A Diamond’s Origin Does Not Replace Its Quality Grade.

Laboratory-grown diamonds have essentially the same crystal structure and fundamental chemical, physical and optical properties as mined diamonds. Their difference is their formation environment and origin.

CVD (Chemical Vapour Deposition) and HPHT (High Pressure High Temperature) are the two primary methods used to grow diamonds in a laboratory. Both methods can produce laboratory-grown diamonds. Growth method is displayed on the product page only when supported by the grading report or reliable documentation, and is never inferred from appearance.

Laboratory-grown diamonds can differ meaningfully in colour, clarity, cut, carat weight, proportions, polish, symmetry, fluorescence, optical pattern, growth characteristics, post-growth treatment, certificate information, matching quality and setting craftsmanship.

A lower price may reflect many factors. Customers should compare the complete specification rather than looking only at carat weight.

D is positioned at the colourless end of the recognised D-to-Z diamond colour scale. D colour relates to the absence of visible body colour under controlled grading conditions. It does not replace clarity or cut assessment — a D-colour diamond can still differ in clarity, cutting precision and visual performance.

Cutting affects brightness, fire, scintillation, pattern, balance and the diamond’s face-up appearance. Excellent Polish and Excellent Symmetry are important craftsmanship grades, but they do not by themselves guarantee ideal light performance — proportions, table, depth, crown and pavilion angles all matter together.

Hearts and Arrows describes an optical pattern created by highly precise facet alignment in suitable round brilliant diamonds. Hearts are viewed from the pavilion side and arrows from the crown side using an appropriate reflective viewer.

• Mainly relevant to round brilliant diamonds; not automatically applied to oval, pear, emerald or princess.
• Not proof of colour or clarity.
• Displayed only where documented or professionally inspected.

Excellent Polish — evaluates the condition and finishing quality of the diamond’s facet surfaces.

Excellent Symmetry — evaluates the precision and alignment of the diamond’s shape, facets and related features.

Fluorescence — describes the diamond’s reaction to ultraviolet light. Lucky Jewellery may select ‘None’ fluorescence as a specific collection preference, not as a universal rule.

Clarity grading considers internal and surface characteristics under standard magnification. The word ‘flawless’ is only used when the graded result is Flawless or Internally Flawless. A lower clarity grade does not make a diamond defective — it simply describes what standardised inspection revealed.

Lucky Jewellery references the IGI Laboratory-Grown Diamond Report by report number and verification link so customers can independently review shape, measurements, carat weight, colour, clarity, cut, polish, symmetry, fluorescence, growth method (where stated) and any post-growth treatment (where stated). An uploaded report image is not treated as verified until the report number and product are matched internally.

Eligible IGI-reported laboratory-grown diamonds may carry a laser inscription on the girdle relating to the report number and laboratory-grown identification. An inscription alone does not prove the stone matches the report — the inscription should be checked together with the report and the actual diamond.

This comparison describes selection approaches and does not imply that every product outside the Lucky D Signature collection is low quality.

Laboratory-grown diamonds can make larger carat sizes more accessible, but size alone is not our definition of luxury. Lucky Jewellery selects diamonds through colour, clarity, cutting precision, optical performance, finish and documented quality.

Not cheaper standards. A more considered choice.

Natural and laboratory-grown diamonds differ in formation environment, origin disclosure, price structure, supply, rarity context and resale considerations. Their chemical composition and physical and optical properties are essentially the same, and both require professional identification and grading. The suitable choice depends on the customer’s values, budget, desired size, documentation requirements and personal preferences.

You are welcome to request the IGI report, diamond video, Hearts and Arrows image, laser inscription image or a human consultation before making any decision.