An Old Mine Cushion (OMC) with these specifications is a classic "character" stone. In the world of antique diamonds, a 3.00-carat OMC is a significant find, as these were hand-faceted in the 19th century and possess a distinct "inner fire" that modern stones often lack. Here is a breakdown of what you’re looking at from a market and aesthetic perspective: The Specs at a Glance Carat (3.00ct): This is a major "magic number" in the diamond world. Reaching exactly 3.00 carats significantly boosts the value and prestige of the stone compared to one just under (e.g., 2.80ct). Color (L): In modern round brilliants, an "L" can look quite warm. However, for Old Mine Cuts, an L color is often considered a "sweet spot." These stones were cut to sparkle under candlelight, and their steeper crowns and larger facets actually complement warmer tones. It will have a soft, "parchment" or "antique white" glow rather than being icy white. Clarity (SI1): This is generally the best value grade. Since Old Mine Cuts have smaller tables (the top flat facet) and high crowns, inclusions are often better hidden than they would be in a modern cut. As long as it is "eye-clean" (no inclusions visible to the naked eye), this is a smart choice. GIA Certification: This is critical. GIA is the gold standard for grading. For an antique stone, the GIA report will likely be an "Antique Brilliant" or "Cushion Modified Brilliant" with a note about its antique style. ince these were hand-cut, no two Old Mine Cushions are alike. You should look for: The "Kupee" (Culet): Look for a visible flat facet at the bottom of the stone (the culet). In an OMC, this looks like a small circle or "hole" when looking through the top. This is a hallmark of the era. Face-up Size: Because OMCs are often "bottom-heavy" (deep), a 3.00ct OMC might look slightly smaller from the top than a modern 3.00ct cushion. Check the dimensions in millimeters. The Pattern: Does it have the "chunky" flash of light (the "broad flash" look) or a "crushed ice" look? True OMCs should have large, distinct facets that produce bold flashes. Important Information for Buyers: 1. Customs and Import Fees: ○ Your country of residence may impose additional customs and import fees. These fees are the sole responsibility of the buyer. ○ The VAT is not included in the price of the stone as it depends on your country’s laws. ○ How to pay VAT? You will pay the VAT directly to the courier company upon delivery. 2. Country-Specific Information: ○ France & Portugal: French and Portuguese customs will only clear imported loose diamonds (gemstones) if they are handled by a local customs broker. The broker fee is not included in the price of the lot, and it will need to be paid separately. ○ Belgium: To import loose diamonds into Belgium, you must have a license and be registered at the Diamond Office. 2. Cancellation/Withdrawal by the Winning Bidder: ○ In case of a return, VAT, shipping fees, and customs fees will not be refunded. The buyer will be responsible for all costs incurred during the return shipment.