Diamonds Galore! Big 18 Gram Build from GREGORIO 2.90ctw PLAT Diamond Semi Mount


In stock

All prices listed in USD

Gorgeous Large 18 gram Platinum Semi Mount Ring from Designer “Gregorio” with 2.90ctw G VS diamonds (18K White, Yellow, Rose Gold upon request). For Round or Princess Cut Center of 1.75 carats and up, we can accommodate anything larger.

We are authorized “Gregorio” distributors who deal in all natural stones, no clarity or color enhancement of any kind. We supply Jewelry stores and private clients around the world with premium quality diamonds and fine jewelry. We ship worldwide via FED EX courier or by alternate methods like EMS Express if requested by clients. We ensure a smooth hassle free order end to end. We offer international delivery with real time tracking information. We offer monthly Paypal “Bill Me Later” payment plans, full money back guarantees, inspection, approval periods and escrow.

This beautiful Platinum 950 Semi Mount is from LA/Beverly Hills designer Gregorio, one of the most talented bridal ring designers in the world who is known within the industry for high intrinsic value builds with lots of high quality diamonds and precious metal in each robust creation. You will get more value for the money from a Gregorio ring than any other designer we know of.  Often 2/3rds to 3/4’s of the price of a Gregorio ring can be attributed to the cost of the raw materials alone (never mind the labour and intellectual property of the design), versus other designers and manufacturers whose price is determined only by light use of diamonds and light use of metal but a strong markup on their brand name.

This beautiful Semi Mount Ring boasts a very impressive 2.90 carats of white F-G color VS Clarity inset diamonds, the ring has superb sparkle and exceptional eye appeal.  Gregorio gets the job done on a big way with the use of inset round brilliants and princess cuts (1.45cts of each). The ring is a very impressive 4mm wide at the bottom of the shank and tapers up to 11.2mm across the top of the ring and weighs a highly impressive 18 grams of Platinum 950.  A Gorgeous Tank of a Ring.  Please note the ring is available with the Euro Shank Style as shown or with a traditional rounded shank at bottom.

This design is suited to fit a round center stone of 1.75 carat or Princess Cut of 2.5+ carats and we can go much larger, up to 10 carats (3ct 9mm diameter stone is shown in the images below).  Just let us know what size center stone you want the ring suited for and we will set the build and claws up that way for you. As international diamond wholesalers we would be pleased to quote you on a diamond or colored stone of your preferred specs and budget. If you like we can supply you with a free quality cubic zirconia as a place holder until you select your center stone.

As authorized Gregorio dealers we facilitate shipment directly from Gregorio (in Los Angeles, California) to your home or office by over night FED EX. The ring will shipped in the finger size you request when you place your order as it is made specifically for you once your order is paid for. Gregorio has one of the fastest turn around times in the industry at 5-8 business days to your door step.



About Gem of a Diamond: We are experienced multi generation gem dealers and professional jewelers dealing in GIA & EGL Laboratory Certified Natural Diamonds and Precious Gems which are sold on a wholesale basis to institutional clients such as retail Jewelry stores and also to private clients like yourself. We are active members of key international gem trading networks and are well studied in lab certified 100% natural, untreated, earth mined diamonds, emeralds, rubies, sapphires and precious metals. By dealing with us you will be cutting out more than one middleman as we typically buy polished precious gems soon after they are cut from rough and have not endured several levels of pricing mark-up as they work their way through the supply chain. Gem of a Diamond is wholly owned by The Monetary Man Incorporated. Dunn & Bradstreet DUNS# 246858737.

Gem of a Diamond Warranty & Guarantee: We take the utmost care to describe each item accurately and to provide quality images of our inventory. This high degree of diligence is reflected in our flawless, deep eBay Internet presence which spans more than a decade. Our all expenses paid, no hassle, 14 day return policy is unsurpassed. Gem of a Diamond proudly stands behind our products and offers a full lifetime warranty. We guarantee our gemstones and jewelry to be as described. We strive for flawless transactions, instant communication and conduct at highest levels of commerce. We are engineered to provide you with an optimum customer service experience and a risk free transaction.

Payment: We accept all major forms of payment and we offer Buy Now and Pay Later using Paypal’s Bill Me Later Program where monthly payments are made.

Shipping: We ship worldwide via FED EX Courier, DHL, EMS Express & Registered Post. We ensure a very fast, secure and smooth cross border transaction with minimal if any customs hassles.

Customer Service: Please email us through eBay and we
will provide an immediate response. Customers who purchase will have access to
our 7 day a week toll free customer service.


Solitaire with Accents

Stone Shape




Metal Purity






Country/Region of Manufacture

United States

Ring Size


Style Number


Inset Carat Weight


Ring Specifications

4mm wide shank @ bottom, 18 grams of Platinum

Center Stone Size

Ring fits 1.75ct-10ct center stones, built to suit

Diamond Quality

VS1 Clarity, F color



Suitable For



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