GemTrue Apex Synthetic Diamond Tester

GemTrue APEX DK10300. All-in-One Synthetic Diamond Tester | Best Value for High-Precision Diamond Detection. Designed for professionals in jewelry and gemology to identify Cubic Zirconia (CZ) / Glass, Simulants, Natural Diamonds, CVD / HPHT synthetic diamonds, and Moissanite (including low-conductive Moissanite). Equipped with advanced optical and thermal conductivity technology for fast and accurate testing, whether on loose or mounted stones. With a simple user interface, high-resolution display, and USB-C rechargeable design, it’s ideal for retail, labs, or trade show use. 

Instrument Capabilities

Automated Feed: No
Automated Results: Yes
Automated Dispense: No
Detect or Refer (Synthetic Diamonds): Refer*
Detect or Refer (Diamond Simulants): Detect
Multiple Stones at Once: No
Training Required: No (User manual provided with device)

* stones classified as Type IIa/CVD/HPHT are considered referrals and should be submitted for further testing.

The probe tip should be held at an upright position 90 degrees perpendicular to the table of the gemstone. The user then fully depresses the tip applying constant pressure until the result appears on the screen. Wait 10-15 seconds between tests on the same stone to ensure stone doesn’t heat up. User must always ensure the probe tip is kept clean, and when necessary it should be cleaned with a microfiber cloth.

The instrument makes a measurement and displays one of the following results:

Instrument Specifications

Size: 4.0 cm (W) x 18.0 cm (L) x 2.5 cm (H)
Weight: 0.13 kg

Key Features

• Detects Cubic Zirconia (CZ)/Glass, Simulant (Gemstones), CVD/HPHT/Type IIa, Natural Diamonds, and Moissanite (including low-conductive Moissanite)

• Suitable for loose and mounted stones (rings, earrings, pendants, etc.)

• Uses advanced optical and thermal conductivity technology for high-precision detection

• Fast results with visual and audio feedback

• Compact and durable design for on-the-go use

• User-friendly interface with high-resolution display

• Rechargeable USB-C battery

• Ideal for jewelers, wholesalers, gemologists, and appraisers GemTrue

Product Specifications

• Item No.: DK10300 APEX

• Tester Type: 5-in-One Advanced Synthetic Diamond Tester

• Detection: Cubic Zirconia / Glass, Simulant, Natural Diamond, CVD/HPHT/Type IIa, Moissanite

• Stone Type: Loose and mounted stones

• Interface: Screen display with audio alert

• Display: High-resolution feedback display

• Battery: Built-in Li-ion Polymer rechargeable (USB-C), 3.7 V / 2200 mAh

• Battery Life: ~2 hours continuous operation on full charge; ~2 hr charging time

• Auto Power Off: After 5 minutes of inactivity

• Dimensions: 180 × 40 × 25 mm

• Weight: Net 0.13 kg; Gross 0.9 kg GemTrue

Important Notes / Usage Details

Battery & Charging:

• Charge fully before use; low battery may affect accuracy

• Use provided USB-C cable and a DC 5 V / 0.5 A charger (no fast charging)

• Front light red when charging, green when fully charged GemTrue

Retesting:

• Wait for result to clear before retesting and allow stones to cool between tests. GemTrue

Stone Testing:

• Optimized for polished stones with D to M color range

• Minimum testing size: 0.05 ct+

• Fancy-shaped stones may yield inaccurate results GemTrue

Care:

• Gently clean tester tip with included cloth if unused for a while

• Clean stones with a dry tissue before testing GemTrue

Patents:
USA, China, Europe, Hong Kong — multiple patent numbers listed GemTrue

Package Contents

• 1 × GemTrue APEX Tester

• 1 × Metal Loose Stone Holder

• 1 × User Manual

• 1 × Cleaning Cloth

• 1 × Protective Cloth Bag

• 1 × Zip Carrying Case GemTrue

Warnings & Conditions

• Emits UV light during testing — avoid direct eye exposure

• Use specified charger only; battery disposal instructions provided

• Recommended operating temp: 18 °C–28 °C (64 °F–82 °F); storage temp: 20 °C–25 °C (68 °F–77 °F); humidity: 15%–70% GemTrue

Warranty

• 24-month warranty covering manufacturing defects

• Rechargeable battery covered for 6 months

• Exclusions: misuse, tampering, unauthorized repairs void warranty GemTrue

Warranties are issued by the manufacturer of an item and not our store. If an item you bought is defective within the 30 days of your purchase date, we will gladly replace it for you if a receipt is present. Otherwise, we will be more than happy to help you obtain any information you need in order to properly communicate with the manufacturer of your item. Please note that if you choose to have us correspond with the manufacturer regarding your item, there will be a shipping fee and/or a repair charge if the item's warranty is deemed to be expired. 

We want you to be happy with your purchase and would like to be transparent with our returns policy.

ONLINE returns are accepted within 30 days of the purchase date. All items must be unused and in their original packaging. To return an item, please contact us by e-mail or by phone to obtain an RMA number. We will gladly refund you in the original form of payment. Shipping costs for returns are paid for by customers unless item(s) are deemed to be defective or shipped incorrectly by us. Items that do not have a receipt will be issued a store credit if and when approved for return within the 30 days period. Please note, special orders are non-refundable and non-exchangeable.

STORE returns are accepted within 7 days of the purchase date but will be credited with a store credit. There are no cash returns on items purchased in store. Returns of damaged or defective items will be considered within 30 days of the purchase date.

Please note, any purchases made specifically for Trade Shows will not be authorized for return or exchange.