliver includes a full IGI laboratory diamond report. You receive the original certificate with your ring.
Section 04
Diamond Shapes
Shape is one of the most personal decisions in diamond selection. It affects the ring's overall aesthetic, how large the stone appears on the hand, and how light behaves within it.
Round Brilliant
Maximum sparkle. The most mathematically precise cut. 58 facets optimized for light return. The most popular shape worldwide.
Marquise
The longest silhouette of any diamond shape. Creates exceptional finger coverage and visual carat weight. Our specialty.
Oval
The brilliance of a round with an elongated shape that flatters the finger. Large face-up appearance relative to carat weight.
Emerald
Rectangular step-cut facets that create a hall-of-mirrors effect. Prioritizes clarity and presence over sparkle.
Pear
A teardrop silhouette combining round and marquise characteristics. Visually elongating. Elegant on any hand.
Cushion
Soft rounded corners with a vintage aesthetic. Excellent scintillation. Particularly striking in large carat weights.
Section 05
Diamond Quality Factors
The 4Cs — and what actually matters
Cut
The most important factor.
Cut governs how a diamond interacts with light — its brilliance, fire, and scintillation. An excellent-cut stone of modest clarity will outshine a poor-cut stone with flawless clarity every time. We never compromise on cut.
Excellent → Very Good → Good → Fair → Poor
We recommend Excellent cut for all shapes.
Color
Less is more — mostly.
The GIA/IGI color scale runs D (colorless) to Z (light yellow). For most shapes, G–H color appears white to the naked eye and represents excellent value. Fancy shapes like ovals and marquises may face-up whiter than their grade suggests.
D–F: Colorless · G–J: Near Colorless · K+: Faint
We typically recommend D–H for Bella Andrea projects.
Clarity
Eye-clean is the standard.
Clarity refers to the presence of internal (inclusions) and external (blemishes) characteristics. For most clients, VS1–VS2 or SI1 (eye-clean) represents the ideal balance of quality and value. We review every stone under magnification before recommending it.
FL → IF → VVS1 → VVS2 → VS1 → VS2 → SI1 → SI2
Our minimum recommendation: eye-clean VS2 or SI1.
Carat
Weight is not size.
Carat refers to the weight of the diamond, not its dimensions. A well-cut 2 CT round may appear larger than a poorly-cut 2.5 CT. Shape also affects face-up size dramatically — a 3 CT marquise covers significantly more finger than a 3 CT round.
1 carat = 0.2 grams. Face-up size varies significantly by shape.
Bella Andrea specializes in extraordinary large-carat stones.
Section 06
Choosing the Right Center Stone
There is no universally "best" diamond. There's only the diamond that's right for you — based on your priorities, your aesthetic, and what matters most when you look at it.
Our approach: we listen to what you want the diamond to feel like, and then we find stones that deliver that experience within your parameters. We explain the trade-offs clearly, and we never push you toward a specific stone for our own reasons.
Maximum Size
Consider marquise or oval shapes. These offer more face-up area per carat than round brilliants.
Maximum Sparkle
Prioritize cut quality above all else. Round brilliant with Excellent grades across the board.
Vintage Aesthetic
Cushion, emerald, or elongated shapes. Lower color grades can enhance the warm, antique look.
Modern Elegance
Oval, marquise, or elongated cushion. Strong color and clarity with a clean, refined setting.
Best Value
G–H color, VS2–SI1 clarity, Excellent cut. The sweet spot where quality and value intersect.
The Bella Andrea Standard
"The most important characteristic of any diamond is how it makes you feel when you see it."
Certificates tell you what a diamond is. Our consultation helps you discover which diamond is yours.
Schedule a ConsultationEducation Is Just the Beginning.
When you're ready to put this knowledge to work, we're here. Schedule a private consultation and we'll guide you through every decision.
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