Richard Latsch · The quick guide
Choose a ring
with
confidence
The stone, the setting, and the questions worth asking.
A practical companion for choosing an engagement ring
The quick guide
Twenty-four pages on the stone, the setting, and the questions worth asking. Read it here, or take the PDF with you.
Richard Latsch · The quick guide
The stone, the setting, and the questions worth asking.
A practical companion for choosing an engagement ring
Start here
You do not need to become a gemmologist to choose well. You need a clear brief, a few useful comparisons and a seller who will answer your questions in writing.
Use this guide in order for a first purchase, or open the section you need. Take the last checklists into the shop. Leave room to change your mind after trying rings on.
| Your next decision | Pages |
|---|---|
| Set the budget, timing and brief | 3–4 |
| Choose the stone and diamond quality | 5–8 |
| Compare shapes, settings and metals | 9–14 |
| Understand durability and care | 15–16 |
| Check the stone and place the order | 17–20 |
| Bring the questions and paperwork list | 21–22 |
| Find sources and prepare an enquiry | 23–24 |
I source natural stones, so you should weigh what I say about laboratory-grown diamonds and simulants with that in mind. They are in this guide so you can recognise the choices and ask for clear disclosure. This is a guide to comparing; it is not a valuation or an assessment of a particular ring.
I · Your brief
Start with the total you can spend comfortably. A salary formula cannot tell you what is right for your household. Include the whole ring and the costs around buying it, then compare actual written quotes.
| Budget line | What to establish |
|---|---|
| Centre stone | The individual stone, its report and its price |
| Setting and metal | Design, alloy, workmanship and any side stones |
| Changes and sizing | Included revisions; later resizing charges |
| Delivery and extras | Tax, delivery, engraving and any separate fees; ask whether tax is already in the quoted price |
| Aftercare | Checks, repairs, plating where relevant, and cover |
If two options cost different amounts, ask the jeweller to show you why. Is the difference visible to you? Is it a material preference, a larger stone, better workmanship or a service you value?
You can change the design as well as the stone. Ask for a simpler setting quote before assuming the centre stone must carry every saving. Keep a dated copy of each quote so the comparison stays fair.
Write down: My comfortable total is RM ______. My most important feature is ______. I am willing to simplify ______.
I · Your brief
Bring a few examples of rings the wearer likes, with a sentence about each. “I like the oval and the plain band” is more useful than a folder of unexplained photographs.
| Question | Note before the consultation |
|---|---|
| Daily life | Work, gloves, sport and times the ring will come off |
| Style | Favourite shapes, metal colours and jewellery already worn |
| Family expectations | Any ceremony, bridal-gold or matching-ring requirements |
| Finger size | How it will be measured; how much uncertainty remains |
| Wedding band | Straight or shaped; bought now or later |
| Timing | Proposal date and the date you need the ring in hand |
Ask about a temporary ring or a loose-stone proposal if those options suit you. Confirm availability rather than assuming the jeweller offers them. If you borrow a ring for sizing, say which finger and hand normally wear it.
Request a schedule that includes design approval, making, inspection and possible adjustment. Specify the date you need delivery.
Ask: “What do we have to settle now, and what can wait?”
II · The stone
Natural diamond, laboratory-grown diamond and diamond simulant describe different choices. Decide what matters to you about origin, appearance and budget, then insist that the description follows through to the paperwork. [2]
| Material | What it means | What to establish |
|---|---|---|
| Natural diamond | Diamond formed in the earth | Natural origin, any treatment, and the individual report |
| Laboratory-grown diamond | The same material as a natural diamond, grown in a machine | Laboratory-grown origin, report and current quote |
| Simulant | Another material that resembles diamond, such as moissanite | The actual material name and its care requirements |
A laboratory-grown diamond is a diamond, and choosing one is a legitimate choice; a simulant is a different material. I source natural stones, so weigh my view accordingly. Either way, make the seller write which of the three you are buying.
Ask for the stone’s dimensions, the report, the finished design and the total price. A large price difference is a reason to examine what is being compared. Avoid relying on an undated percentage saving or a promise about future resale.
A photograph, a sparkle demonstration or a tester’s beep cannot replace an appropriate identification process. The checks on pages 17–18 explain what to ask for before paying.
Ask: “What exactly is this stone, and will you write that on the invoice?”
II · The stone
A coloured centre stone deserves the same careful comparison as a diamond. Look at the actual stone in more than one kind of light and consider whether its care needs fit the wearer. [3–5, 12]
| If you are drawn to… | Explore | Then ask |
|---|---|---|
| A broad choice of colours | Sapphire | What treatment is present? |
| A red centre stone | Ruby or red spinel | How does this particular stone need to be cared for? |
| A green centre stone | Emerald | What filling or other treatment is present? |
| A particular shade | Several stones together | Does the colour still appeal away from the display lights? |
Colour preferences are personal. A species name alone does not tell you the condition, treatment or suitability of an individual stone. Use the durability comparison on page 15 before settling on the design.
II · Diamond quality
The four Cs describe diamond quality. They are a shared vocabulary for comparison, rather than a shopping list on which every grade must be the highest. [1]
| The C | What it describes | Your practical comparison |
|---|---|---|
| Cut | Proportions and facet arrangement affecting appearance | Move the stone and compare its brightness in different lighting |
| Colour | The colour grade on the report | Compare stones together and against the intended metal |
| Clarity | Internal and surface features | Ask which features are visible and whether any affect durability |
| Carat | Weight, rather than diameter | Compare the measurements and appearance on the hand |
GIA gives an overall cut grade to standard round brilliants and not to fancy shapes. Do not read polish and symmetry as a substitute for that grade. Laboratories differ on the other shapes: IGI also offers an overall cut grade for fancy shapes, on its own scale and by its own method, so read the report you are actually holding and compare the stones in person wherever it is silent. [1, 11]
Ask the seller to explain each meaningful price difference using the two actual stones. If a feature matters on paper but you cannot see it, decide whether that distinction is worth paying for to you.
Ask: “Show me the difference I would notice when wearing these.”
II · Diamond quality
Carat tells you what a diamond weighs. Millimetres tell you its dimensions. Shape and proportions affect how those dimensions look from above. Compare both before deciding that a heavier stone is the better choice. [6]
Ask permission to view the stones away from strong display lighting. Keep the conditions consistent: comparing one stone under a spotlight and another in shade tells you little.
III · Shape
Shape is the outline you see across the room. Try a rounded outline, an elongated one and a square or rectangular one before getting lost in small differences between grades. [6]
There is no best outline for every hand. Ask to see different proportions within a shape: a broad oval and a slender oval can feel quite different.
If you like an elongated stone, turn it both ways on the finger. If you prefer a square shape, compare rounded and pointed corners. Notice whether your preference changes when you add a band.
These drawings show outlines only. They do not predict sparkle, size for a given weight, or the appearance of a particular cut.
Choose: My first shape to try is ______. My useful alternative is ______.
III · Shape
Keep the outline you love, then look closely at the details that might make one stone more appealing than another. The setting must suit the actual stone. [6]
| Shape | The visual character | Ask to see |
|---|---|---|
| Round | Circular outline; brilliant facet pattern | Cut grade where applicable; brightness as it moves |
| Oval | An elongated, rounded outline | Any dark bow-tie area across the centre |
| Cushion | Soft corners; square or elongated | Different facet patterns and proportions |
| Emerald | Cut corners; broad step facets | Clarity features and light/dark patterns |
| Pear | One rounded end and one point | Symmetry, bow-tie and protection for the tip |
| Marquise | Long outline with two points | Symmetry, any dark area across the centre, and both tip settings |
| Princess | Square outline with pointed corners | Corner condition and how the corners are held |
| Radiant | Cut corners with brilliant faceting | Evenness of appearance across the face |
The term describes a dark pattern across some elongated cuts. Its appearance varies with the stone and the viewing conditions. Ask to tilt the stone, rather than accepting or rejecting it from one still photograph.
IV · The setting
Start with a small set of designs you can compare on the hand. A setting is both a look and a structure; the jeweller should explain how this version will hold this stone. [7]
| Setting | Why consider it? | The question to ask |
|---|---|---|
| Prong solitaire | An open view of a single centre stone | How are the claws finished and checked? |
| Bezel | A rim of metal around the stone | How much edge is covered, and can it be cleaned underneath? |
| Halo | Small stones framing a centre | What maintenance do the small settings need? |
| Three-stone | A centre with a stone on either side | How do the stones and proportions work together? |
Halos leave me cold, which is a preference and not a fault in the design: what matters is how the small settings are made and how they will be maintained.
Drawings are schematic top views, not construction specifications. Compare finished examples, especially their side profiles and undersides. The catalogue name does not tell you how high the ring sits or how comfortable it feels.
IV · The setting
A ring can look delicate from above and feel quite tall on the hand. Ask to see its height and the space beneath the head before approving the design. Try it with the kind of wedding band you want.
| Detail | What to check on the sample or model |
|---|---|
| Height | Does it suit gloves, pockets and everyday movement? |
| Band clearance | Can the intended wedding band sit where you want it? |
| Underside | Is there access for cleaning beneath the centre stone? |
| Claws and edges | Are they smooth to the touch? |
| Band dimensions | What are the finished width and thickness? |
More clearance often changes the height or structure of the head. That trade-off is bench judgement rather than a laboratory finding, so ask to see it on a finished ring rather than on a drawing: one that looks flush on paper is not enough to establish that two finished rings will fit together.
Ask: “Can I see the side view with the wedding band in place?”
IV · The metal
Choose a metal colour you enjoy wearing, then ask about the exact alloy, finish and maintenance. A label such as “white metal” is not a specification. [8]
| Choice | What you are choosing | Confirm before ordering |
|---|---|---|
| Yellow gold | A yellow-coloured gold alloy | Fineness, finished weight and the colour of a sample |
| Rose gold | A pink-toned gold alloy | Exact alloy, colour and future resizing options |
| White gold | A white-coloured gold alloy; often rhodium plated | Whether plated, alloy ingredients and replating cost |
| Platinum | A naturally white precious metal | Fineness, finished weight and finish maintenance |
| Two-tone | Different colours in the head and band | Which metal is used in each part and how it is joined |
750 indicates 75% gold; Pt950 indicates 95% platinum. Those numbers identify fineness, not the quality of the finished workmanship. Bridal gold here is usually 916 or 999, which is softer than the 750 and platinum a stone-set daily ring is normally made in. The two pieces are doing different jobs; ask the jeweller to explain the alloy proposed for yours. [8, 13]
If the wearer has a known metal sensitivity, tell the jeweller and request the alloy composition. Do not assume a colour or a karat label answers that question.
IV · Fit
Try the engagement ring with a wedding band before committing to the head design. Decide whether you want a close fit, a deliberate gap or a shaped band. [7]
| Option | Try it if… | Check before choosing |
|---|---|---|
| Straight band | You want a simple ring that also works alone | Clearance beneath the engagement-ring head |
| Curved or shaped band | You like a band following the centre setting | Its fit in both directions and appearance worn alone |
| Plain band | You prefer fewer small settings | Profile, width and comfort beside the other ring |
| Stone-set band | You want sparkle across the finger | Rubbing, small-stone maintenance and resizing limits |
Ask for a size assessment with a gauge close to the intended band’s width. Tell the jeweller if the knuckle is larger than the base of the finger or the sample feels different as your hands warm up.
Resizing is a design question as well as a service, and the stone layout can limit it. Have the policy written down before ordering, and ask for the engagement ring and the wedding band to be drawn together at the design stage, even if you buy only one this year. Asking costs nothing then.
Ask: “How far can this ring be resized later, and what would that involve?”
V · Wear
Hardness concerns scratching. Toughness concerns breaking or chipping. A high hardness number is not a promise that a stone will survive every knock. [3–5, 9, 12]
| Stone | Practical starting point | Important qualification |
|---|---|---|
| Diamond | Very resistant to scratching | Can chip; protect vulnerable edges |
| Sapphire or ruby | Strong candidates for a frequently worn ring | Filled or damaged stones need different care |
| Spinel | Durable, with good toughness | Fractures and any filling still matter |
| Emerald | Choose with a specific care plan | Fissures and clarity-enhancing fillings need attention |
| Other gems | Assess the individual species and stone | GIA does not count tanzanite ideal for daily wear; opal and pearl are softer. Ask for written care advice |
Ask which features are vulnerable and how the setting protects them: a bezel cannot make a fragile or treated stone indestructible. For sapphire, ruby, spinel and emerald, request treatment disclosure on the paperwork; “natural” describes origin and does not mean untreated. Treatment is normal in coloured stones and a treated stone is not a lesser one: what matters is that it is named, with what that means for cleaning and repair.
Ask: “What should I avoid doing with this particular stone?”
V · Care
Get cleaning instructions for the finished ring, including any treatments and small stones. Do not choose a cleaning method from the centre stone’s name alone. [3–5, 9]
| Moment | Useful habit |
|---|---|
| Before rough work or sport | Put the ring in a consistent, secure place |
| When taking it off | Use a ring box or pouch; avoid a sink edge |
| When storing it | Keep pieces separate so they do not rub together |
| When it looks dull | Follow the stone-specific cleaning instructions |
| If it catches or rattles | Stop wearing it and arrange an inspection |
| At a service visit | Ask about claws, small stones, wear and fit |
GIA advises against ultrasonic cleaning for emerald; filling and fractures can also make ultrasonic or steam cleaning unsuitable for other stones. Ask the jeweller to confirm a safe method. I set emeralds on two conditions myself, a bezel and no ultrasonic, ever; that is my own rule rather than a laboratory finding. [3–5]
Agree an inspection schedule with the jeweller and find out what is included. A loose stone is a reason to stop and check, rather than to press a claw back or push the stone yourself: pushing sideways on a stone that has already moved is how it finishes coming out. Hold the ring to your ear and shake it gently instead, and take anything that rattles to a bench. Keep service records with the receipt and report.
VI · Verification
Get the laboratory name and report number before you commit. If the laboratory runs its own report-check service, open it yourself rather than relying only on a screenshot from the seller. [10]
| Read | Establish |
|---|---|
| Identity and origin | What material was examined; natural or laboratory-grown |
| Shape and dimensions | Whether they agree with the stone offered |
| Quality information | Which grades the report actually provides |
| Comments | Treatment statements and other relevant observations |
| Number and date | The record you checked and when it was issued |
An online lookup verifies a record, not the stone in front of you. Ask the jeweller to show how the report matches the stone, using appropriate measurements and identifying features. [2, 10]
VI · Verification
Ask to see the identification process while the stone is available for inspection. If it is already mounted, ask what the setting prevents the jeweller from checking. [2, 10]
| Check | What to ask | Its limitation |
|---|---|---|
| Report lookup | Open the issuing lab’s record | Confirms the record, not the physical stone |
| Measurements | Compare the listed dimensions | Mounting can restrict measurement |
| Inscription, if present | View and compare the inscription | An inscription alone is not conclusive proof |
| Features, where documented | Have the jeweller explain a match | Not all reports include a plot; features vary |
| Origin screening | Ask what was tested and the result | An inconclusive result needs further examination |
Agree the process, costs and return deadline for an independent check in writing before paying, and include the small stones in questions about origin and screening. GIA cautions that home tests cannot conclusively identify a natural diamond, so do not turn a breath test or a sparkle impression into a buying decision. [2]
Ask: “If an independent laboratory disagrees with this description, what happens then?”
VII · Ordering
For a custom ring, request a sequence of approvals and ask who is responsible for each stage. Workshops differ: a prototype, a particular process or a certain number of revisions must be agreed, not assumed.
| Stage | Your useful decision |
|---|---|
| Brief | Budget, date, style, finger size and intended band |
| Stone selection | The actual stone and its documentation |
| Design | Top, side and underside views; final dimensions |
| Model, if offered | Height, proportions, clearance and comfort |
| Making and setting | Permission to proceed; what later changes cost |
| Collection | Inspection, fit, documents and care instructions |
Ask which decisions become expensive to change once making begins. Put the final approved design and stone identity alongside the written quote, rather than relying on a chain of informal messages.
VII · Collection
Allow time to inspect the ring in good light and to try it on. Bring the approved design and written order. Ask for an explanation of any difference before accepting the finished piece.
Save photographs of the finished ring, its report number and the purchase documents somewhere you can retrieve them. Record any adjustment agreed at collection, who will do it and when.
If you arrange insurance, check the actual policy wording for the situations you need covered and the evidence required. A grading report and an insurance valuation serve different purposes; ask what documentation the insurer needs.
Before leaving: “Is there anything about wearing or looking after this ring we have not covered?”
Take this into the shop
Use these as conversation prompts. Ask the seller to demonstrate or document the answer where possible. If an answer is unclear, leave the question open until it is explained.
Keep with the receipt
Keep the final quote, order and invoice together. They should describe the ring you agreed to buy and make the service terms easy to find. Where a detail is not applicable, ask the jeweller to say so.
| Confirm | What the documents should identify |
|---|---|
| Centre stone | Material, origin, shape, weight and measurements |
| Report | Issuing laboratory, number and the report supplied |
| Quality and treatment | Grades as reported; treatment information and any uncertainty |
| Side stones | Material and origin; agreed specification |
| Mount | Metal, fineness, finish and agreed dimensions or weight |
| Design | Approved version, finger size, engraving and band fit |
| Price and timing | Total, included charges, payments and delivery date |
| Returns | Eligibility, deadline, costs and independent-check process |
| Resizing | Limits, included work, charges and timing |
| Warranty and care | Coverage, exclusions, inspections and repair arrangements |
The wording should be specific enough that another person could understand the agreement. Keep a copy before paying a deposit, and update it if the design or stone changes.
Notes & sources
Numbers beside the text point here. These sources explain the gemmological principles; the questions and worksheets are editorial guidance. A source cannot assess the individual ring you are offered.
Photography: Arne Bogaerts (cover), Gottapics (sapphire), Olly (bench), via Pexels under the Pexels Licence; illustrative stock, not rings Rich has made or has for sale. The schematic diagrams were drawn for this edition. Richard Latsch Philips · First edition, September 2026.
Your next step
You can begin the conversation before you have chosen a stone or a setting. Bring your priorities, your budget and the open questions.
| Decision | My notes |
|---|---|
| Comfortable total | RM ____________________ |
| Date needed | ____________________ |
| Stone preference | ____________________ |
| Shapes to try | ____________________ |
| Setting and metal | ____________________ |
| Finger size / unknowns | ____________________ |
| Wedding-band plans | ____________________ |
| The thing that matters most | ____________________ |
Send this brief with a few reference pictures and what you like about them, and ask me to confirm the services, schedule and terms for your ring. Write to me through richardlatsch.com/pages/contact, and I will reply personally.
A ring you understand.
A choice that feels like yours.