Independent Jewellery Intelligence
Diamond prices, gold valuations, retailer ratings, and certification verification — the data you need before you buy
Our Tools
Everything you need to make a smarter jewellery purchase
Diamond Price Tracker
Real-time price comparison across leading retailers. Lab-grown and natural diamonds.
Explore →Gold Price Calculator
Spot price × karat × weight. See the real value of any gold piece instantly.
Explore →Is This a Good Deal?
Paste any jeweller's product URL. Get an instant fair price verdict.
Explore →Certification Verifier
Verify IGI and GIA certificates. Flag misrepresentation before you buy.
Explore →How Lustrumo helps you buy better
Search & Compare
Browse diamond and gold prices across top retailers
Verify & Validate
Check certifications, compare against fair prices
Buy with Confidence
Get a personalised intelligence report before you commit
Premium Intelligence Reports
Go deeper with personalised analysis before you buy.
Diamond Intelligence Report
$49
Personalised top-5 stone recommendations, fair price analysis, and certification verification.
- Top-5 stone recommendations
- Fair price analysis for each
- Certification verification
- Retailer comparison
- Delivered within 24 hours
Gold Valuation Report
$29
Melt value analysis, making charge assessment, and comparable pricing for any gold piece.
- Melt value calculation
- Making charge assessment
- Comparable market pricing
- Retailer price comparison
- PDF report via email
Retailer Due Diligence
$29
Business verification, complaint history, pricing analysis, and review sentiment for any retailer.
- Business registration check
- Review sentiment analysis
- Pricing fairness score
- Return policy assessment
- Complaint history overview
Annual Membership
$149/year
Unlimited deal checks, 50% off all reports, monthly market intelligence, priority access.
- Unlimited deal checks
- 50% off all premium reports
- Monthly market intelligence
- Priority access to new tools
- Member-only pricing data
All prices in AUD. Reports delivered as PDF within 24 hours. Membership renews annually — cancel anytime.
Trusted by Buyers Across Australia
“Lustrumo's gold calculator saved me from overpaying for my wedding necklace. The making charge breakdown was eye-opening.”
— Priya K., Melbourne, 22K Gold Necklace Buyer
“I used the deal checker before purchasing my engagement ring. Turns out the retailer was 18% above fair value. Found a better deal the same day.”
— James T., Sydney, Engagement Ring Buyer
“As a first-time diamond buyer, the certification verifier gave me confidence that what I was buying was genuine and fairly priced.”
— Sarah M., Brisbane, Lab-Grown Diamond Buyer