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A. We are second generation family jewelers, in business since mid 1930's and operate in both retail and wholesale levels. D&D jewelry (our current showroom in Walnut Creek / CA) was established in 1985, and the accompanying website jewelplus.com has been operating since the early 2000's.
A. We offer engagement and bridal rings, bracelets, necklaces, earrings, gold & platinum chains of varying styles and sizes, diamond & color gemstone jewelry, designer jewelry, watches, custom-made jewelry, personalized jewelry, diamonds, lab-grown diamonds, moissanites, jewelry appraisals, and jewelry & watch repair services. D&D Jewelry / jewelplus.com have the sole sole intention of providing quality jewelry merchandise & services at affordable prices, because repeat satisfied customers that we have successfully met or exceeded their expectations keep our company strong and striving to do better.
A. Yes, we do have a physical store in Walnut Creek, California located about 15 miles east of Oakland and 30 miles east of San Francisco. You and your guests are most welcome to visit/purchase from our store.
A. We stand behind every single item we sell, simply because we understand that reputation takes years to build, however it takes only a moment to be demolished, not to be restored again! You can rest assured that you will receive the value and product/service you expect, or better!
We can also provide Appraisal Certificates for any piece of jewelry you desire for a nominal fee. Appraisal Certificate is an estimate of the approximate retail replacement value of the jewelry, which may be used for insurance coverage or other purposes. The appraisal certificate contains information such as an accurate description of each article of jewelry being appraised along with an image and the appraised value.
A. We offer financing via Paypal’s BillMeLater.
A. Yes, we do offer a layaway plan. It is described in your company policy page.
A. Yes, we ship each item of value in a beautiful individual presentable jewelry box.
A. Yes, we do. Please contact us and we will be more than happy to provide the jewelry service you need.
A. Yes, however please emphasize the type of material (14k, 18k, platinum, etc.) to your jeweler so that they do the job utilizing the same base material as the ring. Also disclose any kind of known treatment (if any) on the gemstone to your jeweler.
If the ring is “Invisible Setting” or “Tension Setting” or any other kind of specialized setting, please make sure that the craftsman is particularly experienced and equipped to handle the re-sizing job properly. You are always most welcome to send your ring to us and we will take care of re-sizing it for you.
A. No, we are not authorized dealers for any of the watch brands we sell. However, we work closely with a network of authorized watch dealers and thus can buy name brands and models directly from them.
A. We can most certainly provide laboratory certified (AIG, GIA, EGL, local labs, etc.) loose stones and jewelry items. However there is an additional cost involved in having the stones certified.
We do a lot of business with AIG (American International Gemologists) Gem Laboratory. Cost for AIG certification range anywhere from $100 to $500 depending on the complexity of the item being certified. GIA certified stones normally are priced roughly 20% more than uncertified stones. EGL certified stones are priced roughly 10% more than uncertified stones.
Having the stones certified by our local recognized laboratory is the least expensive. Due to costs and time involved in having the stones certified, in our experience based on customer requests, we find that normally people do not tend to request certification for high grade color gemstones, and for single diamonds weighing 4ct. and less.
A. There are other lower cost alternatives, contact us for advise.
A. Yes, there are. We recommend the following alternatives in the following order: 1) Lab-Grown Diamond, 2) Moissanite, 3) Cubic Zirconia.
A. For example a ring with one 1.00ct. colorless, top quality diamond can be worth more than 10 times as much as a ring with several small diamonds of 1.00ctw. (total weight) of the same quality. This is because the supply of larger single diamonds is very limited and therefore the price higher.
A. Platinum is a white precious metal used in jewelry settings or watch casings and watchbands. It is important to note that Platinum is not white gold. Platinum is naturally white whereas white gold is created from yellow gold by adding nickel, copper, zinc and sometimes silver.
Platinum resists corrosion and does not tarnish. Platinum is harder than gold and silver, so it outwears them. Its hardness is about the same as Iron (4-4.5 on Mohs’ hardness scale). Platinum is very heavy and dense compared to other metals. it is approximately twice as heavy as silver, and about 1.65 times heavier than 14k gold, and 1.4 times heavier than 18k gold.
Because of its strength and density, Platinum holds diamonds very securely and has high resistance to wear. This is why Platinum prong settings are sometimes used on gold rings and why estate jewelry made of Platinum often looks relatively new after many years of wear.
Platinum is very rare, even more so than gold. Over 20 times more gold and over 12.5 times more silver are produced annually. Approximately 95% of all Platinum supplies come from South Africa and Soviet Republics.
Platinum normally cost more than pure gold on the monetary market exchanges. The high purity of Platinum jewelry (90%-95%) compared to 14k and 18k gold jewelry (58%-75%) is another reason why platinum is more expensive.
A. First and foremost, it is important to know that Lab-Grown Diamonds are NOT synthetic imitation stones (such as: cubic zirconia, zircon, white sapphire, Swarovski, glass, spinel, diamonique, etc.) NOR diamond simulants (such as: moissanite, etc.).
In simple words, Lab-Grown Diamonds are exactly same as diamonds, however much cheaper in price because instead of being formed naturally in Earth's mantle (and then delivered to the surface by deep-source volcanic eruptions), they are developed in laboratory (man-made) under similar environmental conditions as natural diamonds. For this reason Lab-Grown diamonds are considered to be the only non-simulant and conflict-free alternative to natural diamonds because they possess the identical chemical, physical, and optical properties as natural diamonds originating from nature.
Both Lab-Grown and naturally mined diamonds have the same chemical composition and atomic structure, producing the very same durability, fire, and sparkle. Laboratory grown diamonds are truly a testament to the use of technology and human achievement.
Getting more into the science, "Lab-Grown" most accurately describes the man-made production process in which the crystal structure is grown from the "seed diamond". Lab-Grown diamonds are the result of an extemporaneous crystallization process rather than a synthesis of compounds. Lab-Grown diamonds utilize a Chemical Vapor Deposition (CVD) process or a High Pressure High Temperature (HPHT) method that cause carbon atoms to crystallize into the structure that renders them harder than any other form of carbon and harder than any other material.
Both processes require advanced technological equipment and both produce rough diamonds that are then cleaned, cut, and polished in the very same way that naturally-occurring, mined diamond rough is processed. Diamond growth can be initiated only when a pre-existing diamond seed or a sliver of diamond substrate is present for the carbon atoms to attach to and “learn” the diamond’s strong tetrahedral crystal lattice. The “seed” essentially serves as a blue print for the crystallization process as carbon atoms stack one-by-one on the carefully selected seed.
Lab-Grown diamonds are graded to the same carat, clarity, color, and cut specifications as mined diamonds and they can be accompanied by the same type of Diamond Grading Reports written by leading independent gemological institutes and certified appraisers.