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300ct Brilliant Cut Diamond Ring

Victor Mayer Calima Ring in 18k White Gold with Diamonds
By Victor Mayer
Located in Pforzheim, DE
, together 0.47 ct, brilliant cut Dimensions: width 5.5 mm Limited edition: 300 pieces We offer this piece
Category

2010s German Contemporary Bridal Rings

Materials

Diamond, White Gold, 18k Gold

Round Turquoise Guilloche Enamel Ring in White Gold with Diamonds
By Victor Mayer
Located in Pforzheim, DE
ct, G VS) in diamond bezel and on ring shank. VICTOR MAYER is a fine jewelry house known for its
Category

2010s German Art Deco Cocktail Rings

Materials

Diamond, White Gold, Enamel

Round Silver Grey Guilloche Enamel Ring 18k White Gold 57 Diamonds
By Victor Mayer
Located in Pforzheim, DE
Victor Mayer Trance Silver Grey Enamel Ring in 18k White Gold with 57 Diamonds (total 0.55 ct, G VS
Category

2010s German Contemporary Cocktail Rings

Materials

Diamond, White Gold, Enamel

Round Opalescent Turquoise Enamel Ring in White Gold with 57 Diamonds
By Victor Mayer
Located in Pforzheim, DE
(total 0.55 ct, G VS) in diamond bezel and on ring shank. VICTOR MAYER is a fine jewelry house known
Category

2010s German Art Deco Cocktail Rings

Materials

Diamond, Yellow Gold, Enamel

Round Electric Blue Guilloche Enamel Ring in White Gold with Diamonds
By Victor Mayer
Located in Pforzheim, DE
Victor Mayer Trance Electric Blue Enamel Ring in 18k White Gold with 57 Diamonds (total 0.55 ct, G
Category

2010s German Art Deco Cocktail Rings

Materials

Diamond, Enamel, White Gold

Victor Mayer Trance Petroleum Enamel Ring 18k White Gold with Diamonds
By Victor Mayer
Located in Pforzheim, DE
Victor Mayer Trance Petroleum Enamel Ring 18k White Gold with Diamonds Ring Trance, 18k white gold
Category

21st Century and Contemporary German Contemporary Cocktail Rings

Materials

Diamond, White Gold, 18k Gold

Victor Mayer Ring Peacock Silver Enamel 18k White Gold 8 Diamonds 0.16 ct
By Victor Mayer
Located in Pforzheim, DE
, vitreous enamel, 8 diamonds total 0.16 ct, G VS brilliant cut, heliodor Reference: V1453/SF/HD/00/101
Category

2010s German Contemporary Cocktail Rings

Materials

Diamond, 18k Gold, White Gold

HRD Certified Fancy Yellow Diamond Ring 0.41ct VS Natural Color Made in Germany
Located in Viena, Viena
added a top fancy yellow cushion (cushion shape) diamond with 0.41 ct, VS2, cut very good / good, 4.58 x
Category

2010s Italian Modern Solitaire Rings

Materials

Diamond, Yellow Diamond, 18k Gold, White Gold

Ring 18k Yellow / White Gold Vitreous Enamel 6 Diamonds 0.006ct Prehnite milky
By Victor Mayer
Located in Pforzheim, DE
Victor Mayer Ring Cocktail, 18k YG/WG, vitreous enamel, 6 diamonds total 0.06 ct, G VS brilliant
Category

2010s German Contemporary Cocktail Rings

Materials

Diamond, 18k Gold, White Gold, Yellow Gold

Victor Mayer Trance Enamel Ring 18 K Rose Gold/Yellow Gold Diamonds
By Victor Mayer
Located in Pforzheim, DE
Victor Mayer Trance Opal Raspberry Enamel Ring in Rose Gold/Yellow Gold with Diamonds Ring Trance
Category

2010s German Contemporary Cocktail Rings

Materials

Diamond, Yellow Gold, Rose Gold, Enamel

Victor Mayer Eloise Ring 18k Rose Gold/White Gold with 16 Diamonds
By Victor Mayer
Located in Pforzheim, DE
: 16 diamonds, together 0.48 ct Dimensions: Ø 15.8 mm x 15.8 mm Edition limited to: 300 pieces We
Category

2010s German Gothic Revival Dome Rings

Materials

Diamond, Rose Gold, White Gold

Medium Blue Vitreous Enamel Ring Floral Motif 18k Yellow Gold 5 Diamonds 0.03 ct
By Victor Mayer
Located in Pforzheim, DE
brilliant cut Edition limited to: 300 pieces We offer this piece of jewellery in yellow, white and rose
Category

2010s German Contemporary Dome Rings

Materials

Diamond, Enamel, Yellow Gold

Round Medium Blue Guilloche Enamel Ring in 18k Yellow Gold with 57 Diamonds
By Victor Mayer
Located in Pforzheim, DE
(total 0.55 ct, G VS) in diamond bezel and on ring shank. VICTOR MAYER is a fine jewelry house known
Category

2010s German Art Deco More Rings

Materials

Diamond, Yellow Gold, Enamel

Round Light Green Enamel Ring in Rose Gold Gold with 57 Diamonds
By Victor Mayer
Located in Pforzheim, DE
Trance Light Grey Enamel Ring in Rose Gold/Yellow Gold with Diamonds Ring Trance, 750/- RG/GG
Category

2010s German Art Deco Cocktail Rings

Materials

Diamond, Rose Gold, Yellow Gold, Enamel

Round Pink Guilloche Enamel Ring in 18k White Gold with 57 Diamonds
By Victor Mayer
Located in Pforzheim, DE
Victor Mayer Trance Pink Enamel Ring in 18k White Gold with 57 Diamonds total 0.55 ct, G VS About
Category

2010s German Art Deco Cocktail Rings

Materials

Diamond, White Gold, Enamel, 18k Gold

Ring Enamel Round Opalescent Purple 18k White Gold 5 Diamonds 0.03 ct
By Victor Mayer
Located in Pforzheim, DE
raspberry Diamonds: 5 diamonds, together 0.03 ct Edition limited to: 300 pieces We offer this piece of
Category

2010s German Art Nouveau Dome Rings

Materials

Diamond, 18k Gold, White Gold

Oval Ring 18k Yellow Gold / White Gold, Opal Vitreous Enamel, 6 Diamonds 0.06 Ct
By Victor Mayer
Located in Pforzheim, DE
Victor Mayer Ring Cocktail, 18k YG/WG, vitreous enamel, 6 diamonds total 0.06 ct, G VS brilliant
Category

2010s German Contemporary Cocktail Rings

Materials

Diamond, Chalcedony, 18k Gold, White Gold, Yellow Gold

Victor Mayer Trance White Enamel Ring 18k Rose Gold/Yellow Gold with Diamonds
By Victor Mayer
Located in Pforzheim, DE
Victor Mayer Trance White Enamel Ring 18k Rose Gold/Yellow Gold with Diamonds Ring Trance, 18k
Category

21st Century and Contemporary German Contemporary Cluster Rings

Materials

Diamond, Rose Gold, Yellow Gold, 18k Gold

Victor Mayer Ring Peacock Light Grey Enamel 18k Rose Gold 8 Diamonds 0.16 ct
By Victor Mayer
Located in Pforzheim, DE
, vitreous enamel, 8 diamonds total 0.16 ct, G VS brilliant cut, pink tourmaline Reference: V1453/LG/06/00
Category

2010s German Contemporary Cocktail Rings

Materials

Diamond, Tourmaline, Enamel, Rose Gold

Victor Mayer Ring Peacock Opal White Enamel 18k Yellow Gold 8 Diamonds 0.16 ct
By Victor Mayer
Located in Pforzheim, DE
, vitreous enamel, 8 diamonds total 0.16 ct, G VS brilliant cut, rubellite Reference: V1453/OP/3N/00/102
Category

2010s German Contemporary Band Rings

Materials

Rubelite, Opal, Diamond, Enamel, Yellow Gold, 18k Gold

Estate Diamond Engagement/Wedding Band GIA Certed 1.06ct VVS2 J Color Center!
Located in Methuen, MA
diamond is accented by approx. 0.74 ct. total weight of round brilliant cut diamonds, of SI clarity or
Category

2010s North American Engagement Rings

Materials

Diamond, 14k Gold

Pendant with Chain movable full-cut Diamonds Eye Catcher brand new Model
Located in Viena, Viena
Pendant in 750 white gold with movable full-cut diamonds totaling approx. 0.06 ct, W-CR (white
Category

2010s Italian Modern Pendant Necklaces

Materials

Diamond, 18k Gold, White Gold

Mattioli Puzzle Earrings 18k Gold White Diamonds and 11 Colored Pairs M Size
By Mattioli
Located in Bilbao, ES
inches Diamonds carat 0.34 ct earrings can be extended in lenght with adaptable gold extensors extra 300
Category

21st Century and Contemporary Italian Contemporary Hoop Earrings

Materials

White Diamond, 18k Gold, White Gold

Mattioli Puzzle Earrings 18 Karat Gold White Diamonds & 10 Colored Pairs S Size
By Mattioli
Located in Bilbao, ES
in white gold 8.80 grams, Diamonds carat 0.34 ct Also availbale in White & Yellow Gold and Brown
Category

21st Century and Contemporary Italian Contemporary Hoop Earrings

Materials

White Diamond, 18k Gold, Rose Gold

Mattioli Puzzle Earrings 18 Karat Gold White Diamonds and 11 Colored Pairs
By Mattioli
Located in Bilbao, ES
Puzzles Small Size Earrings in white gold 3.80 grams, Diamonds carat 0.34 ct The Mother of pearl pendant
Category

21st Century and Contemporary Italian Contemporary Hoop Earrings

Materials

White Diamond, 18k Gold, White Gold, Gold

Mattioli Puzzle Medium 18K Rose Gold Earrings Pink Enamel & 2 Pendants
By Mattioli
Located in Bilbao, ES
Earrings in rose gold and Diamonds carat 0.40 ct Weight 19.60 gr Measure 22x27mm or 0.75 inches
Category

21st Century and Contemporary Italian Contemporary Drop Earrings

Materials

Diamond, 18k Gold, White Gold, Rose Gold, Enamel

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20th Century French Cocktail Rings

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Materials

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Large coloured, aurora borealis paste 'cluster' earrings, Christian Dior, 1959
Large coloured, aurora borealis paste 'cluster' earrings, Christian Dior, 1959
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Amazing Coral Claw Ring
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Amazing Coral Claw Ring from the 1970's with a massive white coral bead set in an 18k textured claw formed mount set with tiny diamond chips throughout. Size 6. Bead 20mm. 1970's It...
Category

Vintage 1970s Italian Artisan Cocktail Rings

Materials

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Vintage Givenchy Gold Plated Modernist Pendant Necklace 1970s
By Givenchy
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Category

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Materials

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Category

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14 Karat Amethyst Gold Filigree Ring, 1920s
Located in Wallkill, NY
Stunning 14K Gold Filigree Amethyst 1920s Ring. Floral open work on both sides of the large amethyst stone. Stone measures 9.45 x 4.70 x 7.71 = 1.85 Carats. The ring is a size 6.75 a...
Category

Vintage 1920s Art Nouveau Solitaire Rings

Materials

Amethyst, Gold, 14k Gold, Yellow Gold

1990s Stephen DWECK Citrine Bronze ring New Never worn
By Stephen Dweck
Located in Wallkill, NY
Another fantastic early Stephen DWECK Citrine Bronze Ring New Old Stock. Size 6. Measures 1.13 at the top to bottom x .95 in wide. Faceted Citrine stone. Stephen Dweck has long drawn...
Category

1990s American Fashion Rings

Materials

Citrine, Base Metal

14 Karat Gold Ring Amethyst Claw Set Victorian
Located in Wallkill, NY
Victorian 8 claw prongs holding an amethyst stone set in 14K gold. Oval amethyst stone. The ring is a size 8.5 and can be sized by us or your jeweler. This is out of a massive collec...
Category

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Amethyst, Gold, 14k Gold, Yellow Gold

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Mattioli Puzzle Collection 18K white Gold Earrings w/ Diamonds & 3 Pendants
By Mattioli
Located in Bilbao, ES
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21st Century and Contemporary Contemporary Drop Earrings

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300ct Brilliant Cut Diamond Ring For Sale on 1stDibs

On 1stDibs, you can find the most appropriate 300ct brilliant cut diamond ring for your needs in our varied inventory. Each design created in this style — which was crafted with great care and often made from gold, 18k gold and white gold — can elevate any look. Our collection of these items for sale includes 13 vintage editions and 54 modern creations to choose from as well. If you’re looking for a 300ct brilliant cut diamond ring from a specific time period, our collection is diverse and broad-ranging, and you’ll find at least one that dates back to the 20th Century while another version may have been produced as recently as the 21st Century. Creating a 300ct brilliant cut diamond ring has been a part of the legacy of many jewelers, but those produced by Victor Mayer, Tiffany & Co. and Mattioli are consistently popular. Today, if you’re looking for a brilliant cut version of this piece and are unable to find the perfect match, our selection also includes round cut and cabochon alternatives. There aren’t many items for men if you’re seeking a 300ct brilliant cut diamond ring, as most of the options available are for women and unisex.

How Much is a 300ct Brilliant Cut Diamond Ring?

On average, a 300ct brilliant cut diamond ring at 1stDibs sells for $6,300, while they’re typically $720 on the low end and $51,778 for the highest priced versions of this item.