Unknown Jewelry
954
124,487
8,721
to
12,648
87,562
32,725
130
100
58
890
8,788
56,962
66,560
2,332
1,673
4,060
2,658
2,053
3,428
3,481
3,425
4,529
2,627
475
147,503
5,257
5,239
4,548
4,524
81,372
49,674
2,162
101,976
42,688
39,911
37,450
34,502
86,380
16,318
10,661
10,203
10,799
32169
12577
8527
8093
5704
to
16,332
14,597
14,537
7,081
6,683
2,854
2,199
1,694
720
622
266
235
174
153
83
78
61
6
Creator: Unknown
Vintage 18k Lapis Lazuli Diamond Pendant Brooch Pin Brutalist Solid Yellow Gold
Located in Greer, SC
Exquisite vintage 18k lapis lazuli convertible pendant / brooch, adorned with dazzling diamonds. This brutalist style pendant is a great example of mid century art and craftsmanship....
Category
Mid-20th Century Unknown Modernist Unknown Jewelry
Materials
Diamond, Lapis Lazuli, Yellow Gold
14 Karat White Gold Princess Cut Channel Set Diamond Band
Located in Scottsdale, AZ
Designer: Custom
Material: 14K white gold
Diamonds: 11 princess cut = 0.88cttw
Color: I
Clarity: I1
Size: 5.5 sizing available
Dimensions: ring top measures 3.6mm in width
Weight: 2...
Category
21st Century and Contemporary Unknown Jewelry
Materials
Diamond, 14k Gold, White Gold
Contemporary 40.32 CTW Sapphire Diamond 18 Karat White Gold Floral Necklace
Located in Philadelphia, PA
Comprised of hinged basket links featuring cushion cut sapphires prong set throughout
Weighing approximately 30.96 carats total - transparent medium blue in color
Alternating with cl...
Category
21st Century and Contemporary Unknown Jewelry
Materials
Diamond, Sapphire, Gold, 18k Gold, White Gold
1.18ct Royal Blue Sapphire Pair
Located in Christchurch, NZ
The Sapphire Merchant presents this captivating 1.18ct Natural Royal Blue Sapphire Pair to 1stDibs. Each gemstone weighs approx 0.59 carats, pres...
Category
2010s Sri Lankan Unknown Jewelry
Materials
Blue Sapphire
Antique Victorian Gold Fancy Link Long Chain with Hinged Swivel Bale
Located in New York, NY
An antique Victorian period gold long guard chain comprised of handmade, interlocking reeded and beaded links, in 15k. England. (French swivel hinged bale in 18k.) Gorgeously subst...
Category
1870s English Victorian Antique Unknown Jewelry
Materials
Gold, 15k Gold, 18k Gold
Vintage Natural 1.20 Carat Ruby & Diamond Cocktail Ring in 14k yellow gold
Located in Miami, FL
Embrace timeless elegance with our Vintage Ruby and Diamond Ring, crafted from luxurious 14k yellow gold. Featuring a captivating 1.20 carat total round-shaped ruby and accentuated b...
Category
2010s European Art Deco Unknown Jewelry
Materials
Diamond, Ruby, Gold, 14k Gold, Yellow Gold
14 Karat White Gold Princess Cut Channel Set Diamond band
Located in Scottsdale, AZ
Designer: Custom
Material: 14K white gold
Diamonds: 16 princess cut = 0.56cttw
Color: H
Clarity: SI1-2
Size: 7 sizing available
Dimensions: ring top measures 3.1mm in width
Weight: ...
Category
21st Century and Contemporary Unknown Jewelry
Materials
Diamond, 14k Gold, White Gold
Antique and Contemporary 1.24Ct Diamond and 18k Yellow Gold Trilogy Ring
Located in Jesmond, Newcastle Upon Tyne
A fine and impressive 1.24 carat diamond and 18 karat yellow gold, 18 karat white gold claw set trilogy ring; part of our three stone engagement rings collection.
This fine and impr...
Category
Early 2000s Unknown Jewelry
Materials
Diamond, White Gold, Yellow Gold
Antique 1.60ct Diamond and 18k Yellow Gold Cross Pendant
Located in Jesmond, Newcastle Upon Tyne
A stunning, fine and impressive antique 1920's 1.60 carat diamond, 18ct yellow gold and platinum set cross pendant; part of our diverse antique diamond pendant collections.
This stu...
Category
1920s Vintage Unknown Jewelry
Materials
Diamond, 18k Gold, Yellow Gold, Platinum
Victorian 0.32 Carat Natural Emerald Pendant For Womens
Located in Miami, FL
Discover timeless elegance with our Victorian Fine Jewelry Emerald Pendant, crafted from radiant 14k yellow gold. Adorned with a stunning 0.32 carat round-shaped emerald, this pendan...
Category
21st Century and Contemporary European Victorian Unknown Jewelry
Materials
Emerald, Gold, 14k Gold, Yellow Gold
Victorian Ruby and Diamond Horseshoe and Riding Crop Locket
Located in London, GB
Here we have a fabulous gem set locket dating back to the Victorian period. This circular piece has been crafted from a rich 18ct yellow gold and showcases a rose cut diamond set hor...
Category
Late 19th Century Victorian Antique Unknown Jewelry
Materials
Diamond, Ruby, 18k Gold, Yellow Gold
Antique Art Deco Platinum Old European Diamond Filigree Shield Ring
Located in Great Neck, NY
Beautiful Antique Art Deco Platinum Old European Diamond Filigree Shield Ring. This incredible art deco diamond shield ring is crafted in ...
Category
1920s Art Deco Vintage Unknown Jewelry
Materials
Diamond, Platinum
18k Baguette and Marquise Cut Diamond Navette Ring
Located in New York, NY
Crafted from luxurious 18k white gold, this stunning ring boasts a 6.25 size. Adorned with a sparkling 0.48 carat Marquise Cut diamond center and 0.95 carats of diamond accents, this...
Category
21st Century and Contemporary Unknown Jewelry
Materials
Diamond, 18k Gold, White Gold
Ladies 14K White Gold Baguette & Round Diamond Rectangular Pendant Necklace
Located in Houston, TX
Gender: Ladies
Metal Type: White Gold
Length: 20.00 inches
Weight: 4.19 grams
One ladies custom-made polished 14K white gold single strand collar, diamond necklace. The metal wa...
Category
21st Century and Contemporary Unknown Jewelry
Materials
Diamond, Gold, 14k Gold, White Gold
10K Yellow Gold 15.08ct Pave Diamond Cuban Link Chain Necklace
Located in Houston, TX
Metal Type: 10K Yellow Gold
Length: 22.00 inches
Width: 9.00 mm
Weight: 120.52 grams
One custom-made polished 10K yellow gold diamond Cuban link chain. The metal was tested and d...
Category
21st Century and Contemporary Unknown Jewelry
Materials
Diamond, Gold, 10k Gold, Yellow Gold
Gold Flower and Pearl Pendant.
Located in BARCELONA, ES
Gold Pendant for woman : 117x Brilliant Cut Diamonds with a total weight of 0,60 cts. in G/VS quality : 18 kt. White Gold : 4,10 grams : 9mm Australian Natural Pearl : Brand new prod...
Category
21st Century and Contemporary European Unknown Jewelry
Antique Art Deco Platinum Engraved Certified Wedding Band - Size 6
Located in Great Neck, NY
Beautiful Antique Art Deco Platinum Engraved Certified Wedding Band - Size 6. This gorgeous antique art deco wedding band is crafted in p...
Category
1920s Art Deco Vintage Unknown Jewelry
Materials
Platinum
14 Karat Yellow Gold Square Diamond Huggie Hoop Earrings
Located in Scottsdale, AZ
Designer: custom design
Material: 14K yellow gold
Diamonds: 10 round cut = 0.29cttw
Color: H
Clarity: SI1-2
Dimensions: earrings measure 15.6mm
Weight: 3.75 grams
Category
21st Century and Contemporary Unknown Jewelry
Materials
Diamond, 14k Gold, Yellow Gold
Vintage Circa 1980s 18k Gold Natural Emerald And Sapphire Decorated Ring
Located in Fatih/İstanbul, 34
In very good condition.
Total weight is 11.4 grams.
Totally is emerald 0.80 ct.
Totally is sapphire 1.20 ct.
Ring size is US 6 (We offer free resizing)
We can make any size.
Box is n...
Category
1980s European Retro Vintage Unknown Jewelry
Materials
Emerald, Sapphire, 18k Gold
Vintage 1998 Opal Diamond 18 Karat Gold Scrolling Three Stone Ring
Located in Philadelphia, PA
Featuring three oval shaped opal cabochons prong set east to west
Graduated and ranging in size from 5.0 x 7.0 mm to 6.0 x 9.0 mm
Translucent white in body color with strong blue a...
Category
1990s Victorian Unknown Jewelry
Materials
Diamond, Opal, Gold, 18k Gold, Yellow Gold
Pendientes con Perla Barroca y Diamantes
Located in BARCELONA, ES
Pendientes de Oro Blanco para mujer 12x Diamantes en talla Brillante con peso total aproximado de 1,62 cts. en calidad G/SI 2x Perlas Barrocas Naturales de 8mm. Cierre Omega Oro ...
Category
21st Century and Contemporary European Unknown Jewelry
Vintage Circa 1990s 18k Gold Natural Diamond And Australian Opal Decorated Ring
Located in Fatih/İstanbul, 34
In very good condition.
Total weight is 7.1 grams.
Totally is diamond 0.25 ct.
The diamond is has G color and vvs-vs clarity.
Ring size is US 6.5 (We offer free resizing)
We can make...
Category
1990s European Retro Unknown Jewelry
Materials
Diamond, Opal, 18k Gold
Multicolor Sapphires Band Ring With Diamonds 6.52 Carats 18K Gold
Located in Laguna Niguel, CA
It comes with the Gemological Appraisal by GIA GG/AJP
All Gemstones are Natural
Multicolor Sapphires = 6.17 Carats
Diamonds = 0.35 Carats
Metal: 18K Yellow Gold
Ring Size: 7* US
*It ...
Category
21st Century and Contemporary Contemporary Unknown Jewelry
Materials
Diamond, White Diamond, Sapphire, Blue Sapphire, Yellow Sapphire, Green ...
Vintage Circa 1980s 14k Gold Natural Diamond Decorated Engagement Ring
Located in Fatih/İstanbul, 34
In very good condition.
Totally is main old cut diamond 0.64.
Totally is side diamond 0.22 ct.
The diamond is has Light yellow color and vs-s1 clarity.
Ring size is US 5.2 (We offer ...
Category
1980s European Retro Vintage Unknown Jewelry
Materials
Diamond, 14k Gold
Vintage Circa 1990s 18k Gold Natural Diamond And Sapphire Rabbit Brooch
Located in Fatih/İstanbul, 34
In very good condition.
Total weight is 9.5 grams.
Totally is sapphire 0.50 ct.
Totally is diamond 0.12 ct.
The diamond is has G-H color and vs-s1-s2 clarity.
Please contact for any ...
Category
1990s European Retro Unknown Jewelry
Materials
Diamond, Sapphire, 18k Gold
14 Karat Two Tone Multi-Gemstone and Diamond Circle Pendant Necklace
Located in Scottsdale, AZ
Designer: custom
Material: 14K Two tone gold
Diamond: round brilliant cut = 1.51cttw
Color: G
Clarity: VS-SI1
Multi-Gemstone: 20 marquise cut = 9.10cttw
Dimensions: necklace measure...
Category
21st Century and Contemporary Unknown Jewelry
Materials
Diamond, Multi-gemstone, 14k Gold, White Gold, Yellow Gold
Oval sapphire and triangle diamonds ring
Located in PARIS, FR
Stones: Oval sapphire: 1.60 cts and 2 triangle diamonds: 0.60 ct
Material: 18k yellow gold
Weight: 3.5g
Period: Recent vintage style
Size: 52 (free sizing)
Certificate
Ref. : 25551
Category
Early 2000s Unknown Jewelry
Materials
Diamond, Sapphire, 18k Gold
21.00CT Star Sapphire/ Diamond Men's Ring set in 14K White Gold
Located in New York, NY
Embrace the opportunity to own a piece of jewelry that is as unique as your dreams with our translucent 21.00ct oval-shaped Star Sapphire. Measuring 20 X 16 mm. With a cabochon cut t...
Category
21st Century and Contemporary American Aesthetic Movement Unknown Jewelry
Materials
Diamond, Star Sapphire, 14k Gold, White Gold
Vintage French Lapis Lazuli 18 Karat Yellow Gold Bug Brooch
Located in Philadelphia, PA
Designed as a stylized insect with four stipple textured wings and a fluted torso
Featuring a carved twist motif lapis lazuli lower body measuring 8.0 x 19.0 mm
Medium ultramarine b...
Category
1970s Vintage Unknown Jewelry
Materials
Lapis Lazuli, Gold, 18k Gold, Yellow Gold
Antique Victorian 15K Gold & Silver 10.8ctw Old Cut Diamond Pendant & Brooch
Located in Staines-Upon-Thames, GB
A Victorian diamond, silver, and yellow gold brooch and pendant, comprising one large old mine cut diamond, fifty-two smaller old mine cut diamonds, and fifteen rose cut diamonds, se...
Category
1870s British Victorian Antique Unknown Jewelry
Materials
Diamond, 15k Gold, Silver
Vintage Circa 1980s 14k Gold Natural Diamond Decorated Earring
Located in Fatih/İstanbul, 34
In very good condition.
Total weight is 3.5 grams.
Totally is diamond 0.35 ct.
The diamond is has H color and vs clarity.
Box is not included.
Please contact for any questions.
Category
1980s European Retro Vintage Unknown Jewelry
Materials
Diamond, 14k Gold
1990's 2.71 CTW Asscher Cut Sapphire Diamond 18 Karat White Gold Ring GIA
Located in Philadelphia, PA
Centering an asscher cut sapphire weighing 1.95 carats total - transparent dark blue in color
Natural Thai in origin - set with split prongs in basket and flanked by stepped shoulde...
Category
1990s Contemporary Unknown Jewelry
Materials
Sapphire, Gold, 18k Gold, White Gold
Van cleef and Arpels Vintage Diamond Twist Bangle
Located in London, GB
Here we have a wonderful diamond bracelet from the world renowned jewellery designer Van Cleef and Arpels. The bangle features 1.50 carats of perfectly matched round brilliant cut di...
Category
20th Century Unknown Jewelry
Materials
Diamond, 18k Gold
Diamond Tennis Bracelet
Located in New York, NY
Diamond Tennis Bracelet
White gold tennis bracelet set with 45 round cut diamonds.
Approximate Diamond Weight: 5.80 Carats
Approximate Measurements: 7.5" long
Metal type: 18 Kara...
Category
20th Century Unknown Modern Unknown Jewelry
Materials
Diamond, White Gold
Tank Bracelet 18 Carat Yellow Gold, circa 1940
Located in Paris, FR
Great and rare Tank bracelet in 18-carat (750/ooo) yellow gold with large articulated geometric links.
Ratchet clasp and double safety figure.
French Work from the 1940s. Imposing ...
Category
1940s French Retro Vintage Unknown Jewelry
Materials
18k Gold, Yellow Gold
1.17 Carat Diamond Set Open Link Bracelet 18 Karat In Stock
Located in Boca Raton, FL
18k Two-Tone Gold 1.17ct Diamond Set Open Link Bracelet
Material: 18k White & Yellow Gold
Diamond Details: There are approximately 1.17 carats of round brilliant-cut diamonds
Diamond...
Category
21st Century and Contemporary American Modern Unknown Jewelry
Materials
Diamond, Gold, 18k Gold, White Gold, Yellow Gold
Dome Ring 18K Rose Gold
Located in Geneva, CH
18K Rose Gold Dome Ring with Diamonds - Timeless Elegance with Free Shipping and Gift Wrap
Elevate your jewelry ensemble with our exquisite 18-carat rose gold dome ring. A masterpie...
Category
Early 2000s Unknown Jewelry
Materials
Diamond, Rose Gold
14 Karat White Gold Emerald Cut Diamond Eternity Band
Located in Scottsdale, AZ
Designer: custom
Material: 14K white gold
Diamond: 24 emerald cut = 4.42cttw
Color: G
Clarity: VS-SI1
Ring size: 6.5 (please allow two additional shipping days for sizing requests)
W...
Category
21st Century and Contemporary Unknown Jewelry
Materials
Diamond, 14k Gold, White Gold
Antique Art Deco 14k Enamel Onyx Carnelian Bracelet Vintage Solid Yellow Gold
Located in Greer, SC
Absolutely stunning antique art deco bracelet created in solid 14k yellow gold. Featuring luscious enamel with alternating carved carnelian and onyx stone links. Hallmarked / stamped...
Category
Mid-20th Century Unknown Art Deco Unknown Jewelry
Materials
Carnelian, Onyx, Yellow Gold, Enamel
Ruby and Fancy Yellow Diamond Eternity Band Ring
Located in Laguna Niguel, CA
It comes with the Gemological Appraisal by GIA GG/AJP
All Gemstones are Natural
11:11 (11 Rubies & 11 Fancy Yellow Diamonds)
Rubies = 2.20 Carats
(Cut: Pear, Color: Red)
Fancy Yello...
Category
21st Century and Contemporary Contemporary Unknown Jewelry
Materials
Diamond, Yellow Diamond, Ruby, Gold, 14k Gold, Rose Gold
2.53ct Royal Blue Sapphire Pair
Located in Christchurch, NZ
The Sapphire Merchant presents this Vivid Royal Blue Sapphire Pair, a true embodiment of luxury and elegance. This exceptional duo combines a tot...
Category
2010s Sri Lankan Unknown Jewelry
Materials
Blue Sapphire
Art Deco 18 Karat White Gold Orange Blossom Wheat Wedding Band Ring
Located in Philadelphia, PA
Band ring features an engraved orange blossom motif fully around
With engraved wheat motif profile and milgrain detail
Stamped for 18 karat gold
With maker's mark
Circa: 1930s
Ring ...
Category
1930s Art Deco Vintage Unknown Jewelry
Materials
Gold, 18k Gold, White Gold
Emerald and Cultured Pearl Necklace
Located in New York, NY
Emerald and Cultured Pearl Necklace
A four-strand necklace with cultured pearls and 135 emerald beads separated with gold spacers. It features a center gold pendant adorned with mix...
Category
20th Century Unknown Unknown Jewelry
Materials
Diamond, Emerald, Cultured Pearl, 18k Gold
19.60 Carat Natural Loose Emerald Gemstone. AAA Gem
Located in Miami, FL
This superb loose emerald boasts a remarkable 19.60 carats and features a stunning cushion cut, measuring 6.20 x 5.80 mm. With its deep color and intense green hue, this natural eart...
Category
21st Century and Contemporary European Unknown Jewelry
Materials
Emerald
Oval Blue Sapphire and Diamond Halo Earrings in 14k White Gold
Located in La Jolla, CA
Oval Blue Sapphire and Diamond Halo Earrings in 14k White Gold
Diamond and Sapphire Earrings feature two Natural Oval Deep Blue Sapphires encircled by a halo of Round Brilliant Dia...
Category
21st Century and Contemporary North American Unknown Jewelry
Materials
Diamond, Blue Sapphire, 14k Gold, White Gold
Diamond Pendant Charm 18 Karat Yellow Gold
Located in Geneva, CH
Enhance your elegance with this exquisite small pendant crafted in 18K yellow gold.
Adorned with a dazzling diamond weighing 0.4 carats, this pendant exudes sophistication and charm....
Category
21st Century and Contemporary Unknown Jewelry
Materials
Diamond, Yellow Gold
Art Deco 1.05ct Diamond Solitaire Ring, c.1930s
Located in London, GB
This classic solitaire ring radiates timeless Art Deco style. A 1.05 carat transitional cut diamond is star of the show. The diamond has a colour of I and a clarity of VS1 and is cor...
Category
1930s Unknown Art Deco Vintage Unknown Jewelry
Materials
Diamond, Platinum
AGL Certified PINK SAPPHIRE CUS 6.07 CT. WHITE DIA (MIX SHAPE) 2.23CT 18KW RING
Located in New York, NY
Discover unparalleled beauty with our AGL certified 6.07 carat pink sapphire cushion and 2.23 carat white diamond (mixed shape) 18KW ring. This exquisite piece captures attention wit...
Category
21st Century and Contemporary Asian Unknown Jewelry
Materials
Pink Sapphire
Vintage 6.87Ct Diamond and Platinum Cornucopia Brooch Circa 1950
Located in Jesmond, Newcastle Upon Tyne
A stunning, fine and impressive vintage 1950s 6.87 carat diamond and platinum cornucopia brooch; part of our diverse diamond brooches collection.
This stunning, fine and impressive ...
Category
1950s Vintage Unknown Jewelry
Materials
Diamond, Platinum, White Gold
11.22 Carats Diamond Gold Floral Large Drop Earrings
Located in Miami, FL
Feel like a Princess!
Let the sparkle dazzle everyone in the
room and live the true beauty of High-Quality Jewelry!
These Majestic earrings are crafted in 14K White and Yellow Gol...
Category
21st Century and Contemporary American Modern Unknown Jewelry
Materials
Diamond, Gold
NWT $775, 000 18KT Gold Rare Fancy Paraiba Natural Sapphire Diamond Necklace
Located in New York, NY
A Magnificent Important 18KT White Gold Paraiba Diamond Natural Blue Sapphire Diamond Necklace. Necklace is comprised of Finely Set Glittering Gorgeous Rare Important Paraiba adorned...
Category
21st Century and Contemporary Unknown Jewelry
Materials
Diamond, Sapphire, Paraiba, Gold
2.25ct Garnet Solitaire Ring Engagement Ring
Located in Miami, FL
Elevate your style with our exquisite Solitaire Garnet Ring, crafted from radiant 10k yellow gold. Adorned with a natural garnet stone, prong-set to perfection, this ring exudes time...
Category
2010s European Art Nouveau Unknown Jewelry
Materials
Diamond, Garnet, 10k Gold, Yellow Gold
Sapphire Diamond Aquamarine Ladies Estate Pin
Located in Miami, FL
Fashioned in 18k white gold, this exquisite vintage pin showcases a dazzling array of diamonds totaling 0.90 carats, with SI clarity and G color, accentuated by the unique charm of r...
Category
2010s European Art Deco Unknown Jewelry
Materials
Aquamarine, Diamond, Sapphire, Gold, 18k Gold, White Gold
Pink Sapphire Bracelet Diamond Halo 12 Carats 18K Gold
Located in Laguna Niguel, CA
It comes with the Gemological Appraisal by GIA GG/AJP
All Gemstones are Natural
Pink Sapphires = 8.50 Carats
Diamonds = 3.60 Carats
Metal: 18K White Gold
Length: 7 Inches
Width: 0.28...
Category
21st Century and Contemporary Contemporary Unknown Jewelry
Materials
Diamond, White Diamond, Sapphire, Pink Sapphire, Gold, 18k Gold, White Gold
Art Deco Diamond Négligée Necklace
Located in London, GB
Here we have a delightful diamond négligée necklace from the later stages of the Art Deco movement. A duo of old cut diamonds hang freely from individual diamond set knife edge bars ...
Category
Early 20th Century Unknown Jewelry
Materials
Diamond, Platinum
Rare Natural Multicolored Spinel Earrings Diamond Halo 8.50 Carats 18K Gold
Located in Laguna Niguel, CA
It comes with the Gemological Appraisal by GIA GG/AJP
All Gemstones are Natural
Multicolored Spinels = 7.90 Carats
Cut: Cushion
Diamonds = 0.60 Carats
Cut: Round, Color: F-G, Clarity...
Category
21st Century and Contemporary Contemporary Unknown Jewelry
Materials
Diamond, White Diamond, Spinel, Gold, 18k Gold, Yellow Gold
Pendientes de Oro con Diamantes
Located in BARCELONA, ES
Pendientes en Oro y Diamantes para mujer 36x Diamantes en talla Brillante con peso total aprox. 0,54ct Cierre omega Oro Blanco y Oro Amarillo 18 kt 12,19 gramos. Estos pendiente...
Category
1980s European Vintage Unknown Jewelry
Anillo Tuttifrutti de Zafios y Oro Blanco
Located in BARCELONA, ES
White Gold Ring with Sapphires and Diamonds 6x Brilliant Cut Diamonds with a total weight of 0,31 cts., in G/VS quality 14x Round Cut Cashmere Sapphires...
Category
21st Century and Contemporary European Unknown Jewelry
Unknown jewelry & watches for sale on 1stDibs.
Find a range of Unknown jewelry & watches available on 1stDibs. Each of these unique items was designed with extraordinary care, often using gold. While looking for the most stylish antique or vintage Unknown jewelry to pair with your ensemble, you’ll find that Unknown diamond jewelry & watches, from our inventory of 80,710, can add a particularly distinctive touch to your look. We have 126,010 pieces in this collection as well as a number of other designs by this jeweler. While this collection reflects work that originated over various time periods, most of these items were designed during the 21st century and contemporary. Prices for Unknown jewelry & watches can differ depending upon gemstone, time period and other attributes. On 1stDibs, the price for these items starts at $20 and tops out at $7,123,285, while pieces like these, on average, can sell for $2,925.