Engagement rings

For a long time the classic engagement ring has been the solitary diamond, alone on its setting, in the spotlight. Even though fashion changes, it remains an iconic piece of jewelry and a symbol of love. Why is this so? Because in the 1950s, the world’s largest diamond company, De Beers, invented a slogan that would become a milestone: “A diamond is forever”. A diamond is forever. Like a marriage. With these four words, De Beers met with incredible success and in 4 years increased its diamond sales by 55%.

But today nothing prevents the bride or groom from choosing a ring with a colored stone. Engagement rings can include rubies, sapphires, emeralds, aquamarines, amethysts or topaz. The settings can be in white gold, yellow gold, can include one or more stones. Let’s break free from the codes. Here is our selection of engagement rings from Maison Mohs


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  • Art Deco diamond ringWedding ring in platinum

    Art Deco diamond ring in 14-karat gold (585) and platinum. Hexagonal Art Deco ring set with three old mine cut diamonds in a bezel setting. The ring is elegantly decorated with geometric lines and openwork motifs, typical of the Art Deco period. Antique ring, Italy, circa 1925.

    Finger size: 52 EU or 6 US (resizeable)

    Dimensions of the setting: 18 x 10 mm
    Estimated weight of the central diamonds: 0.15 ct

    Condition: fine scratches from use

    Weight: 2.22 gr

  • art deco style aquamarine diamond ringbague aigue-marine en or blanc

    Aquamarine and diamond ring in 18-karat white gold (750). Art Deco-style octagonal ring centered on a large oval aquamarine. The aquamarine weighs 1.75 carats, set with four double prongs and surrounded by 12 diamonds. The diamonds are brilliant-cut, with two of them having princess-cut (square) on the shoulders. French jewel.

    Eagle’s head hallmark (French state hallmark for 18-karat gold) and maker’s mark SC

    Finger size: 51 EU or 5.5 US (resizable)

    Dimensions of the setting: 13 x 15 mm

    Estimated weight of the aquamarine: 1.75 carats

    Total weight of the diamonds: 0.60 carat

    Condition: fine scratches from use

    Weight: 4.27 gr


  • bague belle epoque fiançaillesdiamond wedding ring art deco period

    Art Deco diamond ring made of platinum. The ring is set with two old cut diamonds of 0.23 ct each mounted on it, shouldered by three small diamonds of 0.01 cts on each side in a leaf pattern. It makes 8 diamonds ! The top of the ring is openwork with scroll patterns. Art Deco diamond ring, 1930.

    Unknown mark inside.

    Size of the ring: 54 or 7 (adjustment possible)

    Ring head size: 0.4 x 1 cm x 0.4 cm

    Estimated diamond clarity : SI1 (graphite inclusions visible through the table)
    Size of the main and side diamonds : respectively old cut and 8/8 cut
    Estimated weight of the central diamonds : about 0.23 carat each
    Total estimated diamond weight: 0.52 carat

    Condition: wears of use (polishing is possible on request)

    Weight: 2,36 gr

    *The antique box is not sold with the jewel*

  • bague en or et diamantbague diamant solitaire en or

    Solitaire engagement ring in 18-karat white gold (750) and platinum. This ring features a brilliant-cut diamond weighing 0.10 carats, secured by eight prongs. The setting is adorned with a decorative pattern of radiating points around the diamond. This Retro ring hails from around 1940 and was crafted in Lyon, France.

    Eagle’s head and dog’s head, along with the maker’s mark of Alphonse Moussière, an active jeweler in Lyon since 1902.

    Finger size: 53 EU or 6.25 US (resizable).

    Diameter of the setting: 9 mm.

    Estimated diamond weight: 0.10 carat.

    Condition: Minor signs of wear.

    Weight: 3.51 gr

    *The antique box is not sold with the jewel*

  • Art Deco cluster opal diamond ringbague marguerite opale en platine

    Art Deco cluster opal ring in platinum (950). This antique cluster ring features a central cabochon-cut opal set in a close setting, surrounded by twelve old-cut diamonds. The opal shows vibrant play-of-color with shades of violet, blue, and green, accented by hints of orange. The ring’s gallery is delicately detailed with scrollwork. This Art Deco period ring dates to circa 1930 and originates from France.

    Hallmarks: Dog’s head (french hallmark for platinum) and maker’s mark.

    Ring Size: 51 EU or 5.75 US (Resizable).

    Top dimensions: 18 x 14 mm.
    Opal weight: 1.03 carats.

    Estimated total diamond weight: 0.48 carats.

    Condition: surface abrasions, signs of wear.

    Weight: 8.18 gr

    Gemology and beliefs: Opals come in various types, with noble opals being the kind that exhibits play-of-color. This captivating effect is caused by tiny, uniformly sized spheres of silica. When light hits these spheres and is refracted, it produces a dazzling display of colors on the opal’s surface. In contrast, common opals lack this play-of-color, as their spheres are disordered and of varying sizes, giving them a milky appearance. Opals have been associated with the power of invisibility in folklore, earning them the title “Patronus forum” (patron of thieves) during the late Middle Ages.

  • art deco diamond wedding ringbague ancienne art deco diamants

    Art Deco round diamond ring in 18 Karat white gold (750) and platinum (850). This Art Deco ring features a circular centerpiece with a brilliant-cut diamond in a beaded setting. The ring showcases geometric lines in beaded white gold forming a stylized flower adorned with 8 rose-cut diamonds. The elevated setting of the central diamond creates a space in the metal, adding an airy quality to the ring. With its geometric lines and openwork motifs, this ring embodies the typical Art Deco style (1920-1935) and reflects the white jewelry trends of the era. Circa 1930, France. This piece is numbered.

    Hallmark: Partially faded eagle head (French state hallmark for 18-karat gold) and serial number.

    Finger size: 55 EU or 7.25 US.

    Setting diameter: 11 mm.

    Estimated total diamond weight: 0.13 carat.
    Estimated central diamond weight: 0.07 carat.

    Condition: Light signs of wear.

    Weight: 2.5 gr

  • bague art deco diamantbague art deco ancienne

    Art Deco diamond solitaire ring in 18-karat white gold (750) and platinum. This antique solitaire ring features a significant old mine cut diamond, approximately 0.75 carats in weight, as the central stone. The diamond is held in place by eight prongs. The ring’s design is simple, with no additional ornamentation. This Art Deco solitaire ring dates back to around 1925 and originates from France.

    Ring size: 56 EU or 7.5 US (resizable).

    Diamond details:

    Shape & cut: Old mine cut.
    Estimated dimensions: 6.35-5.78×3.22 mm.
    Estimated weight: 0.75 carat.
    Estimated color: J-K.
    Estimated clarity: VS1.
    Fluorescence: Weak.

    Condition: Chipping on the diamond’s edge (girdle).

    Weight: 3.43 gr

    *The antique box is not sold with the jewel*

  • Antique emerald diamond ring in platinumbague belle epoque en or

    Belle Epoque emerald ring in 18-karat yellow gold (750) and platinum. Exquisite ring from the Belle Epoque period, featuring a central oval emerald of 0.77 carats in a scalloped claw setting. The emerald is surrounded by eight rose-cut diamonds set in platinum. The ring’s band is formed by two strands of yellow gold, adorned with platinum leaves. This ring can also be worn as an engagement ring. Antique ring, Belle Epoque period, circa 1890/1900.

    Hallmarks: Owl and Mascaron (French hallmarks for 18-karat gold)

    Finger size: 50 EU or 5.25 US (resizable)

    Emerald weight: 0.77 carats
    Estimated diamond weight: 0.03 carats

    Condition: Normal signs of wear

    Weight: 2.43 gr

    *The antique box is not sold with the jewel*

  • bague de fiançailles solitaire

    Edwardian solitaire engagement ring in 18 Karat Rose Gold (750). Antique engagement ring centered with a brilliant-cut diamond of approximately 0.15 carats, held in place by six prongs. The central diamond is enhanced by six rose-cut diamonds set on the shoulders of the ring. Antique engagement ring, from the early 20th century, France.

    Eagle head hallmark.

    Finger size: 53.5 EU or 6.5 US (resizing possible)

    Diamond Characteristics

    Shape-cut: round brilliant
    Estimated dimensions: 3.47-3.69×2.36 mm
    Estimated weight: 0.15 carats
    Estimated color: I
    Estimated clarity: VS2
    Estimated cut: Good
    Estimated polish: Good
    Estimated symmetry: Good
    Estimated fluorescence: Faint

    Condition: Signs of wear

    Weight: 1.95 gr

    *The antique box is not sold with the jewel*

  • bague de fiançailles diamants style art deco

    Art Deco style diamond ring in 18 karat white gold (750) The ring is designed in the shape of an elongated diamond, featuring a circular openwork motif at the center, set with a brilliant-cut diamond weighing 0.16 carats. The central diamond is surrounded by two half-circles of 12 brilliant-cut diamonds each. The shoulders are adorned with chevron motifs set with eighteen brilliant-cut diamonds. A vintage ring, in the Art Deco style, dating from the late 20th Century. A beautiful model for an engagement ring.

    750 hallmark, anchor hallmark for Birmingham, XM hallmark for the silversmith, AU mark.

    Finger size: 52 EU or 6 US (resizing possible)

    Weight of the central diamond: 0.16 carats
    Estimated total diamond weight: 0.28 carats

    Condition: Signs of wear on the inside of the ring

    Weight: 2.8 gr

    *The antique box is not sold with the jewel*

  • bague mariage émeraude diamantsbague fiançailles émeraude diamants

    French cluster emerald ring. French cluster emerald ring in 18 karat pink gold and platinum. Antique cluster ring with a round-cut emerald set with eight claws. The emerald is surrounded by eight Dutch rose-cut diamonds. Each shoulder of the ring is also set with a diamond. Antique engagement ring, circa 1920, France.

    Eagle’s head hallmark (French state hallmark for 18 karat gold) and illegible silversmith hallmark.

    Finger size: 62 EU or 10 US (can be changed)

    Diameter of the bezel : 11.6 mm

    Estimated emerald weight : 0,26 carat
    Estimated total diamond weight: 0.40 carat

    Condition : Scratches from use, old setting.

    Weight : 3.95 gr

  • Bague Art nouveau en or

    Belle epoque diamond flower ring in 18 karat (750) rose gold and silver. Antique  ring in the form of a flowering branch set with fifteen rose-cut diamonds, two of which are larger. Antique naturalist ring, circa 1880.

    Owl and swan hallmarks (French State hallmarks for 18-karat gold and silver)

    Finger size: 59 EU or 8.75 US (can be changed)

    Main motif: 20 mm x 9 mm

    Estimated diamond weight: 0.20 carat

    Condition : scratches from use

    Weight : 3.35 gr

    *The antique box is not sold with the jewel*