Welcome to the Staff Portal
Life's great moments are worth celebrating with timeless gifts. This portal helps you serve our guests with expertise, warmth, and authenticity.
New Employee Training Guide
Work through each module in order. Our training reflects our brand values: Warm, Expert, and Authentic.
"We believe life's great moments are worth celebrating with timeless gifts."
We exist to provide our community with high-quality jewelry and jewelry services in a warm and welcoming environment. Every guest who walks through our door is there to mark a moment that matters — and it is our privilege to be part of it.
Koser Jewelers of Lancaster was founded by Mr. Koser in 1952. The store was purchased by Randy Wolgemuth in 1988. In 2022, his son-in-law Tom joined the team as store manager, continuing a tradition built on more than seven decades of community trust.
From our founding until today, we are focused on providing the best possible service to our customers. Koser Jewelers has been — and always will be — a community-grounded, community-focused, community-driven jeweler.
Everything we say and do — from greeting a guest to writing a product description — reflects three defining traits:
We are approachable. We seek to establish rapport with prospective guests and be a trusted friend to our current community.
We are dedicated to our craft and knowledgeable about our subject. Our guests can trust our recommendations.
We take our responsibility as consultants seriously. Guests know that we tell the truth and have their best interest at heart.
| Voice | Do | Don't |
|---|---|---|
| Warm | Speak directly to the guest · Use inviting language · Keep a personal and encouraging tone | Seem aloof or superior · Be judgmental or smug · Conflate "warm" with "low-ticket" |
| Expert | Speak with clarity and authority · Selectively educate (not too much) · Reference positive guest experiences | Use an informal tone · Promote non-fine jewelry · Write vague content |
| Authentic | Speak honestly and directly · Own mistakes and show how you're addressing them | Use marketing jargon · Come across as "salesy" · Oversell |
The S.A.L.E.S. process is Koser Jewelers' structured approach to every guest interaction. It is guest-oriented, not product-oriented — your goal is always to understand the guest first and present solutions second.
"The guest buys you first, then the store, and then the product."
Welcome guests in a fun and engaging way. Never open with "May I help you?" — it invites an instant "No." Instead, come out from behind the display case, make eye contact, and use an open-ended or observational opener.
| Step | Do | Avoid |
|---|---|---|
| Acknowledge | Come from behind the case, greet warmly, make guest comfortable | Staying behind the case (creates a barrier); frowning; looking bored |
| Introduce yourself | "Welcome to Koser Jewelers, I'm [name] — and your name is?" Offer a handshake, use their name immediately | Not introducing yourself (limits personal connection) |
| Open the door | "I see you're looking at our watch collection — tell me, what features are you looking for?" or a genuine compliment to open conversation | "May I help you?" — potentially leads to instant rejection |
Build a relationship. Listen more than you talk — the guest will tell you exactly what to show them. Capture their "power phrases" and adjectives so you can use their own words when presenting product.
Key takeaways: Listen for occasion, product type, recipient, and potential add-ons. Do not move to presenting product before you have confidence you understand their needs.
Present with the Feature → Function → Benefit method. Always go back to the guest's story and their power phrases.
| Feature | Function | Benefit |
|---|---|---|
| What is it? (Answers "What?") | Why does it matter? (Answers "Why?") | So what? (Tie back to guest's words) |
| "This diamond is a single solitaire with a platinum band" | "So she can enjoy the neutral color of the metal" | "Since she's not a flashy person (her words), she'll love the simplicity and timelessness" |
Recognize concerns and empathize immediately. Address objections early — don't wait until the close. The first step is always to listen, then clarify, then offer the solution.
Key: Reiterate value before moving to any discretionary discount. Never treat objections as unjustified. Never say "As I said..." or "As you know..." — these put guests on the defensive.
The three main types of objections: Price, Need (not sure it's right), and Urgency (I'll come back). Price is often a signal of other concerns — probe first.
When closing: summarize features and benefits, then ask for the sale — and stop talking. Guests rarely ask to proceed on their own.
"Did you want the earrings to match, or just the necklace today?"
"I'll just need to know how you'd like to pay today." / "Would you like to use our 6-month zero interest financing through Wells Fargo?"
"Shall we go ahead then?" — ask for the sale directly.
Start filling out guest information in EDGE while they decide — this signals momentum and commitment.
After the sale: thank the guest, explain next steps, and always collect contact information for clienteling. Every guest is a lifetime relationship, not a single transaction.
Gold is measured in karats (K), with 24K being the purest at 99.9% gold. The stamp indicates the percentage of gold in the alloy. The U.S. minimum to be sold as "gold" is 10K.
| Karat | Stamp | Gold % | Notes |
|---|---|---|---|
| 24K | .999 / 999 | 99.9% | Purest gold; too soft for most jewelry |
| 22K | .916 / 916 | 91.6% | Common in Asia & Middle East |
| 18K | .750 / 750 | 75% | Rich color; preferred for fine jewelry |
| 14K | .585 / 583 / 14KP | 58.3% | Most common in US; great balance of value & durability |
| 10K | .417 | 41.7% | Most durable; US minimum for "gold" |
Note: KP (Karat Plumb) such as 14KP means the gold content is exactly that karat, not merely "at least."
Rhodium is a rare platinum-family metal that is too brittle to use on its own. It is used exclusively as a plating metal. Key facts for guests:
Cut — the most important C. 60% of a diamond's value is based on cut quality. Cut determines how the diamond captures and returns light.
Color — graded D (colorless) to Z (light yellow/brown). Most U.S. sales are G–L. Fancy colored diamonds (yellow, blue, pink) are graded by hue, tone, and saturation.
Clarity — blemishes are surface irregularities; inclusions are internal. Graded FL, IF, VVS1/2, VS1/2, SI1/2, I1/2/3. Only 2% of gem-quality diamonds are Flawless. SI1 is often eye-clean — great value.
Carat — 1 carat = 1/5 gram = 100 points. A 0.75ct diamond = 75 points. Weight fractions: 1/4 ct refers to 0.23–0.29ct range. Always clarify center stone vs. total diamond weight (TDW) for the guest.
| Shape | Depth % | Table % | L/W Ratio |
|---|---|---|---|
| Round Brilliant | 59–62.6% | 54–57% | 1.00–1.03 |
| Princess | 68–74% | 69–75% | 1.00–1.04 |
| Oval | <63% | 53–63% | 1.30–1.50 |
| Cushion | 61–68% | <68% | 1.00–1.08 (sq); 1.15–1.25 (rect) |
| Emerald | 61–68% | 61–69% | 1.30–1.45 |
| Pear | <68% | 53–65% | 1.45–1.75 |
| Marquise | 58–62% | 58–62% | 1.85–2.10 |
| Heart | 56–66% | 56–62% | 1.00 |
| Radiant | <67% | 61–69% | 1.00–1.05 (sq); 1.20–1.50 (rect) |
| Asscher | 61–68% | 61–69% | 1.00–1.05 |
Remember: a guest may value a look (elongated Emerald) more than technical ideals. The guest's priority always outweighs technical specs.
Koser Jewelers takes conflict diamonds seriously. We require vendors to certify that diamonds are from legitimate, conflict-free sources. The Kimberley Process Certification Scheme sets international standards for rough diamond import/export — today 99%+ of the world's diamond supply is certified conflict-free. Our message to guests: "Koser Jewelers does not sell conflict diamonds and our suppliers adhere to the Kimberley Process."
Our most significant category. Always ask about lifestyle — an active guest needs a lower-profile setting. Key elements: center stone, metal type, setting style (solitaire, halo, three-stone, side-stone), and band width. Discuss ring sizing and our resizing policy at point of sale.
Bangles, cuffs, tennis, charm, and link bracelets. Measure the guest's wrist and add 0.5"–0.75" for comfort. For watches and timepieces, refer to the Timepieces module.
"A watch is something someone wears to tell time. A timepiece is something more. It tells a story about its wearer. At Koser Jewelers we are explicitly focused on providing quality timepieces to our guests."
Battery-powered. Vibrates quartz crystal at 32,768 Hz for precision. Very accurate. Battery must be replaced regularly. Lifespan 20–30 years. Relatively affordable.
Rechargeable cell charged via station, cord, or light panels (e.g., Citizen Eco-Drive). Very precise. Prone to user error from lack of charge. Cell may need replacement every 10–15 years.
No electric components. Powered by a wound mainspring via the crown. Requires continuous manual winding. May gain or lose a few seconds per day. Service every 3–8 years.
Same as mechanical but with a rotor (oscillating weight) that continuously winds the timepiece as it is worn. Service every 3–8 years. The choice of true horological enthusiasts.
Never set the date when the time on the timepiece is between 9 p.m. and 2 a.m. The date-changing mechanism is engaged during this window — setting the date then can break the delicate teeth. Always advance past 2 a.m. before setting the date. Also: always rotate the time forward (clockwise) — never backward.
The four greatest threats to mechanical/automatic timepieces: Moisture, Heat, Shock, and Magnetism.
Seiko — Founded 1881, Tokyo. Invented the quartz movement; launched the world's first commercial quartz timepiece in 1969 (Astron). Owned by the Hattori family.
Grand Seiko — Seiko subsidiary since 1960. Features the Spring Drive movement (1999) — a mechanical movement that generates a trickle of electricity for glide-smooth precision. Outstanding finishing and value.
Citizen — Eco-Drive light-powered movement. 5-year manufacturer warranty on most models (2 years on SmartWatches). Excellent everyday value.
Key selling point: buying through Koser (an AR) protects the guest's warranty, ensures resale value, and provides authentic service support from the manufacturer.
We are an intent-based organization. The intent is simple: every guest feels delighted by our service, respected by our professionalism, and valued as a member of our community. You are explicitly empowered to make common-sense decisions that align with this aim. Management will support you as long as the action was taken in good faith with the guest at the center.
Every guest receives a warm greeting within 30 seconds. We call the people we serve guests — intentionally. Avoid "Can I help you?" (invites "No"). Instead use open-ended or observational openers. Introduce yourself, shake hands, and use their name immediately once given.
Key: Come out from behind the display case. Staying behind creates an instant barrier between you and the guest.
Clienteling is the practice of proactively contacting guests to establish and maintain relationships. Use Clientbook daily.
The outcome: more sales from existing guests, more referrals, and a growing community around you.
Always review care instructions at point of sale and provide a care card. Key points: avoid chlorine, lotions, and perfume before wearing; use mild soap and warm water; bring in for professional cleaning every 6–12 months; store separately to avoid scratching.
Use mandrel and ring sizer set. Fingers are largest mid-afternoon or in warm weather — note if sizing in the morning. Wide bands typically need to be ordered 0.5 size larger. Record ring size in guest profile. Typical resizing takes 1–2 weeks for our bench jeweler.
Koser uses Edge for all job ticketing. Keys to successful repair tickets:
Understanding who walks through our door is just as important as knowing what we sell. Koser Jewelers has identified three core guest personas. Each has a different motivation, pain point, and ideal experience. Recognizing which type of guest you're working with helps you serve them better from the first handshake.
Most guests are a blend — a Greg who also cares about brands, or a Shiv who's buying a gift. Use the personas as a starting lens, not a final label. Your goal is always to understand what this specific guest is really hoping to feel when they walk out the door — and make sure they feel it.
Knowledge Test
20 questions covering all 9 training modules. Select the best answer for each, then submit to see your score and explanations.
Diamond Weight Estimator
Select a shape, enter dimensions and count, then click Add. Build up a full ring entry-by-entry. Click any entry to edit it.
Formula: diameter² × (diameter × 0.62) × 0.0061
Based on GIA standard proportions for well-cut round brilliants (depth ~61.5%, table ~57%). Actual weight varies with individual stone proportions.
| Diameter | Carat Wt. | Points |
|---|---|---|
| 2.5 mm | 0.06 ct | 6 pt |
| 3.0 mm | 0.10 ct | 10 pt |
| 3.5 mm | 0.17 ct | 17 pt |
| 4.0 mm | 0.23 ct | 23 pt |
| 4.1 mm | 0.25 ct | 25 pt |
| 4.5 mm | 0.35 ct | 35 pt |
| 5.0 mm | 0.47 ct | 47 pt |
| 5.2 mm | 0.50 ct | 50 pt |
| 5.5 mm | 0.60 ct | 60 pt |
| 5.8 mm | 0.75 ct | 75 pt |
| 6.0 mm | 0.84 ct | 84 pt |
| 6.5 mm | 1.00 ct | 100 pt |
| 7.0 mm | 1.25 ct | 125 pt |
| 7.4 mm | 1.50 ct | 150 pt |
| 7.8 mm | 1.75 ct | 175 pt |
| 8.2 mm | 2.00 ct | 200 pt |
| 8.7 mm | 2.50 ct | 250 pt |
| 9.1 mm | 3.00 ct | 300 pt |
| 9.5 mm | 3.50 ct | 350 pt |
| 10.0 mm | 4.00 ct | 400 pt |
| 10.5 mm | 4.50 ct | 450 pt |
| 11.0 mm | 5.00 ct | 500 pt |
Source: GIA 4Cs / Gems & Gemology. Values represent ideal-proportion averages; actual weights vary by individual stone proportions.
Estimates based on standard industry depth ratios. Actual weight may vary. Weigh loose stones when possible for precise values.
Other Stones
Tracked SeparatelyAdd non-diamond gemstones by type, shape, and dimensions. Tracked independently from diamond CTW.
If depth is omitted, estimated weight uses standard depth ratios per shape. Enter actual depth when known for greater accuracy.
Source: GIA Gem Reference Guide and Gems & Gemology. SG values shown as published GIA ranges; typical value used for weight calculations.
| Stone | SG Range | Typical | Mohs |
|---|---|---|---|
| Precious | |||
| Diamond | 3.52 | 3.52 | 10 |
| Ruby (Corundum) | 3.97–4.05 | 4.00 | 9 |
| Sapphire (Corundum) | 3.99–4.01 | 4.00 | 9 |
| Emerald (Beryl) | 2.67–2.78 | 2.72 | 7.5–8 |
| Semi-Precious | |||
| Alexandrite (Chrysoberyl) | 3.70–3.78 | 3.73 | 8.5 |
| Spinel | 3.57–3.62 | 3.60 | 8 |
| Topaz | 3.49–3.57 | 3.53 | 8 |
| Aquamarine (Beryl) | 2.67–2.78 | 2.72 | 7.5–8 |
| Morganite (Beryl) | 2.71–2.90 | 2.80 | 7.5–8 |
| Zircon | 3.93–4.73 | 4.69 | 7.5 |
| Tanzanite (Zoisite) | 3.35 | 3.35 | 6.5–7 |
| Garnet, Almandine | 3.95–4.20 | 4.05 | 7–7.5 |
| Garnet, Rhodolite | 3.74–3.94 | 3.84 | 7–7.5 |
| Garnet, Tsavorite (Grossular) | 3.57–3.73 | 3.65 | 6.5–7.5 |
| Garnet, Demantoid (Andradite) | 3.82–3.88 | 3.85 | 6.5–7 |
| Tourmaline | 2.82–3.32 | 3.06 | 7–7.5 |
| Peridot (Olivine) | 3.27–3.37 | 3.34 | 6.5–7 |
| Iolite (Cordierite) | 2.53–2.65 | 2.61 | 7–7.5 |
| Quartz (Amethyst, Citrine) | 2.651–2.660 | 2.65 | 7 |
| Other | |||
| Opal | 1.98–2.20 | 2.10 | 5.5–6.5 |
| Turquoise | 2.60–2.90 | 2.76 | 5–6 |
| Pearl (Nacre) | 2.60–2.78 | 2.71 | 2.5–4.5 |
| Jade, Jadeite | 3.24–3.43 | 3.34 | 6.5–7 |
| Jade, Nephrite | 2.90–3.03 | 2.95 | 6–6.5 |
| Lapis Lazuli | 2.75–2.90 | 2.80 | 5–6 |
| Moonstone (Feldspar) | 2.55–2.61 | 2.58 | 6–6.5 |
| Malachite | 3.60–4.00 | 3.80 | 3.5–4 |
| Coral | 2.60–2.70 | 2.68 | 3.5 |
| Amber | 1.03–1.10 | 1.08 | 2–2.5 |
Source: GIA Gem Reference Guide (3rd ed.) and Gems & Gemology. Typical SG used for all weight estimates. Ranges reflect natural variation within each species.
Weight estimates use stone-specific SG values and standard depth ratios. Actual weights may vary.
Inventory Description Builder
Fill in the fields below to generate a standardized inventory entry description. Copy and paste into your inventory system.
Always include: Metal Type → Item Type → Setting Style → Stone Shape → Stone Type → Carat Weight. Use "ctw" for total weight, "ct" for single stone. Abbreviate karat as K (not kt). Use title case for item descriptions. Never use slang or informal language in inventory entries.