Lim Marina
Test Master | Precision Diamond Testing Instrument
Test Master | Precision Diamond Testing Instrument


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Essential Tool for Diamond Buyers! Discover the high-precision diamond tester, the ultimate instrument for jewelers, gemologists, and gemstone enthusiasts.
Key Features:
- Authenticity Guarantee: Instantly verify if your gemstone is a diamond, moissanite, or imitation.
- Cost-Saving & Accurate: Save money by verifying authenticity yourself with reliable results.
- Fully Automatic: Integrated thermal conductivity meter for easy and immediate results.
- Fast & User-Friendly: Designed for quick and straightforward operation.
- Excellent Craftsmanship: Made from high-quality materials for long-lasting satisfaction.
- Customer Service Guarantee: Our dedicated team is here to ensure a smooth shopping experience.
Specifications:
- Width: 5.8 cm
- Length: 16 cm
- Height: 4 cm
- Weight: 97 g
- Material: Rubber and Plastic

Shipping
Shipping
We make sure your order is prepared with care and shipped out quickly.
- Delivery within the USA usually takes 4–8 business days, depending on your location.
As soon as your package is on its way, you’ll receive a tracking link so you can follow every step until it arrives at your door.
Return
Return
We want you to love your purchase.
- If for any reason you’re not completely satisfied, you can return your order within 30 days of delivery.











Verified
My wife loves it, easy returns.
I ordered a few dresses for my wife. Two didn’t fit well, but the return was smooth and easy. The others fit perfectly and the quality is great.
Eric,
5 days ago
Verified
Thank you for everything
I’ve been shopping here for many years, always receiving beautifully packaged orders. Now that you’re closing, I’m truly touched. ❤️
Melissa,
2 hours ago
Verified
Always very satisfied
I’ve been shopping here for 10 years. The products have always been excellent and reliable. I’m sad to hear you’re closing, but I’m very grateful. Thank you for everything!
Sophia,
6 hours ago
Rating 4.7 / 5, based on 1583 reviews. Showing our five-star reviews.

We are about to close down.
For 30 years, Lim Marina Boutique has been by your side in celebrating elegance and grace.
I am Mei Ling Lim, the founder of Lim Marina Boutique. This little boutique has been more than just a place to find jewelry — it has been a welcoming space where countless women discovered their confidence and style.
Now, I have decided to devote more of my time and love to my family and to a new chapter of life. 💛
As a gesture of gratitude and farewell, we are offering a limited-time storewide sale with discounts of up to 80% off, while supplies last.
Thank you for your support through the years, for filling this place with beauty and memories. May our final moments together also be gentle and full of grace.
With heartfelt gratitude,
Mei Ling Lim
Lim Marina Boutique