Frequently Asked Questions

Yes. We can special order any piece of jewelry from any designer we carry. Call us at 516-747-6666, email diamonds@hlgross.com, or visit our Garden City showroom.

Yes. Most jewelry can be made in a variety of metal types and colors. We will contact the designer to confirm the price and availability of your request.

Yes. If you would like your jewelry modified or ordered in a special size, we can usually do so. Depending on the style of the piece, additional charges may apply. Please contact us with specific requests.

Our engagement ring settings are sold without the center stone. Each setting is shown with a center diamond, but it can be made for any shape or size diamond, and the center stone is sold separately.

Prefer a ring that is complete and ready to wear? Our Ready To Go natural diamond engagement rings as well as our Ready To Go lab grown diamond engagement rings come with the center diamond already set.

Schedule an appointment at our Garden City showroom for a complimentary diamond education with one of our diamond experts. They will guide you through the selection process and curate a collection of diamonds for you to choose from, natural or lab-grown.

You can also start online with our natural diamond search or lab-grown diamond search.

Yes. Whether you are remounting an older diamond or setting a diamond you recently acquired, all of our ring settings can be made for your stone.

Yes. Because our rings are built to order, they can be made for almost any size or shape of gemstone. If you are shopping for a colored stone, visit our store to meet with one of our Graduate Gemologists.

Yes. We keep an extensive inventory of natural and lab-grown diamonds in our Garden City showroom, available to view any time during store hours.

No. Visit our showroom during normal business hours and one of our associates will be happy to help you. If you would rather reserve a time, schedule an appointment online or call 516-747-6666.

Fingers change size throughout the day and not all ring sizers are the same, so sizing is more of an art than a science. Visit our store and one of our professionals will accurately size your finger. If you are keeping it a surprise, bring in a ring the recipient wears on the appropriate hand and we will tell you its size.

Ask which lab graded the diamond and whether it is natural or lab-grown, whether the jeweler is an authorized retailer for the designer, where sizing and repairs are done, what the return policy is, what care is included after the sale, and whether you can trade up the diamond later.

We carry engagement rings from Tacori, Verragio, A.JAFFE, Fana, Precision Set, Martin Flyer and Christopher Designs, along with our own Signature Collection. Explore all our bridal designers, or visit our Garden City showroom to see the collections in person.

Natural diamonds formed deep in the Earth over millions of years and are mined, then cut and polished. Lab-grown diamonds are created in a laboratory using a diamond's seed. They differ in origin and are priced differently, and our diamond experts can explain how each fits your priorities and budget. See our side-by-side comparison of natural vs. lab-grown diamonds.

Yes. We offer natural and lab-grown diamonds as separate choices, and every diamond is clearly identified as one or the other. Learn how they differ in our guide to natural vs. lab-grown diamonds. Shop online with our natural diamond search or lab-grown diamond search, or visit our Garden City showroom to compare both side by side in one visit. Please note that we offer lab grown diamonds only as the center stone in an engagement ring. They are not available in any other piece of jewelry that we sell.

Yes. All the diamonds we sell are ethically sourced and adhere to Kimberley Process guidelines, and we only partner with vendors that do the same. Our gemstones come from longstanding suppliers who use fair-trade and ethical sources. Learn more about our conflict-free diamonds.

Yes, for natural diamonds purchased from H.L. Gross & Bro. You may trade in the natural diamond from your engagement ring for a 100% credit of the original purchase price toward any new diamond that costs at least 100% more than your original diamond. The diamond must be in its original condition, free of chips or scratches, and come with its original laboratory report. Lab-grown diamonds are not eligible. Diamonds purchased elsewhere, or upgrades that do not meet the price requirement, are evaluated individually. Read the full Diamond Trade-Up Policy.

Yes. Our associates help couples choose wedding rings for comfort, metal and style, including rings that complement an engagement ring bought from us or elsewhere. Bring the engagement ring with you if you can so we can match its proportions and metal color.

Yes. We carry a wide selection of men's wedding rings, with and without diamonds, as well as women's wedding rings, eternity rings and stackable rings.

Yes. H.L. Gross & Bro. is proud to be part of the worldwide network of Official Rolex Jewelers, allowed to sell and maintain Rolex watches. Visit our showroom at 840 Franklin Avenue in Garden City, or discover Rolex at H.L. Gross & Bro.

Yes. We are part of the Rolex Certified Pre-Owned program. Learn more about Rolex Certified Pre-Owned at H.L. Gross & Bro.

Yes. H.L. Gross & Bro. is an official TUDOR retailer in Garden City, New York. Explore TUDOR at H.L. Gross & Bro. or the TUDOR collection.

Yes. Beyond our Rolex Certified Pre-Owned offering, we carry a selection of pre-owned luxury watches from brands such as Audemars Piguet, Patek Philippe, Cartier, TUDOR, Breitling, Omega, Panerai, IWC, Bulgari and Hublot. Browse our pre-owned watches or contact our watch experts with specific requests.

The original battery in your watch can last up to 5 years before it needs to be replaced. Replacement batteries generally last 12 to 18 months.

Your watch will usually tell you when it needs service: it may stop, run fast or slow, or feel different when you wind the crown. If you are unsure, bring it in and we will assess it and give you a repair estimate. Learn more about watch repair and servicing your Rolex.

Bring it to H.L. Gross & Bro. Jewelers at 840 Franklin Avenue in Garden City. Two full-time, certified watchmakers work in our own watchmaking studio on the premises, so watches are rarely shipped out. Bring your watch in during store hours or call 516-747-6666. Learn more about watch repair.

Our watchmakers handle everything from a simple battery change to a complete overhaul:

• Complete overhauls: movement disassembled, cleaned, lubricated and regulated
• Battery replacement, with the gasket checked
• Crystal replacement and case and bracelet refinishing
• Bracelet sizing and clasp and pin repair
• Water resistance testing after any case opening

Yes. Every evaluation is complimentary. Our watchmaker inspects your watch, quotes the work, and nothing is done until you approve it. We call you when it is finished, timed and pressure tested.

In-stock jewelry may be returned for a full refund or exchanged within 14 days of purchase, as long as it is unused and in its original condition with its original box, warranty and gemstone documentation.

New Rolex and Rolex Certified Pre-Owned watches are final sale. Engagement rings and wedding rings are made to order and cannot be refunded or exchanged unless purchased directly from our display case with no modifications. Sale items, fashion rings in sizes below 5 or above 7, special orders, layaways more than 60 days old and any modified or customized piece are not eligible. See our full Returns & Exchanges policy.

Yes. Under our Lifetime Ring Guarantee, if a problem is caused by a manufacturing defect, we repair it free of charge. If it was caused by normal wear and tear or trauma to the ring, you pay only for the materials needed for the repair. You can bring your ring in for unlimited prong tightening, cleaning and inspection. Your first resizing is on us, as is one polish and rhodium plating per year.

The center diamond is not covered by the guarantee, so we recommend insuring your ring against loss, breakage and theft.

Yes. Every piece you buy from us comes with a complimentary "spa membership." Bring in your engagement ring, wedding ring, diamonds or fashion jewelry at any time for a full-service cleaning and inspection, and we will recommend any repairs or preventive maintenance needed. Learn more about Lifetime Care.

Bring it to H.L. Gross & Bro. Jewelers at 840 Franklin Avenue in Garden City, a family jeweler on Long Island since 1910. Most repairs are done in our own on-site studio by craftsmen who have worked at the bench for decades. No appointment is needed to drop off a repair during store hours. Call 516-747-6666 with any questions.

We handle a full range of repair and restoration work, including:

• Ring sizing
• Prong repair and re-tipping
• Stone tightening and replacement
• Chain, clasp and soldering repairs
• Polishing, refinishing and rhodium plating
• Pearl restringing

Most work is done in our on-site studio in Garden City; a few specialized jobs go to trusted outside specialists, and we will tell you exactly what your piece needs before we start.

Yes. We repair jewelry no matter where it was purchased. Bring it to our Garden City showroom and we will inspect it with you and give you a free estimate before any work begins.

Every repair is different, and the labor and materials needed depend on several factors. Estimates are free: we evaluate your piece with you, quote the work, and always get your approval on the price before any work begins.

Most standard repairs are ready in 4 to 5 business days, though it can take longer during busy seasons such as the holidays. Repair work is left with our jeweler, and we will call you once it has been completed, polished and passed quality control. Appointments may be made for modification or polishing of one engagement ring or wedding ring; additional items must be dropped off. Learn more about jewelry repair.

Yes. We offer insurance appraisals by appointment. To book one, schedule an appointment or call 516-747-6666. The cost depends on the number and size of the items being appraised.

Yes. Bring in your old or unworn jewelry and we will advise you on how to reinvent it into something you will love to wear.

Yes. We buy loose diamonds, engagement rings, diamond jewelry, gold and estate jewelry, certified or not. A GIA Graduate Gemologist evaluates your pieces and an owner makes the offer in person. You can sell outright and leave with a check the same visit, take the value as a trade-in credit, or consign your piece for sale in our showroom. Start on our Sell Your Diamonds or Gold page.

Yes. We buy luxury watches outright or in trade, including Rolex, TUDOR, Patek Philippe, Audemars Piguet, Cartier, Omega, Vacheron Constantin, A. Lange & Söhne and other fine brands. Send us the details and photos for a preliminary range, then bring the watch to our Garden City showroom (or use insured shipping) for an in-person offer from an owner. Get started on our Sell Your Watch page.

We make every effort to keep our online inventory up to date and accurate. Although unlikely, an item's price can change because of fluctuating metal and diamond markets, or a pricing mistake can be made; in that case we reserve the right to modify the price of the sale, or void it if you do not wish to purchase at the new price. An item may also become unavailable before we remove it from the site, in which case we reserve the right to void the sale.

In some cases, because of the shape of the center diamond or the finger size chosen, a designer may charge a modification fee on a ring order. If that happens, we will let you know and get your approval before the ring goes into production.

Yes. Every purchase comes in a beautiful H.L. Gross & Bro. Jewelers box and can be gift-wrapped at no additional charge.

Yes. Gift certificates are available in any denomination and they are not redeemable for cash. Any purchase can include a gift receipt.

Yes, as long as the item can be engraved. We will be happy to send it out for engraving.

H.L. Gross & Bro. Jewelers is at 840 Franklin Avenue, Garden City, NY 11530, on Long Island in Nassau County. Call 516-747-6666 or email diamonds@hlgross.com.

We are a family-owned jeweler, in business since 1910 and now run by the fifth generation of the Gross family. Our single showroom brings together engagement rings, fine jewelry and watches, including Rolex and TUDOR. Read our story.

Since 1910. Brothers Harry and Abe Gross opened the first store in downtown Brooklyn, a second location followed on Jamaica Avenue in 1928, and the family opened its original Garden City store in 1969. Read our story.

Yes. H.L. Gross & Bro. has been family-owned for more than a century and is run today by the fifth generation of the Gross family, Brad and Matt Gross, from our showroom at 840 Franklin Avenue in Garden City, Long Island.

Yes. Our Garden City showroom brings together engagement rings, wedding rings, fine jewelry and luxury watches, along with jewelry repair in our on-site studio, watch repair, insurance appraisals and complimentary cleaning and inspection for pieces bought from us.

Look for a jeweler you can visit in person and return to for years:

• A long track record in the community
• Craftsmen on the premises for sizing and repairs
• An independent grading report for every center diamond
• Authorized relationships with the designers it sells
• Clear, written return and repair policies
• Care after the sale, such as cleaning, inspections and resizing

H.L. Gross & Bro. Jewelers has been family-owned since 1910 and has served Long Island from Garden City since 1969. Visit us at 840 Franklin Avenue or read our story.

• Tuesday and Thursday: 10:00 AM to 7:30 PM
• Wednesday and Friday: 10:00 AM to 5:00 PM
• Saturday: 10:00 AM to 5:30 PM
• Sunday and Monday: Closed
• *Extended Holiday Hours

You can schedule an appointment online, call us at 516-747-6666 or email diamonds@hlgross.com. Walk-ins are welcome during store hours.