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HRD HTHP D Screen

$ 90.70

Discount Rule: Q(6-9) - 3%; Q(10-25) -5%; Q(26-49) - 8%; Q(50-99) -10%; Q(100-199) - 14%

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Screens stones which are identified as natural and not high temperature high pressure treated having the chemical vapor deposition method applied.From HRD Antwerp, the D-Screen is a compact and practical test that quickly rules out whether a diamond has received HPHT treatment or is synthetic (lab-grown). The D-Screen signals if a diamond should undergo closer examination by a grading lab. Can be used with diamonds from color D to J and from .20ct to 10 carats. With a quick response time, diamonds test almost as fast as you can place them into the unit. Green indicator means the diamond is not synthetic and not HPHT color enhanced. Orange indicator means the stone requires further examination by a grading lab. Unit is barely larger than a stapler, the D-Screen operates on 110-230 volts with supplied adapter or on a 9-volt battery (included). One-year warranty.   Purpose This appliance quickly and reliably identifies diamonds that are neither synthetic nor HPHT colour enhanced from batches of cut colourless or nearly colourless diamonds (colour D to J). Description Diamond sector threatened by synthetic and treated stones. Up until the sixties, a colourless or nearly colourless diamond was by definition a natural stone. The eighties saw the first synthetic ornamental diamonds appearing on the market made using HPHT synthesis (HPHT = High Pressure High Temperature). In 1999, the first reports of commercial HPHT treatment started to appear. This process gained a great deal of attention, as the technique could turn some brown diamonds into colourless ones. It was, after all, the very first technique for ‘removing’ colour. In 2001, the American firm Apollo Diamond announced its plans to produce synthetic diamonds using CVD techniques (Chemical Vapour Deposition). It also became known that it was possible to change the brownish colour of some CVD diamonds to colourless using the HPHT treatment. The arrival of these new techniques heralded an enormous challenge for scientists and researchers. They embarked upon an intensive search for new techniques to identify the nature of a diamond: natural, treated or synthetic. These techniques were also preferably to be user-friendly, reliable and economical. After years of research, the ‘D-Screen’ has been developed to bolster confidence in diamonds. The D-Screen is a practical research device developed by WTOCD and HRD Research. It distinguishes stones that are not synthetic and have not been HPHT colour enhanced from stones that are potentially synthetic or may have had their colour improved by means of HPHT. Is your diamond NATURAL, SYNTHETIC and/or ENHANCED to have a ‘perfect’ colour? What you must know about colour Types of diamond A diamond with a perfect crystal lattice made entirely of carbon would be completely colourless. In reality, however, all diamond crystals contain atomic impurities and structural defects. We call these defects colour centres because they are responsible for the colour of a diamond. The most common atomic impurity in a diamond is nitrogen. Based on the presence of this atom in the diamond lattice, one can classify diamonds into two main groups. Type I diamonds contain a higher level of nitrogen, while type II diamonds contain practically no nitrogen. Type I diamonds Type I diamonds account for the large majority of cut diamonds (bigger than 98%). The nitrogen atoms present can be grouped (type Ia) or isolated (type Ib). Because some of these nitrogen groups absorb blue light, type Ia diamonds often have a light yellow colour that can vary to brownish yellow or brown. Diamonds with isolated nitrogen atoms (type Ib) usually have a deep yellow to orange colour. Natural type Ib diamonds are very rare, accounting for less than 0.1% of the total quantity of natural diamonds of precious stone quality. After their formation, most diamonds remain in the upper part of the earth’s mantle for millions of years under high pressure and subject to high temperatures. In this environment, the nitrogen atoms gradually group to become aggregates, so the diamonds change from type Ib to type Ia. Synthetic diamonds are, however, always very young so they usually contain a very high relative level of isolated nitrogen. Type II diamonds Type II diamonds contain very negligible levels of nitrogen. Because nitrogen is generally the most prominent impurity, this type can be considered the atomically purest form of diamond. One can also distinguish two subgroups here; these are type IIa and type IIb. The first group is very pure and can be completely colourless. These stones do, however, often contain structural defects that can give them a brown to pink colour. Type IIa diamonds are very rare in precious stone quality (approximately 1% to 2% of all diamonds), and the most famous colourless diamonds such as the Cullinan and the Koh-I-Noor are of this type. Type IIb diamonds (less than 0.1% of all diamonds) have substitute boron atoms in the crystal lattice. As a result, these diamonds are blue, although they can also be brown and grey to nearly colourless. All natural blue diamonds are type IIb, so also the famous/infamous Blue Hope diamond. What you must know about treatments HPHT colour treatment General Electric (GE) developed the high pressure (HP) – high temperature (HT) treatment in the mid-nineties with the purpose of changing the colour of ‘lower quality’ (read: light brown) diamonds. With this treatment, the stone is heated to temperatures of over 2100°C. To prevent the diamond from being transformed into graphite, this takes place at a very high, stabilising pressure. The brown colour in some types of diamond (incl. type IIa) is associated with the presence of plastic deformation or defects in the crystal lattice. HPHT treatment changes these defects in the crystal lattice and the cause of the colour disappears. The whole process often takes only a few minutes, but the diamond must then be cut to remove the mat, corroded surface to have it sparkle again. The final result of this treatment greatly depends on the initial properties and the type of the treated diamond. Today, starting with a brown, grey or light yellow diamond, one can achieve a whole range of colours going from intense yellow, to greenish yellow to pink and blue and colourless. HPHT synthesis The purpose of this technique is to synthetically produce a diamond by replicating the formation conditions of diamonds deep in the earth. By applying a high pressure (HP) and high temperature (HT) to a carbon source, one “forges” a synthetic diamond. The first such stone was produced in 1953 by Swedish researchers at the ASEA, soon followed by General Electric and De Beers. Since the seventies, one has thus been able to produce diamonds of precious stone quality that today are sold for approx 30% of the price of a natural diamond. By keeping the conditions stable for a longer time, one can ‘grow’ a rough diamond of 2 to 3 carat in just a few days. The majority of these stones are coloured bright yellow to orange due to the presence of nitrogen atoms in the crystal lattice. They are type Ib diamonds. It is also possible to grow colourless (read: nitrogen-free) diamonds, but the technical problems involved remain sizeable and such stones are practically absent from the diamond market. CVD synthesis Chemical Vapour Deposition is the process through which diamond is produced from a (carbonaceous) gas. The principle was already known in the nineteen thirties, but it took until the start of this century before one succeeded in growing larger single diamond crystals instead of polycrystalline material. The gas (methane is usually used) is heated to a very high temperature. Atom compounds are then broken down, after which the carbon atoms can ‘precipitate’ onto a surface. Under the right conditions, a single crystal is formed that becomes thicker layer by layer. A typical speed for a good quality diamond is half a millimetre a day. CVD diamonds are – because of technological problems – usually light brown in colour, making them relatively unattractive to the average diamond trader. However, HPHT treatment often makes it possible to remove the brown colour. Immediately colourless diamonds are also expected to become available in the future. D-Screen, compact, reliable and fast! You must first check that the stone is a diamond, cut (one facet is sufficient), colour D to J, and with a weight between 0.20 and 10 carats. You place the diamond to be examined with the table downwards on the detector. Close the unit and after a few seconds one of the indicators comes on and you can read off the result: – green indicator: the stone is not synthetic and not HPHT colour enhanced. – orange indicator: the stone may be synthetic or HPHT colour enhanced, the stone requires further examination in a  laboratory. – red indicator: low battery voltage or defective unit D-Screen characteristics – compact size: 4 x 5 x 15 cm – use: battery or AC (including cable) – weight: 325 g, including battery – power: 9 V DC, 250 mA – adaptor input: 110-230 V 50/60 Hz – adaptor output: 9 V DC, 300 mA The advantages of D-Screen: – simple check to see if your stones are not synthetic or HPHT colour enhanced using current technologies – fast and correct result br />- compact and user-friendly – ergonomic – mobile use (battery) – price/quality – all diamond cut forms are suitable – screening of /- 200 stones/hour HRD HTHP D Screen March 17th, 2026Terri

SHIPPING & RETURN

Freight Guide

Breelyn Uniforms offer flat Shipping $12 for orders Australia wide. Breelyn Uniforms primarily use Courier Please and Australia Post to deliver orders within Australia.


Delivery Time Guide

Delivery within Australia is normally between 2 to 10 working days for product orders without ornamental service (depending on your location). For orders with ornamental services, such as Embroidery and Screen Printing etc., normal delivery time should also plus the time for ornamental services. 

From time to time, we cannot guarantee that delivery will occur in the delivery time frames specified in above. Delivery time frames may change from time to time due to unforeseen circumstances; and the Company is not liable with respect to any loss, damage, cost, expense or injury you or any third party suffers as a result of a change in delivery times or a delay in delivery.

We will contact you if there will be significant delivery delay.


Time Guide For Ornamental Services

Embroidery:

Embroidery Sample Preparation: ~ 5 working days from Order Confirmation, Payment and Digital Mock Up Approval..

Production: 7-10 Working Days from Order Confirmation, Payment and Embroidery Sample Approval.

Screen Printing:

Screen Printing Artwork Preparation: ~ 3 Working Days from provision of Artwork (Vector format artwork such as AI, PDF), Order Confirmation and Payment.

Production: 7-10 Working Days from Order Confirmation, Payment and Artwork Approval.

Dye Sublimation:

Sublimation Product Sample: ~10 working days from Order Confirmation, Artwork Approval and Payment.

Production: 4-5 weeks from Order Confirmation, Payment and Product Sample Approval.

We are capable to handle urgent orders. You are welcome to enquire with detail requirement by email: [email protected] or phone: 1300 786 168.

Delivery and Title

Delivery of Goods will take place at the Delivery Address specified by the Customer during the Order process. We shall at the Customer’s expense deliver the goods to this address.

If there is no one available at the Delivery Address to accept delivery, or there is limited access to the Delivery Address or it is unsafe or impractical to make delivery, a calling card will be left for the Customer. It is the Customer’s responsibility to follow the instructions stated on the calling card.

Where the Customer do not collect your Goods or call the Courier Company within 5 days of a failed delivery, it may cause return of the Customer’s Goods and re-delivery. If Goods are required to be redelivered, the Customer will be required to pay any associated fees for redelivery.

The Customer may nominate to have the parcel left without a signature (e.g. on door step). However, if the Customer do so, the Customer understand and agree that our selected couriers are permitted to leave the Order without obtaining a signature, therefore we and our couriers are released of all responsibility and liability for the Orders left unattended.

Please note that it might not be possible for us to deliver to some locations. If this is the case, we will inform the Customer and arrange for cancellation of the Order or delivery to an alternative delivery address.

Upon delivery, the Customer must inspect your Goods and check that the Goods delivered match your Order. If the Customer find any damage, missing, faulty or incorrect goods, the Customer need contact our Customer Service Team as soon as possible on 1300 786 168 (Australia Customer) or 0061 2 9671 5929 (Customer outside Australia) and email us at [email protected] referring to official invoice number and date, and state what happened on the Goods. If you request return of goods, please refer to our Returns Policy at below.

Returns & Claims

All return goods must be authorized by the Company. The Customer shall email the Company at [email protected] of any claim within 14 days after the receipt of Goods.


Return of Defective Goods

Breelyn Uniforms gives up to 90 days warranty against manufacturer defects and quality failure. This warranty does not cover general wear and tear from use, other accidents or incidents. 

If the Goods are defective or fail to be of acceptable quality, the Company will repair or replace the goods or any part of them that is defective at our discretion.

The Customer should follow up the Garment Care Instruction on each garment. 

The Company offer Free Return service for defective Goods. After return request is authorized by the Company, the Customer can return the defective Goods at local Post Office by using Reply Paid Form provided by the Company for free return.

If you have received Goods with defect, please follow the procedure at below for return:

Step 1: The Customer shall email the Company at [email protected] referring to official invoice number and date, and state what happened on the Goods within the warranty period. Our Customer Service team will contact you within 2 business days after received your email. We may request you to provide one photo or two showing the defect/fault, which will speed up the returns process for you.

Step 2: After the assessment, you will receive an email from Customer Service team with Return Authorization Number and Reply Paid Form as a pdf. Return Authorization Number is valid for 2 weeks. Print this Reply Paid Form off and attach it to your return parcel.

Step 3: Drop off your package at any Australia Post office for free return.

Step 4: We will make inspection after receipt of the Goods and will contact you with the solution on the defects.

Step 5: After repair or replacement of the Goods, we will send the Goods back to you at our own expenses.

The Company’s liability, implied warranty or condition is limited to the replacement or repair of Goods at the Company’s sole discretion.

 

If You Changed Your Mind

We will not accept return or exchange of Goods already decorated or with Special Sale Terms, such as Special or Clearance Goods. We will not accept return or exchange of items that custom made or produced through indent.

The Customer can request return of Goods other than above. There is minimum $15 restocking fee to apply.

 If you want to return the Goods simply because you changed your mind, please follow the procedure at below for return:

Step 1: The Customer shall email the Company at [email protected] within 7 days after the receipt of Goods, referring to official invoice number and date, and state reason for return. Our Customer Service team will contact you within 2 business days after received your email.

Step 2: After the assessment, you will receive an email from Customer Service team with Return Authorization Number which is valid for 2 weeks.

Step 3: Return the Goods to the Company. Please enclose Return Authorization Number, Copy of Invoice with your return Goods and address to:

Breelyn Uniforms Returns Centre
PO Box 423, Doonside NSW 2767.
Australia

Freight cost for return of purchased Goods will be the responsibility of the Customer. If the return parel does not reach us safely, we cannot complete the Refund or Credit procedure, so please send via trackable or registered post.

Step 4: All goods will be inspected on return. All return Goods should be in re-saleable condition:

- All tags must be attached.
- All package in original condition.
- Products must not have been worn, used, laundered or altered in any way.

Step 5: For return Goods with sound condition, we will proceed to Refund or Credit into your account. The Freight cost in original order is non-refundable.

Refunds are processed within 5 business days after receipt of the Goods. You'll receive a confirmation email once your refund or exchange is done!

For Credit Card or PayPal payment, refund will be credited into the same account your payment came from.

If You Want to Exchange for Different Size or Different Goods.

We will not accept return or exchange of Goods already decorated or with Special Sale Terms, such as Special or Clearance Goods. We will not accept return or exchange of items that custom made or produced through indent.

The Customer can request exchange of Size or Goods other than above. There is minimum $15 restocking fee to apply.

If you would like to exchange for a different size or different Goods, you need to return your purchase to initiate a refund and place a new order as following:

Step 1: The Customer shall email the Company at [email protected] within 7 days after the receipt of Goods, referring to official invoice number and date, and state reason for return. Our Customer Service team will contact you within 2 business days after received your email.

Step 2: After the assessment, you will receive an email from Customer Service team with Return Authorization Number which is valid for 2 weeks.

Step 3: Return the Goods to the Company. Please enclose your Return Authorization Number, Copy of Invoice with your return Goods and address to

Breelyn Uniforms Returns Centre
PO Box 423, Doonside NSW 2767.
Australia

Freight cost for return of purchased Goods will be the responsibility of the Customer. If the return parcel does not reach us safely, we cannot complete the Refund or Credit procedure, so please send via trackable or registered post.

Step 4: All goods will be inspected on return. All return Goods should be in re-saleable condition:

- All tags must be attached.
- All package in original condition.
- Products must not have been worn, used, laundered or altered in any way.

Step 5: For return Goods with sound condition, we will proceed to Refund or Credit into your account. The Freight cost in original order is non-refundable.

Refunds are processed within 5 business days after receipt of the Goods. You'll receive a confirmation email once your refund is done!

For Credit Card or PayPal payment, refund will be credited into the same account your payment came from.

If Part of the Goods are Missing

If you find parts of the Goods missing, please follow the procedure at below for re-supply:

Step 1: The Customer shall email the Company at [email protected] within 14 days after the receipt of Goods, referring to official invoice number and date, and state what Goods are missing in the delivery. Our Customer Service team will contact you within 2 business days after receipt of your email. The Customer shall check the Goods thoroughly and carefully before claim.

Step 2: After the assessment, the Company will re-supply the missing Goods within normal delivery time.

If Received Goods Are Incorrect

If you find the received Goods are incorrect, please follow the procedure at below for return:

Step 1: The Customer shall email the Company at [email protected] within 14 days after the receipt of Goods, referring to official invoice number and date, and state incorrect Goods in delivery. Our Customer Service team will contact you within 2 business days after received your email. We may request you to provide one photo or two showing the Goods that are incorrect, which will speed up the returns process for you.

Step 2: After the assessment, you will receive an email from Customer Service team with Return Authorization Number and Reply Paid Form as a pdf. Return Authorization Number is valid for 2 weeks. Print this Reply Paid Form off and attach it to your return parcel.

 

Step 3: Drop off your package at any Australia Post office for free return.

Step 4: All goods will be inspected on return. All return Goods should be in re-saleable condition:

- All tags must be attached.
- All package in original condition.
- Products must not have been worn, used, laundered or altered in any way.

Step 5: We will re-supply the right Goods for replacement at our own expenses.

For any queries, please contact our Customer Service Team on 1300 786 168 (Australia Customer) or 0061 2 9671 5929 (Customer outside Australia) and email us at [email protected].

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