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Estate H. Stern Necklace in 18K Yellow Gold
By H. Stern
Located in Los Angeles, CA
Beautiful estate H. Stern 18k yellow gold necklace. A matching bracelet is also available. Handmade with attention to detail.
Category

21st Century and Contemporary Link Necklaces

Materials

Yellow Gold

GIA White Diamond Oval Riviera Necklace in 18K White Gold
Located in Los Angeles, CA
Stunning 42.55 ct. GHI IF-SI2 white diamond ovals. Center stone is 1.50 ct. Length is 16". Total of 84 stones, graduating from 1.50 ct. and down. Handmade in 18k white gold. All...
Category

21st Century and Contemporary Link Necklaces

Materials

White Diamond, White Gold

Pink Sapphire Heart and White Diamond Necklace in 18K White Gold
Located in Los Angeles, CA
Beautiful 8.12 ct. pink sapphire heart shapes with 5.32 ct. good quality, white and bright diamond rounds. Handmade in 18k white gold.
Category

21st Century and Contemporary Drop Necklaces

Materials

White Diamond, Pink Sapphire, White Gold

GIA White Diamond Round Riviera Necklace in 18K White Gold
Located in Los Angeles, CA
Gorgeous 41.72 ct. JKL VS-SI white diamond rounds. Total of 77 stones. Handmade in 18k white gold. Length is 15". All stones have a GIA certificate.
Category

21st Century and Contemporary Link Necklaces

Materials

White Diamond, White Gold

White Diamond Baguette Three Row Bracelet in Platinum
Located in Los Angeles, CA
Absolutely stunning bracelet with 43.00 cts. of good quality, white, and bright diamond baguettes. Handmade in platinum. Length is 6.75" with a 1" extension. This bracelet has uni...
Category

21st Century and Contemporary Link Bracelets

Materials

White Diamond, Platinum

Natural Pink and White Diamond Floral Earrings and Pendant Set
Located in Los Angeles, CA
Stunning 3.69 ct. good quality, white, and bright diamond pear shapes with 0.78 ct. natural pink diamond rounds. Handmade in platinum and 18k rose gold.
Category

21st Century and Contemporary Pendant Necklaces

Materials

White Diamond, 18k Gold, Rose Gold, Platinum

White Diamond Rose Cut Round Chain Necklace in 18K Yellow Gold
Located in Los Angeles, CA
Gorgeous 11.63 ct. good quality, white, and bright diamond rose cut rounds. Total of 105 stones. Handmade in 18k yellow gold. Length is 36". Fun and frivolous! This necklace is ...
Category

21st Century and Contemporary Chain Necklaces

Materials

White Diamond, Yellow Gold

Estate H. Stern Floral Bracelet in 18K Yellow Gold
By H. Stern
Located in Los Angeles, CA
Gorgeous estate H. Stern bracelet handmade in 18k yellow gold. Matching necklace available. Length is 8"+.
Category

21st Century and Contemporary Modern Bracelets

Materials

Yellow Gold

GIA White Diamond Emerald Cut 3-Row Bracelet in 18K White Gold
Located in Los Angeles, CA
Stunning 45.42 ct. HIJ IF-VS2 white diamond emerald cuts. Total of 141 stones, each one weighs 0.30 ct. Handmade in 18k white gold. Length is 6.5". Each stone comes with a GIA ce...
Category

21st Century and Contemporary Modern Bracelets

Materials

White Diamond, White Gold

White Diamond "Honeycomb" Tennis Bracelet in 14K White Gold
Located in Los Angeles, CA
Beautiful 5.15 ct. good quality, white and bright diamond rounds in a honeycomb bezel design. Total of 43 stones. Length is 7".
Category

21st Century and Contemporary Tennis Bracelets

Materials

White Diamond, White Gold

GIA White Old European Round Solitaire Diamond Ring
Located in Los Angeles, CA
Gorgeous 5.12 ct. L VS2 white diamond old European round. Handmade in 18k white gold. Ring size 5.25. Comes with GIA certificate.
Category

21st Century and Contemporary Solitaire Rings

Materials

Diamond, 18k Gold

White Diamond Round Necklace and Bracelet Set in 18K White Gold
Located in Los Angeles, CA
Gorgeous 19.06 ct. good quality, white, and bright diamond rounds in this carefully handcrafted necklace and bracelet set. Handmade in 18k white gold.
Category

21st Century and Contemporary Link Necklaces

Materials

White Diamond, White Gold

White Diamond Briolette Lariat Necklace in 18K Yellow Gold
Located in Los Angeles, CA
Beautiful and unique necklace with 14.17 ct. good quality white diamond rounds and briolettes. Handmade in 18k yellow gold. This necklace can be worn in many different ways and eve...
Category

21st Century and Contemporary Chain Necklaces

Materials

White Diamond, Yellow Gold

GIA Briolette and White Diamond Round Dangle Earrings in 18K Rose Gold
Located in Los Angeles, CA
Beautiful 2.19 ct. GH VS2 white diamond briolette and round earrings. Handmade in 18k rose gold. GIA certificate included.
Category

21st Century and Contemporary Dangle Earrings

Materials

White Diamond, Rose Gold

Rainbow Multicolor Sapphire and Ruby Necklace in 14K Yellow Gold
Located in Los Angeles, CA
Gorgeous 10.46 ct. of multicolor sapphire and ruby rounds. Length is 18". Handmade in 14k white gold.
Category

21st Century and Contemporary Chain Necklaces

Materials

Ruby, Sapphire, Yellow Gold

Colombian Emerald Sugarloaf Cabochon and White Diamond Necklace in 18K
Located in Los Angeles, CA
Gorgeous 5.70 ct. Colombian emerald sugarloaf with 0.24 ct. good quality white diamond rounds. Handmade in 18k yellow gold. Length is 18".
Category

21st Century and Contemporary Pendant Necklaces

Materials

White Diamond, Emerald, 18k Gold

Colombian Emerald Sugarloaf Cabochon and White Diamond Cluster Earrings in 18K
Located in Los Angeles, CA
Gorgeous 15.05 ct. Colombian emerald sugarloaf cabochons with 0.76 ct. good quality white diamond rounds. Handmade in 18k white gold. Push back setting.
Category

21st Century and Contemporary Stud Earrings

Materials

White Diamond, Emerald, 18k Gold

GIA White Diamond Oval Half Carat Each Tennis Necklace in 18K White Gold
Located in Los Angeles, CA
Gorgeous 40.30 ct. FG SI white diamond ovals. Total of 77 stones, each weigh 0.50 to 0.60 ct. Length is 16". Each stone has a GIA certificate.
Category

21st Century and Contemporary Necklace Enhancers

Materials

White Diamond, White Gold

GIA Fancy Vivid Yellow Cushion and White Diamond Three Stone Ring
Located in Los Angeles, CA
Gorgeous 1.10 ct. fancy vivid yellow diamond square cushion SI2 with good quality, white, and bright diamond shield cuts. Ring size 6.25. Handmade in platinum and 18k yellow gold.
Category

21st Century and Contemporary Three-Stone Rings

Materials

White Diamond, Yellow Diamond, 18k Gold, Platinum

Blue Tanzanite and White Diamond Cocktail Ring in Platinum
Located in Los Angeles, CA
Gorgeous bright 7.68 ct. tanzanite oval with 0.36 ct. good quality, white, and bright diamond rounds. Handmade in platinum. Ring size 7.
Category

21st Century and Contemporary Cocktail Rings

Materials

White Diamond, Tanzanite, Platinum

Vintage 18k Yellow Gold Necklace and Earring Set
Located in Los Angeles, CA
Absolutely stunning necklace and earring set that is a true work of art. Handmade in 18k yellow gold. The weight of gold is 180 grams. Length of necklace is 27.50".
Category

Late 20th Century Drop Necklaces

Materials

Yellow Gold

Emerald Beads and White Diamond Briolette Necklace
Located in Los Angeles, CA
Gorgeous 108.00 ct. emerald beads with 20.78 ct. good quality, white, and bright diamond briolettes. Handmade in 18k white gold. Length is 56". This necklace is versatile and easy...
Category

21st Century and Contemporary Beaded Necklaces

Materials

White Diamond, Emerald, 18k Gold

GIA 3 Carat Fancy Yellow Radiant Diamond Ring in Platinum and 18K Yellow Gold
Located in Los Angeles, CA
Gorgeous 3.07 ct. fancy yellow radiant diamond VS1 with 0.39 ct. good quality white diamond rounds. Handmade in 18k yellow gold and platinum. Ring size 6.5. GIA certificate is inc...
Category

21st Century and Contemporary Solitaire Rings

Materials

Diamond, Yellow Gold, Platinum

Estate Everion White Diamond Love Knot Ring in 14K White Gold
Located in Los Angeles, CA
Beautiful estate Everion diamond ring with 0.37 ct. good quality white diamond rounds. Handmade in 14k white gold. Ring size 7.
Category

21st Century and Contemporary Fashion Rings

Materials

White Diamond, White Gold

Blue Sapphire Cabochon and Black Onyx Ring in 18K White Gold
Located in Los Angeles, CA
Beautiful 4.50 ct. bright blue sapphire cabochon pear shape with black onyx. Handmade in 18k white gold. Ring size 7.5.
Category

21st Century and Contemporary Solitaire Rings

Materials

Onyx, Blue Sapphire, White Gold

Blue Sapphire, Ruby and White Diamond Brooch in 18K Yellow Gold Platinum
Located in Los Angeles, CA
Gorgeous 5.04 ct. blue sapphire and ruby rounds with 0.90 ct. of good quality white diamond rounds. Handmade in platinum and 18k yellow gold.
Category

21st Century and Contemporary Brooches

Materials

White Diamond, Ruby, Blue Sapphire, Yellow Gold, Platinum

GIA Round Brilliant Half Carat Each Diamond Stud Earrings in 18K Yellow Gold
Located in Los Angeles, CA
Beautiful 1.00 ct. J SI2 white diamond rounds. Two stones, 0.50 ct. each. GIA certificate included. Handmade in 18k yellow gold, push back setting. Two pairs available.
Category

21st Century and Contemporary Stud Earrings

Materials

Diamond, Yellow Gold

GIA White Diamond Martini Stud Earrings in 18K Yellow Gold
Located in Los Angeles, CA
Beautiful GIA 1.00 ct. J SI 1 round diamonds. Handmade in 18k yellow gold martini push back setting. GIA certificates included.
Category

21st Century and Contemporary Stud Earrings

Materials

White Diamond, Yellow Gold

Estate Hermes Cape Cod Large 37 mm Watch with Leather Strap
By Hermès
Located in Los Angeles, CA
Beautiful estate Hermes Cape Cod large 37 mm watch with brown leather strap.
Category

21st Century and Contemporary Wrist Watches

GIA White Diamond Pear Bezel Martini Stud Earrings in 18K White Gold
Located in Los Angeles, CA
Beautiful GIA 0.80 ct. J VS-SI white diamond pear shapes (0.40 ct. each). Handmade in 18k white gold. Push back setting. GIA certificates included.
Category

21st Century and Contemporary Stud Earrings

Materials

White Diamond, White Gold

White Diamond Tennis Necklace in 14K Yellow Gold
Located in Los Angeles, CA
Beautiful 7.81 ct. white diamond rounds. Handmade in 14k yellow gold. Length is 16".
Category

21st Century and Contemporary Chain Necklaces

Materials

White Diamond, Yellow Gold

GIA Thai Ruby Oval and White Oval Diamond Three Stone Ring in 18K and Platinum
Located in Los Angeles, CA
Gorgeous GIA 3.14 ct. Thai ruby oval with 1.41 ct. D-E VS-SI white diamond ovals (each stone weighs 0.70 ct.). Handmade in platinum and 18k yellow gold. Ring size 6.5. GIA certifi...
Category

21st Century and Contemporary Three-Stone Rings

Materials

Diamond, Ruby, 18k Gold, Platinum

Blue Sapphire and White Diamond Pendant Necklace in Platinum
Located in Los Angeles, CA
Beautiful 0.72 ct. blue sapphire oval with 0.58 ct. good quality white diamond round and baguette. Handmade in platinum. Length is 16".
Category

21st Century and Contemporary Pendant Necklaces

Materials

White Diamond, Blue Sapphire, Platinum

GIA 1 Carat Each Asscher Cut Tennis Diamond Bracelet in 18K White Gold
Located in Los Angeles, CA
Gorgeous 31.03 ct. GH VVS-VS white diamond asscher cuts. Total of 31 stones, 1 carat each. Handmade in 18k white gold. Length is 7". All stones have GIA certificates.
Category

21st Century and Contemporary Tennis Bracelets

Materials

Diamond, White Gold

GIA Emerald Cut White Diamond Tennis Necklace in 18K White Gold
Located in Los Angeles, CA
Gorgeous 56.14 ct. FG IF-VS2 white diamond emerald cuts. Total of 80 stones. Handmade in 18k white gold. Length is 15".
Category

21st Century and Contemporary Link Necklaces

Materials

White Diamond, White Gold

GIA 1.50 Carats Each White Diamond Cushion Bracelet in 18K and Black Rhodium
Located in Los Angeles, CA
Gorgeous 30.23 ct. J-K VVS2-SI2 white diamond cushions, each stone is 1.50 ct. total of 20 stones. Handmade in 18k yellow gold and black rhodium. Length is just under 7". All ston...
Category

21st Century and Contemporary Tennis Bracelets

Materials

White Diamond, 18k Gold, Rhodium

South Sea White Pearl and Ruby Cabochon Coin Brooch in 18K Yellow Gold
Located in Los Angeles, CA
Beautiful brooch with big white South Sea pearls and 3 ruby cabochon ovals. Coin image in center. Handmade in 18k yellow gold.
Category

20th Century Brooches

Materials

Pearl, Ruby, Yellow Gold

Japanese Akoya Pearl and White Diamond Choker Necklace in 18K Yellow Gold
Located in Los Angeles, CA
Beautiful white Akoya round pearls with bright green oval emeralds and good quality white diamond rounds. Clasp is handmade in 18k yellow gold.
Category

21st Century and Contemporary Beaded Necklaces

Materials

White Diamond, Emerald, Pearl, Yellow Gold

GIA White Diamond Pear, Marquise, and Oval Tennis Bracelet in 18K White Gold
Located in Los Angeles, CA
Gorgeous 13.26 ct. H-I color white diamond pears, ovals, and marquise shapes. Handmade in 18k white gold. Each stone comes with a GIA certificate.
Category

21st Century and Contemporary Tennis Bracelets

Materials

White Diamond, White Gold

1 Carat Old European Cut Diamond Ring in Platinum
Located in Los Angeles, CA
Gorgeous 1.00 ct. Old European diamond. Handmade in a platinum mounting. Ring size 6.5.
Category

20th Century Cocktail Rings

Materials

Diamond, Platinum

White Diamond Marquise and Blue Sapphire Art Deco Ring in 14K White Gold
Located in Los Angeles, CA
Beautiful white diamond marquise and rounds with blue sapphire rounds. Handmade in 14k white gold. Ring size 6.5.
Category

Mid-20th Century Cocktail Rings

Materials

White Diamond, Blue Sapphire, White Gold

Yellow Gold Chunky Link Bracelet in 14K
Located in Los Angeles, CA
Beautiful chunky link bracelet with 25.49 grams of gold. Length is 7.5". 14k yellow gold.
Category

21st Century and Contemporary Link Bracelets

Materials

Yellow Gold

White Diamond Round Rose Brooch in 18K Yellow Gold
Located in Los Angeles, CA
Beautiful 2.50 ct. good quality white diamond rounds. Handmade in 18k yellow gold.
Category

21st Century and Contemporary Brooches

Materials

White Diamond, Yellow Gold

GIA White Diamond Heart Stud Earrings in 18K White Gold
Located in Los Angeles, CA
Beautiful 1.05 ct. G VS2 white diamond hearts. Handmade in 18k white gold. Push back setting. Both stones have GIA certificates.
Category

21st Century and Contemporary Stud Earrings

Materials

White Diamond, White Gold

3 Carat Padparadscha Sapphire Cushion and White Diamond Cushion Ring in 18K Gold
Located in Los Angeles, CA
Gorgeous 3.02 ct. padparadscha sapphire cushion with 1.03 ct. good quality E VS white diamond cushions. Handmade in 18k yellow gold. Ring size 6.5. Comes with GIA certificates.
Category

21st Century and Contemporary Three-Stone Rings

Materials

White Diamond, Sapphire, Padparadscha Sapphire , 18k Gold

GIA Yellow Diamond Riviera Necklace in 18K Yellow Gold
Located in Los Angeles, CA
Absolutely stunning 71.22 ct. S-Z VVS-SI yellow diamond radiants. The diamonds range from 0.90 ct. (in the back) to 3.01 ct. in the center. Handmade in 18k yellow gold. Length is 1...
Category

21st Century and Contemporary Link Necklaces

Materials

Diamond, Yellow Diamond, Yellow Gold

GIA 1 Carat Each White Diamond Heart Shape Eternity Band Ring in 18K White Gold
Located in Los Angeles, CA
Gorgeous 12.07 ct. G-I VS-SI white diamond heart shapes. Total of 12 stones, each one is 1.00 ct. Handmade in 18k white gold. Ring size 7.25. Each stone comes with a GIA certific...
Category

21st Century and Contemporary Band Rings

Materials

White Diamond, White Gold

GIA White Diamond Cushion 1 Carat Each Diamond Eternity Band Ring in 18K Gold
Located in Los Angeles, CA
Beautiful 13.14 ct. HI VS-SI white diamond cushions. Total of 13 stones, each one is 1.00 ct. Handmade in 18k white gold. Ring size 6.5. All stones come with GIA certificates.
Category

21st Century and Contemporary Band Rings

Materials

White Diamond, 18k Gold

Emerald Oval and White Diamond Oval Three Stone Ring in Platinum 18K Gold
Located in Los Angeles, CA
Stunning 4.06 ct. bright emerald oval with 1.00 ct. GH SI2 white diamond ovals. Handmade in 18k yellow gold and platinum. Ring size 6.5. GIA certificates included.
Category

21st Century and Contemporary Three-Stone Rings

Materials

White Diamond, Emerald, 18k Gold, Platinum

GIA No Heat Oval Sapphire and White Diamond Three Stone Ring in Platinum 18K
Located in Los Angeles, CA
Gorgeous 5.10 ct. unheated brownish pinkish orange sapphire oval with 1.40 ct. E SI2 white diamond ovals. Handmade in platinum and 18k yellow gold. Ring size 6.5. Comes with GIA c...
Category

21st Century and Contemporary Three-Stone Rings

Materials

White Diamond, Sapphire, 18k Gold, Platinum

White Diamond Rose Cut Chain Necklace in 18K White Gold
Located in Los Angeles, CA
Beautiful 12.99 ct. good quality, white, and bright diamond rose cut rounds. Handmade in 18k white gold. Length is 42".
Category

21st Century and Contemporary Chain Necklaces

Materials

White Diamond, White Gold

GIA 1 Carat Each White Diamond Oval Bezel Eternity Band Ring in 18K Yellow Gold
Located in Los Angeles, CA
Stunning 9.02 ct. IJ SI white diamond ovals. Total of 9 stones, 1.00 ct. each. Handmade in 18k yellow gold. Ring size 7. Each stone comes with a GIA certificate.
Category

21st Century and Contemporary Band Rings

Materials

White Diamond, Yellow Gold

White Diamond Asscher Diagonal Tennis Necklace in Black Rhodium 18K
Located in Los Angeles, CA
Stunning 49.21 ct. white diamond asscher cuts. Total of 48 stones, each one is 1 carat or more. Handmade in 18k yellow gold and black rhodium. Length is 16".
Category

21st Century and Contemporary Link Necklaces

Materials

White Diamond, 18k Gold, Rhodium

GIA White Diamond Multi-Shape East to West Bezel Bracelet in 18K Yellow Gold
Located in Los Angeles, CA
Gorgeous 15.84 ct. I VVS-SI white multi shape diamonds. Handmade in 18k yellow gold. Length is 7". All stones come with GIA certificate.
Category

21st Century and Contemporary Modern Bracelets

Materials

White Diamond, Yellow Gold

GIA Mix Shape White Diamond East to West Bracelet in 18K White Gold
Located in Los Angeles, CA
Beautiful 12.50 ct. HI VVS-SI white diamond emerald cut, pear shape, and ovals. Total of 25 stones, each one is 0.50 ct. Handmade in 18k white gold. Length is 7". Each stone has ...
Category

21st Century and Contemporary Modern Bracelets

Materials

White Diamond, White Gold

GIA Yellow Diamond Oval Dangle Bezel Earrings in 18K Yellow Gold
Located in Los Angeles, CA
Stunning 12.08 ct. S-Z VVS-SI natural yellow diamond ovals. Total of 10 stones. Handmade in 18k yellow gold. Push back setting. Each stone comes with a GIA certificate.
Category

21st Century and Contemporary Dangle Earrings

Materials

Yellow Diamond, Yellow Gold

Yellow Diamond Trillion Dangle Earrings in 14K Yellow Gold
Located in Los Angeles, CA
Beautiful 1.84 ct. yellow diamond trillions with 0.67 ct. white diamond rounds. Handmade in 14k yellow gold.
Category

21st Century and Contemporary Dangle Earrings

Materials

Yellow Diamond, Yellow Gold

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Kothari Company Inc For Sale on 1stDibs

Find the exact kothari company inc you’re shopping for in the variety available on 1stDibs. Every item for sale was constructed with extraordinary care, often using gold, white gold and yellow gold. In our selection of items, you can find a vintage example as well as a contemporary version. Finding the perfect kothari company inc may mean sifting through those created during different time periods — you can find an early version that dates to the 20th Century and a newer variation that were made as recently as the 21st Century. Creating a kothari company inc has been a part of the legacy of many jewelers, but those produced by H. Stern, Kabana and Bulgari are consistently popular. Take a look at a kothari company inc featuring diamond from our inventory today to add the perfect touch to your look. See these pages for a round cut iteration of this accessory, while there are also oval cut cut and emerald cut cut versions available here, too. Most of our kothari company inc for sale are for men, but there are 2511 pieces available to browse for women.

How Much is a Kothari Company Inc?

On average, a kothari company inc at 1stDibs sells for $8,075, while they’re typically $450 on the low end and $1,000,000 for the highest priced versions of this item.

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.