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Mouse's House Antiques

One Carat Old Mine Cut DIAMOND French Antique PLATINUM Ring Solitaire Engagement Edwardian Eye Clean!

One Carat Old Mine Cut DIAMOND French Antique PLATINUM Ring Solitaire Engagement Edwardian Eye Clean!

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Exceptional antique diamond measuring a little over a carat and nearly flawless! This antique stone is the star of the show with a fabulous fire and brilliance and a full on kozibe effect display. French antique piece crafted in platinum with an elegant illusion setting with long prongs propping up the chunky diamond.

I look at antique diamonds all day every day. I love antique diamonds, even those with inclusions or hues typical for the time, because some of those were still among the best available in the market during that period, and were expertly cut by hand to enhance their best characteristics. So I don’t often like to compare antique stones against modern grading standards - BUT this diamond is nearly flawless in clarity, certainly eye clean, and has a particularly lovely fire reflecting a noticeable flash with the other colors of the rainbow. So even though the stone was made long before the 4 C's existed, it sparkles really beautifully. I'm amazed by it now as I wear it in low light how glittery and bright it still is.

Adding to its fabulousness is the condition of the stone with no frosty spots, cracks, or chips and it is secured in long and sturdy prongs with plenty of length. So it is without the wear we typically see on pieces of this age. This one is ready to be worn and enjoyed for another 100 years.

This would be a wonderful gift - right hand ring, statement piece, or stacker.

French hallmark for platinum.

Antique box not included.

It is currently a size 7. Should be sizable but I always recommend showing pictures to your local jeweler for sizing advice since everyone's skill and opinion are different. The ring face with the illusion setting is 9.3mm north south. It is 6.5mm tall off the finger. It weighs 3.25g.

I do not remove my stones from their antique settings for exact measurements but the diamond measures about 6.6mm by 6.1mm by 4.3mm and calculates to a little over one full carat estimated.


All my pieces are pre-owned and in estate condition. As mentioned previously this is an exceptional antique diamond. It is eye clean. As is typical for antique stones, it has a slight warmth to very pale yellow color which was cut to face up brighter, so the beautiful pale yellow hue is mostly seen when studying the stone from the side. The photos taken in the warm early morning sunlight seem to emphasize it. One edge of one area of the girdle has the minutest little flea bites, I wouldn't even call them nibbles, they are tiny and seen only under strong magnification. The cushion shaped stone appears flawless to the eye. The stone is very secure, the prongs look quite good for an antique. It's a wonderful piece. But Due to age - please note this is not a mint condition item.

I enjoy making my customers happy and matching unique pieces with new homes. Please feel free to reach out to me with any questions! It means a lot to me that you are visiting my shop! : )

Feel free to request additional photos and videos as I have several.
Will be sent with expedited shipping, signature and insurance at my cost.

Please feel free watch @mouseshouseantiques on Instagram for inventory drops, sneak peaks and previews! And check out my website as I can add more pics there so you can get extra looks : )

A note about antique diamonds:
The whole "4 C's" of cut, color, clarity, carat didn't come about until the 1940s so prior to that and especially on antique pieces, there was not as much emphasis placed on those things. (Sure people probably appreciated a certain look of a certain diamond as it appeared to the eye but it was not a graded scale like we have today for machine cut stones.) It is difficult to judge antique stones against modern day diamonds with their grading system evaluating their mathematically perfected proportions using methods and standards that didn’t exist for hand cut old cut diamonds. No two old cuts are the same as they were crafted in times lacking those modern standards. The diamond cutters of the time were experts at hand cutting each stone to enhance it which means that even lower color grades can be cut to appear whiter. (Although it is also worth noting that many antique collectors prefer and seek out antique diamonds with warmer hues.)

It is also interesting that "lower graded" diamonds in today's scale system, were some of the best on the market during this period! So it is less about their grades and more about the unique play of light and color that each one can offer. I read one article that stated: “When searching for the perfect old cut diamond (for you), you need to view them through different eyes as you would for a modern diamond, Laboratory grading reports don’t offer too much information in regards to their individual beauty or sparkle which are based more on their individual character and uniqueness that each one potentially offers.”
Just an interesting comparison of antique vs. modern diamonds. : ). I always study each diamond in detail under strong magnification so I describe everything that I see, which can be compared against the 4 C's scale if desired.


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