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3.45ct Sapphire 0.57ct Diamond Engagement Ring
3.45ct Sapphire 0.57ct Diamond Engagement Ring

3.45ct Sapphire 0.57ct Diamond Engagement Ring

Located in New York, NY

The color of the diamonds is G with VS clarity. The top of the ring measures 16mm by 13mm. The ring is stamped Pt900 3.456 0.57 and weighs 6.7 grams.

Category

20th Century Engagement Rings

Materials

Diamond, Sapphire, Platinum

2.58ct Emerald 2.30ct Diamond Ring
2.58ct Emerald 2.30ct Diamond Ring

2.58ct Emerald 2.30ct Diamond Ring

Located in New York, NY

The color of these diamonds is E-F with VVS clarity. The top of the ring measures 20mm by 19mm. The ring is stamped Pt900 2.58 2.30 and weighs 11.1 grams.

Category

20th Century Cocktail Rings

Materials

Diamond, Emerald, Platinum

Substantial Platinum 6.4ctw Oval Cabochon Opal & Diamond Cocktail Ring
Substantial Platinum 6.4ctw Oval Cabochon Opal & Diamond Cocktail Ring

Substantial Platinum 6.4ctw Oval Cabochon Opal & Diamond Cocktail Ring

Located in Montclair, NJ

Ring Measurements: 14.6mm (0.57") (north to south) - 17.7mm (0.69") (east to west, diamond to diamond), 2.4mm (bottom of the shank) Ring Height: 9.9mm rise off the finger Stamp: PT.9...

Category

21st Century and Contemporary Cocktail Rings

Materials

Diamond, Opal, Platinum

2.23ct Burma Ruby 1.08ct Diamond Ring
2.23ct Burma Ruby 1.08ct Diamond Ring

2.23ct Burma Ruby 1.08ct Diamond Ring

Located in New York, NY

The color of these diamonds is G-H with VS2 clarity. The top of the ring measures 12mm by 17mm. The ring is stamped Pt900 2.229 D1.08 and weighs 7.7 grams.

Category

20th Century Cocktail Rings

Materials

Diamond, Ruby, Platinum

GIA Certified 1.91ct Diamond Platinum Engagement Ring
GIA Certified 1.91ct Diamond Platinum Engagement Ring

GIA Certified 1.91ct Diamond Platinum Engagement Ring

Located in New York, NY

Crafted in luxurious platinum, the ring is stamped PT900, signifying high platinum purity.

Category

20th Century Engagement Rings

Materials

Diamond, Platinum

GIA Certified 11.57ct Sapphire 1.90ct Diamond Ring
GIA Certified 11.57ct Sapphire 1.90ct Diamond Ring

GIA Certified 11.57ct Sapphire 1.90ct Diamond Ring

Located in New York, NY

The color of these diamonds is F-G with VS clarity. The top of the ring measures 25mm by 22mm. The ring is stamped Pt900 11.57 D1.90 and weighs 15.7 grams.

Category

20th Century Cocktail Rings

Materials

Diamond, Sapphire, Platinum

Cat's Eye Chrysoberyl and Diamond Ring
Cat's Eye Chrysoberyl and Diamond Ring

Cat's Eye Chrysoberyl and Diamond Ring

Located in London, GB

Condition: Used (Very Good) Weight: 5.1 grams Ring Size: R (59) Band Width: 2.5mm - 2mm Chrysoberyl Dimensions: 6mm Total Diamond Weight: Approx. 0.28ct Marked: 'Pt900' Box: The Vint...

Category

Late 20th Century Engagement Rings

Materials

Chrysoberyl, Diamond, Platinum

GIA 1.29ct Burma Ruby 1.47ct Diamond Ring
GIA 1.29ct Burma Ruby 1.47ct Diamond Ring

GIA 1.29ct Burma Ruby 1.47ct Diamond Ring

Located in New York, NY

The color of these diamonds is F-G with VS clarity. The top of the ring measures 23mm by 17mm. The ring is stamped PT900 D1.47 R1.29 and weighs 10.5 grams.

Category

20th Century Cocktail Rings

Materials

Diamond, Ruby, Platinum

15.05ct Ceylon Sapphire 2.43ct Diamond Engagement Ring
15.05ct Ceylon Sapphire 2.43ct Diamond Engagement Ring

15.05ct Ceylon Sapphire 2.43ct Diamond Engagement Ring

Located in New York, NY

The color of these diamonds is E-F with VS2 clarity. The top of the ring measures 23.5mm by 19.5mm. The ring is stamped Pt900 and weighs 13.9 grams.

Category

20th Century Engagement Rings

Materials

Diamond, Sapphire, Platinum

Solid Platinum 2.8ctw Oval Cabochon Opal & Diamond Sides Classic Ring
Solid Platinum 2.8ctw Oval Cabochon Opal & Diamond Sides Classic Ring

Solid Platinum 2.8ctw Oval Cabochon Opal & Diamond Sides Classic Ring

Located in Montclair, NJ

Ring Measurements: 8.6mm (0.34") (north to south) - 16.5mm (0.65") (east to west, diamond to diamond), 2.1mm (bottom of the shank) Ring Height: 10.2mm rise off the finger Stamp: PT.9...

Category

21st Century and Contemporary Cocktail Rings

Materials

Diamond, Opal, Platinum

Solid Platinum High Quality 4.82ctw Opal & Diamond Ballerina Cocktail Ring
Solid Platinum High Quality 4.82ctw Opal & Diamond Ballerina Cocktail Ring

Solid Platinum High Quality 4.82ctw Opal & Diamond Ballerina Cocktail Ring

Located in Montclair, NJ

Ring Measurements: 17.3mm (0.68") (north to south) - 18.1mm (0.71") (east to west, diamond to diamond), 3.1mm (bottom of the shank) Ring Height: 11.6mm rise off the finger Stamp: PT....

Category

21st Century and Contemporary Cocktail Rings

Materials

Diamond, Opal, Platinum

Classic Style Platinum 3.19ctw Oval Cabochon Opal w/ Diamond Halo Ring
Classic Style Platinum 3.19ctw Oval Cabochon Opal w/ Diamond Halo Ring

Classic Style Platinum 3.19ctw Oval Cabochon Opal w/ Diamond Halo Ring

Located in Montclair, NJ

Ring Measurements: 14.9mm (0.58") (north to south) - 12.7mm (0.50") (east to west, diamond to diamond), 2.3mm (bottom of the shank) Ring Height: 9.6mm rise off the finger Stamp: PT.9...

Category

21st Century and Contemporary Neoclassical Solitaire Rings

Materials

Diamond, Opal, Platinum

Platinum High Quality 3.13ctw Opal Diamond Floral Ballerina Design Cocktail Ring
Platinum High Quality 3.13ctw Opal Diamond Floral Ballerina Design Cocktail Ring

Platinum High Quality 3.13ctw Opal Diamond Floral Ballerina Design Cocktail Ring

Located in Montclair, NJ

Ring Measurements: 19.9mm (0.78") (north to south) - 17.2mm (0.68") (east to west, diamond to diamond), 3.4mm (bottom of the shank) Ring Height: 9.1mm rise off the finger Stamp: PT.9...

Category

21st Century and Contemporary Cocktail Rings

Materials

Diamond, Fire Opal, Platinum

Large 10.48 Carat Diamond Platinum Ring
Large 10.48 Carat Diamond Platinum Ring

Large 10.48 Carat Diamond Platinum Ring

Located in New York, NY

The ring is stamped 'Pt900' and the diamond weight '10.48' and weighs 19.7 grams.

Category

20th Century Cluster Rings

Materials

Diamond, Platinum

3 Carat Sapphire Diamond Platinum Ring
3 Carat Sapphire Diamond Platinum Ring

3 Carat Sapphire Diamond Platinum Ring

Located in New York, NY

The sapphire is accentuated by sparkling baguette and marquise cut diamonds that weigh 2.56ct. graded H color with VS clarity. The ring is stamped Pt900 D2.56 S3.00 and weighs 15.5 g...

Category

20th Century Cluster Rings

Materials

Diamond, Sapphire, Platinum

Platinum 11.05ctw Large Orange Fiery Jelly Opal w/ Diamond Halo Ring
Platinum 11.05ctw Large Orange Fiery Jelly Opal w/ Diamond Halo Ring

Platinum 11.05ctw Large Orange Fiery Jelly Opal w/ Diamond Halo Ring

Located in Montclair, NJ

Ring Measurements: 24.2mm (0.95") (north to south) - 19mm (0.74") (east to west, diamond to diamond), 2.9mm (bottom of the shank) Ring Height: 12.3mm rise off the finger Stamp: PT.90...

Category

21st Century and Contemporary Cocktail Rings

Materials

Diamond, Opal, Platinum

1.04 Carat Emerald Diamond Ballerina Ring
1.04 Carat Emerald Diamond Ballerina Ring

1.04 Carat Emerald Diamond Ballerina Ring

Located in New York, NY

The emerald is accentuated by sparkling baguette cut diamonds that weigh 1.25ct. graded G color with VS clarity. The ring is stamped Pt900 E 1.04 1.25. It is currently size 5 3/4, ...

Category

20th Century Engagement Rings

Materials

Diamond, Emerald, Platinum

GIA Certified 4.11ct Sapphire 1.23ct Diamond Ring
GIA Certified 4.11ct Sapphire 1.23ct Diamond Ring

GIA Certified 4.11ct Sapphire 1.23ct Diamond Ring

Located in New York, NY

The color of these diamonds is H-I with VS2 clarity. The top of the ring measures 20mm by 18.5mm. The ring is stamped Pt900 4.11 1.13 and weighs 15 grams.

Category

20th Century Cocktail Rings

Materials

Sapphire, Platinum

AIGS Certified 3.12ct Sapphire 0.65ct Diamond Platinum Engagement Ring
AIGS Certified 3.12ct Sapphire 0.65ct Diamond Platinum Engagement Ring

AIGS Certified 3.12ct Sapphire 0.65ct Diamond Platinum Engagement Ring

Located in New York, NY

Expertly crafted in platinum, the setting offers both luxurious appeal and lasting durability, while the diamonds, graded H color with VS clarity, provide exceptional sparkle and ref...

Category

20th Century Engagement Rings

Materials

Diamond, Sapphire, Platinum

Platinum 2.48ctw Oval Orange Jelly Opal Bageutte & Round Diamond Modern Ring
Platinum 2.48ctw Oval Orange Jelly Opal Bageutte & Round Diamond Modern Ring

Platinum 2.48ctw Oval Orange Jelly Opal Bageutte & Round Diamond Modern Ring

Located in Montclair, NJ

Ring Measurements: 13.6mm (0.53") (north to south) - 3.3mm (bottom of the shank) Ring Height: 7.5mm rise off the finger Stamp: PT.900 - 1.48 - D1.00 Condition: Shows some light wear.

Category

21st Century and Contemporary Cocktail Rings

Materials

Diamond, Opal, Platinum

GIA Certified 5.66ct Sapphire 1.01ct Diamond Platinum Engagement Ring
GIA Certified 5.66ct Sapphire 1.01ct Diamond Platinum Engagement Ring

GIA Certified 5.66ct Sapphire 1.01ct Diamond Platinum Engagement Ring

Located in New York, NY

Expertly crafted in platinum, the ring is stamped Pt900 5.66 D1.01 and weighs 12.1 grams, reflecting both substantial quality and enduring durability.

Category

20th Century Engagement Rings

Materials

Diamond, Sapphire, Platinum

GIA 1.32ct Burma Ruby 0.38ct Diamond Engagement Ring
GIA 1.32ct Burma Ruby 0.38ct Diamond Engagement Ring

GIA 1.32ct Burma Ruby 0.38ct Diamond Engagement Ring

Located in New York, NY

The color of these diamonds is G with VS clarity. The top of the ring measures 8mm by 12mm. The ring is stamped Pt900 R1.32 D0.38 and weighs 5.2 grams.

Category

20th Century Engagement Rings

Materials

Diamond, Ruby, Platinum

Solid Platinum 7.23ctw Large Opal w/ Diamond Halo Substantial Cocktail Ring
Solid Platinum 7.23ctw Large Opal w/ Diamond Halo Substantial Cocktail Ring

Solid Platinum 7.23ctw Large Opal w/ Diamond Halo Substantial Cocktail Ring

Located in Montclair, NJ

Ring Measurements: 18.9mm (0.74") (north to south) - 16.3mm (0.64") (east to west), 2.8mm (bottom of the shank) Ring Height: 13.3mm rise off the finger Stamp: PT.900 - 5.95 - 1.28 Co...

Category

21st Century and Contemporary Cocktail Rings

Materials

Diamond, Opal, Platinum

Vintage Elegant Platinum GIA 2.99ctw Oval Sapphire & Diamond Ballerina Ring
Vintage Elegant Platinum GIA 2.99ctw Oval Sapphire & Diamond Ballerina Ring

Vintage Elegant Platinum GIA 2.99ctw Oval Sapphire & Diamond Ballerina Ring

Located in Montclair, NJ

Ring Width: 18.6mm (0.73") (top of the ring - north to south) - 15.6mm (0.61")(east to west) - 2.8mm (bottom of the shank) Ring Height: 8.5mm rise off the finger Signature: D0.86- 2....

Category

20th Century Cocktail Rings

Materials

Diamond, Sapphire, Platinum

Platinum 2.85ctw High Quality Oval Rich Blue Aquamarine and Diamond Ring
Platinum 2.85ctw High Quality Oval Rich Blue Aquamarine and Diamond Ring

Platinum 2.85ctw High Quality Oval Rich Blue Aquamarine and Diamond Ring

Located in Montclair, NJ

We can custom size this ring - Please contact us prior to purchase for sizing inquiries) Top of Ring Dimensions: 14.8mm (0.58") (top of the ring - north to south) - 13.1mm (0.51")(ea...

Category

21st Century and Contemporary Cocktail Rings

Materials

Aquamarine, Diamond, Platinum

GIA Certified 5.66ct Sapphire 1.01ct Diamond Platinum Engagement Ring
GIA Certified 5.66ct Sapphire 1.01ct Diamond Platinum Engagement Ring

GIA Certified 5.66ct Sapphire 1.01ct Diamond Platinum Engagement Ring

Located in New York, NY

Expertly crafted in platinum, the ring is stamped Pt900 5.66 D1.01 and weighs 12.1 grams, reflecting both substantial quality and enduring durability.

Category

20th Century Engagement Rings

Materials

Diamond, Sapphire, Platinum

Platinum 4.07ctw Trillion Tourmaline & Diamond Abstract Geometric Ring
Platinum 4.07ctw Trillion Tourmaline & Diamond Abstract Geometric Ring

Platinum 4.07ctw Trillion Tourmaline & Diamond Abstract Geometric Ring

Located in Montclair, NJ

--Stone(s):-- (1) Natural Genuine Tourmaline - Trillion Cut - Prong Set - Vibrant Green Color - 13x10.3mm - 3.92ct (exact) (10) Natural Genuine Diamonds - Round Brilliant Cut - Prong...

Category

21st Century and Contemporary Cocktail Rings

Materials

Diamond, Tourmaline, Platinum

GIA Certified 1.81 Carat Diamond Platinum Engagement Ring
GIA Certified 1.81 Carat Diamond Platinum Engagement Ring

GIA Certified 1.81 Carat Diamond Platinum Engagement Ring

Located in Beverly Hills, CA

Crafted by Campanelli & Pear and stamped "PT 900" and "C&P," this ring weighs 5.5 grams and is a size 6.

Category

21st Century and Contemporary Contemporary Engagement Rings

Materials

Diamond, Platinum

Unique Platinum Trapezoid Sapphire w/ Baguette & Round Diamond East West Ring
Unique Platinum Trapezoid Sapphire w/ Baguette & Round Diamond East West Ring

Unique Platinum Trapezoid Sapphire w/ Baguette & Round Diamond East West Ring

Located in Montclair, NJ

--Stone(s):-- (1) Natural Genuine Sapphire - Trapezoid Cut - Channel Set - Bright Royal Blue - Clean - 1.04ct (exact) (27) Natural Genuine Diamonds - 24 Round Brilliant w/ 3 Baguette...

Category

21st Century and Contemporary Cocktail Rings

Materials

Diamond, Sapphire, Platinum

Platinum 4.68ctw GIA Ceylon No Heat Sapphire Diamond Classic Contemporary Ring
Platinum 4.68ctw GIA Ceylon No Heat Sapphire Diamond Classic Contemporary Ring

Platinum 4.68ctw GIA Ceylon No Heat Sapphire Diamond Classic Contemporary Ring

Located in Montclair, NJ

Ring Width: 13.1mm (0.51") (top of the ring - north to south) - 10mm (0.39")(east to west, at the halo) - 2.9mm (bottom of the shank) Ring Height: 7.5mm rise off the finger Hallmark:...

Category

20th Century Cocktail Rings

Materials

Diamond, Sapphire, Platinum

Vintage Platinum 2.51ctw Oval Opal & Diamond Accents Classic Ring
Vintage Platinum 2.51ctw Oval Opal & Diamond Accents Classic Ring

Vintage Platinum 2.51ctw Oval Opal & Diamond Accents Classic Ring

Located in Montclair, NJ

Please contact us prior to purchase for sizing inquires.) Ring Measurements: 11.5mm (0.45") (north to south) - 13.4mm (0.52") (east to west, diamond to diamond), 2.4mm (bottom of the...

Category

20th Century Cocktail Rings

Materials

Diamond, Opal, Platinum

Sophia D. GIA Certified 3.08ct Engagement Ring
Sophia D. GIA Certified 3.08ct Engagement Ring

Sophia D. GIA Certified 3.08ct Engagement Ring

Located in New York, NY

The color of these diamonds is G-H with VS clarity. The ring is stamped Pt900 Sophia D. and weighs 4.8 grams.

Category

20th Century Engagement Rings

Materials

Diamond, Platinum

Vintage Platinum 4.88ctw Oval Opal & Diamond Halo Large Cocktail Ring
Vintage Platinum 4.88ctw Oval Opal & Diamond Halo Large Cocktail Ring

Vintage Platinum 4.88ctw Oval Opal & Diamond Halo Large Cocktail Ring

Located in Montclair, NJ

Ring Measurements: 22.1mm (0.87") (north to south) - 19.7mm (0.77") (east to west), 2.7mm (bottom of the shank) Ring Height: 11mm rise off the finger Stamp: PT.900 - 4.41 - 0.47 Cond...

Category

20th Century Cocktail Rings

Materials

Diamond, Opal, Platinum

Platinum & 18k Gold 3.74ctw Long Step Cut Watermelon Tourmaline & Diamond Ring
Platinum & 18k Gold 3.74ctw Long Step Cut Watermelon Tourmaline & Diamond Ring

Platinum & 18k Gold 3.74ctw Long Step Cut Watermelon Tourmaline & Diamond Ring

Located in Montclair, NJ

We can custom size this ring.) Ring Width: 22.5mm (0.88")(top of the ring) - 13.1mm (0.51")(east to west, diamond to diamond ) - 2.7mm (bottom of the shank) Ring Height: 8.5mm rise o...

Category

21st Century and Contemporary Cocktail Rings

Materials

Diamond, Tourmaline, Gold, 18k Gold, Yellow Gold, Platinum

1.88CTW Pear Shaped Diamond Engagement Ring in Platinum
1.88CTW Pear Shaped Diamond Engagement Ring in Platinum

1.88CTW Pear Shaped Diamond Engagement Ring in Platinum

Located in Webster, NY

Center Diamond Carat Weight: 1.52CT Center Diamond Cut: Pear Center Diamond Color: E Center Diamond Clarity: SI1 Accent Diamonds: Round cut; .36CTW Total Diamond Carat Weight: 1.88...

Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Platinum

Emerald and Diamond Platinum and Gold Ring
Emerald and Diamond Platinum and Gold Ring

Emerald and Diamond Platinum and Gold Ring

Located in Beverly Hills, CA

Marked with “E19.34, D5.57, PT900, K18,” this ring is perfect for those who appreciate exceptional gemstones and timeless elegance, making it a treasured addition to any fine jewelry...

Category

21st Century and Contemporary Solitaire Rings

Materials

Diamond, Emerald, Gold, 18k Gold, Platinum

GRS Certified 3.85ct Royal Blue Ceylon Sapphire Diamond Ring
GRS Certified 3.85ct Royal Blue Ceylon Sapphire Diamond Ring

GRS Certified 3.85ct Royal Blue Ceylon Sapphire Diamond Ring

Located in New York, NY

The color of these diamonds is G-H with VS clarity. The top of the ring measures 17.5mm by 17mm. The ring is stamped Pt900 3.85 D0.85 and weighs 10.4 grams.

Category

20th Century Cocktail Rings

Materials

Diamond, Sapphire, Platinum

3.27 Carat Sapphire Diamond Platinum Ballerina Ring
3.27 Carat Sapphire Diamond Platinum Ballerina Ring

3.27 Carat Sapphire Diamond Platinum Ballerina Ring

Located in New York, NY

It is currently size 7 1/4, and can easily be resized. The ring is stamped Pt900 3.276 3.05 and weighs 11.8 grams.

Category

20th Century Engagement Rings

Materials

Diamond, Sapphire, Blue Sapphire, Platinum

GIA Certified 2.51ct Sapphire 0.86ct Diamond Engagement Ring
GIA Certified 2.51ct Sapphire 0.86ct Diamond Engagement Ring

GIA Certified 2.51ct Sapphire 0.86ct Diamond Engagement Ring

Located in New York, NY

The color of these diamonds is G-H with VS clarity. The top of the ring measures 17mm by 14.5mm. The ring is stamped Pt900 D0.86 2.51 and weighs 6.3 grams.

Category

20th Century Engagement Rings

Materials

Diamond, Sapphire, Platinum

AIGS Certificate 1.74ct Sapphire 0.65ct Diamond Engagement Ring
AIGS Certificate 1.74ct Sapphire 0.65ct Diamond Engagement Ring

AIGS Certificate 1.74ct Sapphire 0.65ct Diamond Engagement Ring

Located in New York, NY

The color of these diamonds is G with VS clarity. The top of the ring measures 13mm by 10mm. The ring is stamped Pt900 1.74 and weighs 6.1 grams.

Category

20th Century Engagement Rings

Materials

Platinum

Solid Platinum 1.66ctw Oval Cabochon Cut Opal w/ Diamond Halo Classic Ring
Solid Platinum 1.66ctw Oval Cabochon Cut Opal w/ Diamond Halo Classic Ring

Solid Platinum 1.66ctw Oval Cabochon Cut Opal w/ Diamond Halo Classic Ring

Located in Montclair, NJ

Ring Measurements: 13.8mm (0.54") (north to south) - 12.2mm (0.48") (east to west), 2mm (bottom of the shank) Ring Height: 8.7mm rise off the finger Stamp: PT.900 - 1.29 - D0.37 Cond...

Category

21st Century and Contemporary Cocktail Rings

Materials

Diamond, Opal, Platinum

Mikimoto Platinum 8.1mm Akoya Pearl & Diamond Ring, Japan, Size 6.75
Mikimoto Platinum 8.1mm Akoya Pearl & Diamond Ring, Japan, Size 6.75

Mikimoto Platinum 8.1mm Akoya Pearl & Diamond Ring, Japan, Size 6.75

By Mikimoto

Located in Kobe, Hyogo

Item: Mikimoto Akoya Pearl Ring Stones: 8.1 mm Akoya Pearl / Diamonds Metal: Platinum 900 Ring Size: US SIZE 6.75 UK SIZE M 1/4 Internal Diameter: 16.85 mm Weight: 5.1 Grams Conditi...

Category

2010s Japanese Fashion Rings

Materials

Diamond, Pearl, Platinum

Platinum Bezel Orange Fire Jelly Opal White & Blue Diamond Wide Heavy Band Ring
Platinum Bezel Orange Fire Jelly Opal White & Blue Diamond Wide Heavy Band Ring

Platinum Bezel Orange Fire Jelly Opal White & Blue Diamond Wide Heavy Band Ring

Located in Montclair, NJ

Ring Measurements: 16.5mm (0.65") (north to south) - 3.5mm (bottom of the shank) Ring Height: 9.2mm rise off the finger Stamp: PT.900 - 4.35 - 0.26 Condition: Shows some light wear.

Category

21st Century and Contemporary Band Rings

Materials

Blue Diamond, Opal, Platinum

GIA Certified Pink Diamond Platinum Solitaire Ring
GIA Certified Pink Diamond Platinum Solitaire Ring

GIA Certified Pink Diamond Platinum Solitaire Ring

By HYT Jewelry

Located in Hong Kong, HK

- Centre Diamond, GIA certified Oval shape Pink Diamond 1.18 carats (color Fancy Brownish Pink, clarity VS2, certificate GIA 5192170147) - Round Brilliant Cut White Diamonds total ...

Category

2010s Hong Kong Contemporary Solitaire Rings

Materials

Diamond, White Diamond, Pink Diamond, Gold, 18k Gold, Rose Gold, Platinum

Platinum GIA 2.55ctw Pear Ruby & Diamond Double Halo Ballerina Cocktail Ring
Platinum GIA 2.55ctw Pear Ruby & Diamond Double Halo Ballerina Cocktail Ring

Platinum GIA 2.55ctw Pear Ruby & Diamond Double Halo Ballerina Cocktail Ring

Located in Montclair, NJ

--Stone(s):-- (1) Natural Genuine Ruby - Pear Cut - Prong Set - Vivid Red Color - 1.18ct (exact stamped) ** See Certification Details Below for Complete Info ** Numerous Natural Genu...

Category

21st Century and Contemporary Cocktail Rings

Materials

Diamond, Ruby, Platinum

Platinum Oval Ruby & Diamond Halo Dainty Cluster Cocktail Ring
Platinum Oval Ruby & Diamond Halo Dainty Cluster Cocktail Ring

Platinum Oval Ruby & Diamond Halo Dainty Cluster Cocktail Ring

Located in Montclair, NJ

--Stone(s):-- (1) Natural Genuine Ruby - Oval Cut - Prong Set - Vivid Red Color - 5.49 x 4.44mm - 0.56ct (exact) (10) Natural Genuine Diamonds - Round Brilliant Cut - Prong Set - Nic...

Category

21st Century and Contemporary Cluster Rings

Materials

Diamond, Ruby, Platinum

Vintage Platinum GIA 3.23ctw Cushion Ruby Baguette Diamond Ballerina Ring
Vintage Platinum GIA 3.23ctw Cushion Ruby Baguette Diamond Ballerina Ring

Vintage Platinum GIA 3.23ctw Cushion Ruby Baguette Diamond Ballerina Ring

Located in Montclair, NJ

--Stone(s):-- (1) Natural Genuine Ruby - Cushion Cut - Prong Set - Rich Red Color - Heated - 1.63ct (exact) ** See Certification Details Below for Complete Info ** Natural Genuine Di...

Category

20th Century Cocktail Rings

Materials

Diamond, Ruby, Platinum

Platinum 4.85ctw Cabochon Vivid Star Sapphire & Diamond Sides Ring
Platinum 4.85ctw Cabochon Vivid Star Sapphire & Diamond Sides Ring

Platinum 4.85ctw Cabochon Vivid Star Sapphire & Diamond Sides Ring

Located in Montclair, NJ

--Stone(s):-- (1) Natural Genuine Star Sapphire - Oval Cabochon Cut - Prong Set - Slightly Grayish Blue Color - Vivid 6 legged Star - 9.7x9.4mm - 4.75ct (exact) (6) Natural Genuine D...

Category

21st Century and Contemporary Cocktail Rings

Materials

Diamond, Sapphire, Platinum

Solid Platinum 3.92ctw Rectangular Green Tourmaline & Baguette Diamond Ring
Solid Platinum 3.92ctw Rectangular Green Tourmaline & Baguette Diamond Ring

Solid Platinum 3.92ctw Rectangular Green Tourmaline & Baguette Diamond Ring

Located in Montclair, NJ

--Stone(s):-- (1) Natural Genuine Tourmaline - Rectangular Step Cut - Prong Set - Fiery Green Color - 8.2x7.3mm -2.67ct (exact) Numerous Natural Genuine Diamonds - Baguette Cut - Cha...

Category

21st Century and Contemporary Cocktail Rings

Materials

Diamond, Tourmaline, Platinum

Platinum 4.77ctw Long Emerald Cut Tourmaline & Diamond Halo Ring
Platinum 4.77ctw Long Emerald Cut Tourmaline & Diamond Halo Ring

Platinum 4.77ctw Long Emerald Cut Tourmaline & Diamond Halo Ring

Located in Montclair, NJ

--Stone(s):-- (1) Natural Genuine Tourmaline - Long Emerald Cut - Prong Set - Pink Color - 13.2x6.9mm - 4.00ct (exact) Numerous Natural Genuine Diamonds - Round Brilliant Cut - Prong...

Category

21st Century and Contemporary Cocktail Rings

Materials

Diamond, Tourmaline, Platinum

IGI Platinum 0.66 ct Colombia Muzo Green Emerald  Engagement Ring
IGI Platinum 0.66 ct Colombia Muzo Green Emerald  Engagement Ring

IGI Platinum 0.66 ct Colombia Muzo Green Emerald Engagement Ring

Located in Kaohsiung City, TW

*IGI Platinum 0.66 ct Colombia Muzo Green Emerald Engagement Ring* IGI-certified natural Muzo green Colombia emerald with great color and fire luster weighing 0.66 ct set on the PT...

Category

21st Century and Contemporary Taiwanese Contemporary Engagement Rings

Materials

Diamond, Emerald, Gold, White Gold, Platinum

Platinum 1.29 Carat Vivid Green Zambian Emerald and Diamond Wedding Ring
Platinum 1.29 Carat Vivid Green Zambian Emerald and Diamond Wedding Ring

Platinum 1.29 Carat Vivid Green Zambian Emerald and Diamond Wedding Ring

By Malpani Jewels

Located in Hung Hom, HK

Set in Platinum ( PT 900 ) , the ring has 1.29 carat of vivid green Zambian Emerald and 1.07 carat of D color VVS clarity diamond.

Category

2010s Japanese Art Nouveau Bridal Rings

Materials

Diamond, White Diamond, Emerald, Platinum

Platinum GIA Bright Orange Oval Sapphire Princess & Round Diamond 3.13ctw Ring
Platinum GIA Bright Orange Oval Sapphire Princess & Round Diamond 3.13ctw Ring

Platinum GIA Bright Orange Oval Sapphire Princess & Round Diamond 3.13ctw Ring

Located in Montclair, NJ

Ring Measurements: 13.1mm (0.51") (top of the ring - north to south), 13.3mm (0.52")(east to west, princess diamond to princess diamond ) - 2.1mm (bottom of the shank) Ring Height: 7...

Category

21st Century and Contemporary Cocktail Rings

Materials

Diamond, White Diamond, Yellow Sapphire, Platinum

12.86 Carat Lavender A Jade & Diamond Platinum Cocktail Ring
12.86 Carat Lavender A Jade & Diamond Platinum Cocktail Ring

12.86 Carat Lavender A Jade & Diamond Platinum Cocktail Ring

Located in Miami, FL

Details: Item Type: Cocktail Ring Metal: PT900 Platinum Size: 7.5 (resize available upon request) Weight: 8.94 grams Center Stone Details: Type: Type A Lavender Jade Carat: 12.86 Co...

Category

21st Century and Contemporary Contemporary Cocktail Rings

Materials

Diamond, Jade, Platinum

Antique Jadeite Jade & Diamond Halo Platinum 900 Statement Ring
Antique Jadeite Jade & Diamond Halo Platinum 900 Statement Ring

Antique Jadeite Jade & Diamond Halo Platinum 900 Statement Ring

Located in Miami, FL

Crafted in platinum 900 with a straight shank. 11.02 grams and ring size 6, adjustable. Details: Item Type: Statement Ring Metal: Platinum (PT900) Weight: 11.02 grams Ring Size: 6 (...

Category

Vintage 1920s Art Deco Fashion Rings

Materials

Diamond, Jade, Platinum

18k Yellow Gold & Platinum 1.17ctw Bezel Trillion Ruby & Carre Cut Diamond Ring
18k Yellow Gold & Platinum 1.17ctw Bezel Trillion Ruby & Carre Cut Diamond Ring

18k Yellow Gold & Platinum 1.17ctw Bezel Trillion Ruby & Carre Cut Diamond Ring

Located in Montclair, NJ

--Stone(s):-- (1) Natural Genuine Ruby - Trillion Cut - Bezel Set - Deep Red Color - 0.62ct (exact) (16) Natural Genuine Diamonds - Calibre Carre Cut - Channel Set - Nice Brilliant W...

Category

21st Century and Contemporary Cocktail Rings

Materials

Diamond, Ruby, Gold, 18k Gold, Yellow Gold, Platinum

Platinum GIA 1.61ctw Colombian Emerald Solitaire w/ Diamond Engagement Ring
Platinum GIA 1.61ctw Colombian Emerald Solitaire w/ Diamond Engagement Ring

Platinum GIA 1.61ctw Colombian Emerald Solitaire w/ Diamond Engagement Ring

Located in Montclair, NJ

--Stone(s):-- (1) Natural Genuine Emerald - Octagonal Step Cut - Prong Set - Green Color - Colombian - 1.36ct (exact) ** See Certification Details Below for Complete Info ** (8) Nat...

Category

21st Century and Contemporary Solitaire Rings

Materials

Diamond, Emerald, Platinum

7.15 Carat Oval Aquamarine & Diamond Floral Filigree Platinum Ring
7.15 Carat Oval Aquamarine & Diamond Floral Filigree Platinum Ring

7.15 Carat Oval Aquamarine & Diamond Floral Filigree Platinum Ring

Located in Miami, FL

Crafted in platinum, and designed with an intricate floral filigree back. Ring size 6, adjustable. Details: Item Type: Engagement Ring Metal: PT900 (Platinum) Size: 6 (adjustable) W...

Category

21st Century and Contemporary Modern Engagement Rings

Materials

Aquamarine, Diamond, Platinum

Platinum Victorian Akoya Pearl Diamond Cocktail Ring, 1980s, USA
Platinum Victorian Akoya Pearl Diamond Cocktail Ring, 1980s, USA

Platinum Victorian Akoya Pearl Diamond Cocktail Ring, 1980s, USA

Located in Palm Desert, CA

Beneath the pearl, a raised Victorian-style gallery reveals intricate scrollwork, adding depth, character, and a sense of antique charm to the design. Stamped “Pt 900” inside the ban...

Category

Vintage 1980s American Retro Cocktail Rings

Materials

Diamond, Pearl, Platinum

Platinum GIA 3.66ctw Cabochon Colombian Emerald & Diamond Bubble Sides Ring
Platinum GIA 3.66ctw Cabochon Colombian Emerald & Diamond Bubble Sides Ring

Platinum GIA 3.66ctw Cabochon Colombian Emerald & Diamond Bubble Sides Ring

Located in Montclair, NJ

--Stone(s):-- (1) Natural Genuine Emerald - Oval Double Cabochon Cut - Prong Set - Bright Green Color - Colombian - Clarity Enhanced F2 -2.91ct (exact) ** See Certification Details B...

Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Emerald, Platinum

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Pt900 Ring For Sale on 1stDibs

You are likely to find exactly the pt900 ring you’re looking for on 1stDibs, as there is a broad range for sale. Frequently made of Platinum, Gold and 18k Gold, this item was constructed with great care. In our selection of items, you can find a vintage example as well as a contemporary version. If you’re looking for a pt900 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. A pt900 ring from Malpani Jewels, Noriko Matsuzaki and Tsutomu Matsuzaki — each of whom created a beautiful version of this treasured accessory — is worth considering. Today, if you’re looking for an oval cut version of this piece and are unable to find the perfect match, our selection also includes round cut and cabochon alternatives. When shopping for a pt900 ring, you’ll find that there are less available pieces for unisex or men today than there are for women.

How Much is a Pt900 Ring?

The price for a pt900 ring starts at $700 and tops out at $225,000 with these rings, on average, selling for $3,450.

The Legacy of Diamond in Jewelry Design

Antique diamond rings, diamond tiaras and dazzling vintage diamond earrings are on the wish lists of every lover of fine jewelry. And diamonds and diamond jewelry are primarily associated with storybook engagements and red-carpet grand entrances — indeed, this ultra-cherished gemstone has a dramatic history on its hands.

From “A Diamond Is Forever” to “Diamonds Are a Girl’s Best Friend,” pop culture has ingrained in our minds that diamonds are the most desired, the most lasting and the most valuable gemstone. But what makes the diamond so special? Each stone — whether it’s rubies, sapphires or another stone — is unique and important in its own right. April babies might claim diamonds for themselves, but just about everyone wants this kind of sparkle in their lives!

There are several factors that set diamonds apart from other stones, and these points are important to our gem education.

Diamonds are minerals. They are made up of almost entirely of carbon (carbon comprises 99.95 percent; the remainder consists of various trace elements). Diamonds are the hardest gemstones, ranking number 10 on the Mohs Hardness Scale. Even its name, diamond, is rooted in the Greek adamas, or unconquerable. The only object that can scratch a diamond is another diamond. Diamonds are formed deep within the earth at very high temperatures (1,652–2,372 degrees Fahrenheit at depths between 90 and 120 miles beneath the earth’s surface) and are carried up by volcanic activity. Diamonds are quite rare, according to the Gemological Institute of America, and only 30 percent of all the diamonds mined in the world are gem quality.

In the 1950s, the Gemological Institute of America developed the 4Cs grading system to classify diamonds: clarity, color, cut and carat weight. Not all diamonds are created equal (there are diamonds, and then there are diamonds). The value of the diamond depends on the clarity (flawless diamonds are very rare but a diamond's value decreases if there are many blemishes or inclusions), color (the less color the higher the grade), cut (how the diamond’s facets catch the light, certain cuts of diamonds show off the stone better than others) and carat weight (the bigger, the better).

When you start shopping for a diamond engagement ring, always prioritize the cut, which plays the largest role in the diamond's beauty (taking the time to clean your diamond ring at least every six months or so plays a role in maintaining said beauty). And on 1stDibs, a range of buying guides can be found for those in the market for antique engagement ringsvintage engagement rings or Art Deco engagement rings

Shop antique and vintage diamond rings, diamond necklaces and other extraordinary diamond jewelry on 1stDibs.  

Finding the Right Rings for You

Antique and vintage rings have long held a special place in the hearts of fine jewelry lovers all over the world.

No matter their origin or specific characteristics, rings are timeless, versatile accessories. They’ve carried deep meaning since at least the Middle Ages, when diamond rings symbolized strength and other kinds of rings were worn to signify romantic feelings or to denote an affiliation with a religious order. Rings have also forever been emblematic of eternity.

Over time, rings have frequently taken the form of serpents, which have long been associated with eternal life, health and renewal. Italian luxury jewelry house Bulgari has become famous for its widely loved Serpenti motif, for example, and its Serpenti ring, like the other accessories in the collection, began as an homage to jewelry of the Roman and Hellenistic eras. The serpent is now a popular motif in fine jewelry. Jewelry devotees have long pined for rings adorned with reptiles, thanks to antique Victorian rings — well, specifically, Queen Victoria’s illustrious engagement ring, which took the form of a gold snake set with rubies, diamonds and an emerald (her birthstone). Designs for Victorian-era engagement rings often featured repoussé work and chasing, in which patterns are hammered into the metal.

Engagement rings, which are reliably intimidating to shop for, are still widely recognized as symbols of love and commitment. On 1stDibs, a range of buying guides can be found for those in the market for antique engagement ringsvintage engagement rings or Art Deco engagement rings

The most collectible antique engagement rings and vintage engagement rings are those from the Victorian, Edwardian and Art Deco eras. Named for the monarchies of the four King Georges, who in succession ruled England starting in 1714 (plus King William’s reign), antique Georgian rings, be they engagement rings or otherwise, are also coveted by collectors. Pearls, along with colored gemstones like garnets, rubies and sapphires, were widely used in Georgian jewelry. The late-1700s paste jewelry was a predecessor to what we now call fashion or costume jewelry

The Art Nouveau movement (1880–1910) brought with it rings inspired by the natural world. Antique Art Nouveau rings might feature depictions of winged insects and fauna as well as women, who were simultaneously eroticized and romanticized, frequently with long flowing hair. Art Deco jewelry, on the other hand, which originated during the 1920s and ’30s, is by and large “white jewelry.” White metals, primarily platinum, were favored over yellow gold in the design of antique Art Deco rings and other accessories as well as geometric motifs, with women drawn to the era’s dazzling cocktail rings in particular.

Whether you’re hunting down a chunky classic for a Prohibition-themed cocktail party or seeking a clean contemporary design to complement your casual ensemble, find an exquisite collection of antique, new and vintage rings on 1stDibs.