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Celeste Jewellery Academy

Use professional knowledge to make jewellery choices with greater confidence.

From diamond parameters and laboratory report checks to bespoke delivery, Celeste Jewellery Academy helps you understand the facts, aesthetics, and standards of trust behind every piece.

Diamond Guide

Diamond 4C basics: reading parameters as aesthetics and choice.

From carat, colour, clarity, and cut, understand how a diamond affects budget, wearability, and the direction of a bespoke piece.

laboratory report Guide

laboratory report verification section: grounding trust in every record.

Understand jewellery certificates, report checks, and delivery acceptance, and judge the gemstone identity, treatment, and match between report and actual stone.

Article 1 · laboratory report verification section

What exactly is a jewellery laboratory report? Why is it neither a “guarantee of authenticity” nor an “valuation laboratory report”?

A jewellery laboratory report is more accurately described as an “identification report” or a “grading report”. It records the laboratory’s professional judgement on the day of testing, based on the sample’s condition at that time, the testing methods, and the laboratory’s standards, covering gemstone identity, weight, measurements, colour, clarity, cut, treatment, origin opinion, and more.

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Article 2 · laboratory report verification section

How do you read GIA, IGI and NGTC diamond certificates? A practical verification workflow

Checking a diamond laboratory report is not just about seeing whether it has a logo, nor is it only about scanning a QR code. A truly reliable process is: use the official channel to search the laboratory report number, verify the laboratory report information against the actual stone parameters, and then confirm that the girdle inscription, weight, dimensions, shape, colour, clarity, cut, fluorescence and clarity plot all match.

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Article 4 · laboratory report verification section

How do you read a coloured gemstone laboratory report? Origin, treatment and colour description are what matter

The most important thing in a coloured gemstone laboratory report is not simply that it exists, but what it actually states. For high-value coloured gemstones, the factors that truly affect value are usually: gemstone identity, natural or synthetic status, treatment, origin opinion, colour description, weight, cut and transparency.

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Natural vs Lab Diamond

Natural diamond vs lab-grown diamond: clarifying origin, value, and choice.

Understand whether lab-grown diamonds are real diamonds, why prices differ, whether they hold value, and how to choose between natural and lab-grown diamonds for an engagement ring.

Ring Size Guide

Ring sizing and wear guide: making the important moment fit just right.

From international ring size conversion, home measurement, and fit preference to proposal sizing and resizing risk, reduce size errors before and after bespoke work.

Article 4 · Ring sizing and wear

What if you do not know your girlfriend’s ring size before proposing? 7 ways not to spoil the surprise

If you do not know your girlfriend’s ring size before proposing, do not guess blindly. The most practical methods are: borrow a ring she wears often to measure the inner diameter, ask a friend or family member to help, observe which finger she wears her rings on, use a try-on game, estimate from photos and reference objects, choose a ring that can be resized, or use a temporary proposal ring to complete the moment.

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Jewellery Care

Jewellery care section: preserving lustre, safety, and story for the long term.

From diamond ring cleaning, 18K gold maintenance, pearl taboos, and emerald care to jewellery storage, understand how different materials should be looked after over time.

Article 2 · Jewellery care section

Will 18K gold fade? Whitening of white gold, darkening of rose gold, and everyday care, explained clearly

18K gold is not plated gold; it is a gold alloy with approximately 75% gold content, and it usually will not “peel” like ordinary plated jewellery. However, 18K gold can still become dull, yellowed, less lustrous, or show local colour changes due to alloy composition, surface plating, sweat, cosmetics, perfume, cleaning agents, chlorine, friction, and oxidation.

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Colored Gemstone Guide

Coloured gemstone academy: value is determined by colour, origin, treatment, and design together.

From ruby, sapphire, and emerald to spinel, tourmaline, and Paraíba tourmaline, understand the selection logic and bespoke suitability of fine coloured gemstones.

Article 1 · Coloured gemstone academy

How to choose a ruby? Colour, origin, treatment, and laboratory report explained clearly

Colour is the most important factor in a ruby. A fine ruby should show a vivid, saturated, bright red, and must not be too dark, too purple, too orange, or greyish. Origin affects market value, but origin is not a guarantee of quality; a dark, poorly cut ruby from a famous origin is not necessarily better value than a non-traditional-origin ruby with excellent colour and a clear laboratory report.

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Article 5 · Coloured gemstone academy

How to choose tourmaline? Colour families, clarity, cut, and everyday wear

The greatest appeal of tourmaline is its rich colour range, from pink, red, and green to blue-green, as well as bi-colour and watermelon tourmaline. Choosing tourmaline is not just about “having many colours”; you must also look at whether the colour is clean, saturated, and bright, whether the cut makes the stone glow, and whether internal inclusions affect beauty and durability.

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Pearl Guide

Pearl academy: start with lustre, then consider nacre, type, and wearing scenario.

From Akoya, South Sea, Tahitian, and freshwater pearls to nacre and lustre, understand why pearls are expensive, whether they suit you, and whether they can be worn long term.

Article 4 · Pearl academy

Are freshwater pearls worth buying? From entry-level to high-quality nucleated freshwater pearls

Freshwater pearls are worth buying, but you need to know how to choose them. Their advantages are rich colour variety, a wide price range, and flexible styling, making them suitable for everyday wear and youthful designs. Freshwater pearls were once often considered inferior to saltwater pearls, but today high-quality freshwater pearls can be exceptionally strong in roundness, lustre, and size.

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Bespoke Guide

Bespoke academy: design the person, the gemstone, and the craftsmanship together.

From the bespoke process, design dialogue, budget allocation, prototype modelling, setting craftsmanship, to delivery acceptance, understand how a piece of bespoke jewellery is professionally brought to life.

Article 1 · Bespoke academy

The complete bespoke jewellery process: from inspiration and stone selection to delivery, what will you experience?

Bespoke jewellery usually includes requirement discussion, budget confirmation, stone selection, design proposal, structure confirmation, prototyping or modelling, production and setting, quality inspection, delivery and aftercare. A truly professional bespoke service does not mean pricing directly from a single image the user sends; it first assesses whether the piece suits the wearer, whether it is suitable for long-term wear, and whether it matches the budget and gemstone conditions.

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Article 2 · Bespoke academy

How do you communicate with a designer for the first bespoke piece of jewellery? A practical way to explain what you like

When speaking with a designer, do not only say things like ‘more sophisticated’, ‘make it look bigger’, or ‘not too ordinary’. These phrases are highly subjective and easily misunderstood. A more effective approach is to provide the wearing occasion, budget range, reference images, what you like, what you dislike, the wearer’s everyday style and actual measurements.

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Article 4 · Bespoke academy

What is jewellery prototyping? What are the differences between CAD, wax models, silver models and hand-built prototypes?

Prototype creation is the key step that turns jewellery design from a flat drawing into a three-dimensional structure. Common methods include CAD modelling, 3D-printed wax, hand-carved wax, silver prototypes, and direct hand fabrication. The purpose of prototyping is not to let the client judge whether it “looks the same”, but to confirm proportions, structure, size, wearing height, and build feasibility.

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Article 5 · Bespoke academy

How should jewellery settings be judged? How do you choose claws, bezel, pavé, and micro-pavé?

The setting style determines the beauty, security, comfort, and after-sales risk of the jewellery. Claw settings show the stone and let in more light; bezel settings are highly protective; pavé and micro-pavé are delicate and luxurious, but they demand more from workmanship and future maintenance. There is no absolutely best setting style, only what suits the gemstone, the design, and the wearing frequency.

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Article 6 · Bespoke academy

How do you inspect bespoke jewellery on delivery? See the laboratory report, size, engraving and after-sales terms at a glance

When bespoke jewellery is delivered, the client should check the physical piece, laboratory report, size, engraving, gemstone security, surface finish, wearing comfort, receipts and after-sales policy. Inspection is not about finding fault; it is about confirming that the piece matches the prior agreement and can be worn safely.

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Bespoke Strategy

Advanced bespoke: clarifying budget, story, centre stone, and legacy.

Build greater confidence in bespoke decisions by exploring why bespoke is expensive, how long it takes, how love stories are translated, why the centre stone comes first, and how heirloom jewellery should be designed.

Flagship Guides

Flagship in-depth guides: getting the gemstone choice, heirloom value, and bespoke process fully clear.

Three long-form guides respectively cover diamond 4C budget allocation, the heirloom value of rubies, and the full bespoke engagement ring process, offering a more complete decision framework.

Need a consultant’s help?

If you are comparing gemstones, certificates, or bespoke options, tell us your budget and wearing scenario first.

Submit bespoke request