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GIA Natural Yellow Radiant Diamond Bezel Ring in 18K Yellow Gold
Located in Los Angeles, CA
Beautiful 3.00 ct. U-V VVS2 diamond radiant. Handmade in 18k yellow gold. Ring size 6.75. Comes with a GIA certificate.
Category

21st Century and Contemporary Solitaire Rings

Materials

Diamond, Yellow Gold

5 Carat Yellow Diamond Radiant, Pink Diamond, and White Diamond Ring in 18K
Located in Los Angeles, CA
Beautiful 5.09 ct. natural yellow diamond radiant with natural pink and white diamond rounds. Handmade in 18k white and yellow gold. Ring size 5.5.
Category

21st Century and Contemporary Cocktail Rings

Materials

White Diamond, Yellow Diamond, Pink Diamond, 18k Gold

GIA White Diamond Cushion Solitaire Ring in Black Rhodium 18K Yellow Gold
Located in Los Angeles, CA
Beautiful 1.21 ct. I VS2 white diamond cushion cut. Handmade in 18k yellow gold and black rhodium. Ring size 6.25. Comes with GIA certificate.
Category

21st Century and Contemporary Solitaire Rings

Materials

White Diamond, Yellow Gold, Rhodium

Tahitian Pearl Necklace in 18K White Gold
Located in Los Angeles, CA
Beautiful Tahitian pearl necklace handmade in 18k white gold. Total of 10 pearls with nice luster and color. Length is 19".
Category

21st Century and Contemporary Chain Necklaces

Materials

Pearl, White Gold

GIA White Diamond Cushion Stud Earrings in 18K Yellow Gold Black Rhodium
Located in Los Angeles, CA
Gorgeous 3.40 ct. K VVS white diamond cushion cuts. Handmade in 18k yellow and black rhodium. Push back setting. Comes with GIA certificates.
Category

21st Century and Contemporary Stud Earrings

Materials

White Diamond, Yellow Gold, Rhodium

GIA White Diamond Round Tennis Necklace in 18K White Gold
Located in Los Angeles, CA
Gorgeous 47.65 ct. IJ VVS-SI white diamond rounds. Total of 68 stones, 0.70 ct. each. Handmade in 18k white gold. Length is 16". Each stone comes with a GIA certificate.
Category

21st Century and Contemporary Link Necklaces

Materials

White Diamond, White Gold

GIA White Diamond Pear Shape 0.50 Carat Each Eternity Ring in 18K White Gold
Located in Los Angeles, CA
Beautiful 8.06 ct. EF SI white diamond pear shapes. Total of 16 stones, each one is 0.50 ct. Handmade in 18k white gold. Ring size 7. Each stone comes with a GIA certificate.
Category

21st Century and Contemporary Band Rings

Materials

White Diamond, White Gold

GIA White Diamond Round Eternity Band Ring in 18K White Gold
Located in Los Angeles, CA
Beautiful 9.10 ct. HI SI white diamond rounds. Total of 13 stones, each one weighs 0.70 ct. Handmade in 18k white gold. Ring size 7. Each stone comes with a GIA certificate.
Category

21st Century and Contemporary Band Rings

Materials

White Diamond, White Gold

GIA White Diamond Emerald Cut Eternity Band Ring in 18K Yellow Gold
Located in Los Angeles, CA
Beautiful 6.00 ct. GHI VVS-VS white diamond emerald cuts. Total of 20 stones. Handmade in 18k white gold. Ring size 6.5. Each stone comes with a GIA certificate.
Category

21st Century and Contemporary Band Rings

Materials

White Diamond, Yellow Gold

GIA White Diamond Half Carat Each Eternity Band Ring in 18K White Gold
Located in Los Angeles, CA
Beautiful 7.53 ct. EFG SI1-SI2 white diamond ovals. Total of 15 stones, each one is 0.50 ct. Handmade in 18k white gold. Ring size 6.5. GIA certificates for each stone are included.
Category

21st Century and Contemporary Band Rings

Materials

White Diamond, White Gold

White Diamond Round Eternity Band Ring in 18K White Gold
Located in Los Angeles, CA
Beautiful eternity band with good quality, white, and bright diamond rounds. Ring size 6.5. Handmade in 18k white gold.
Category

21st Century and Contemporary Band Rings

Materials

White Diamond, White Gold

GIA White Diamond Round Tennis Necklace in 18K White Gold
Located in Los Angeles, CA
Gorgeous 52.65 ct. HIJ VS1-SI2 white diamond rounds. Total of 75 stones, each one weighs 0.70 ct. All stones come with GIA certificates. Handmade in 18k white gold. Length is 16".
Category

21st Century and Contemporary Link Necklaces

Materials

White Diamond, White Gold

GIA White Diamond Oval Half Carat Each Eternity Band Ring in 18K White Gold
Located in Los Angeles, CA
Beautiful 7.51 ct. DEF SI1-SI2 white diamond ovals. Total of 15 stones, each one weighs 0.50 ct. Each stone comes with a GIA certificate. Handmade in 18k white gold. Ring size 6+.
Category

21st Century and Contemporary Band Rings

Materials

White Diamond, White Gold

GIA 10 Carat Asscher Cut White Diamond Eternity Band Ring in 18K White Gold
Located in Los Angeles, CA
Gorgeous 10.53 ct. HI VVS1-VS2 white diamond asscher cuts. Handmade in 18k white gold. Each diamond is 0.70 ct. Ring size 6.5. GIA certificates included. Ring can be custom made...
Category

21st Century and Contemporary Band Rings

Materials

White Diamond, White Gold

Estate Tiffany Co White Pearl and Diamond Brooch in Platinum
By Tiffany Co.
Located in Los Angeles, CA
Gorgeous estate Tiffany & Company brooch featuring a big white round pearl and good quality white
Category

21st Century and Contemporary Brooches

Materials

Diamond, Pearl, Platinum

White Diamond Emerald Cut In Out Semi Hoop Earrings in 18K Yellow Gold
Located in Los Angeles, CA
Gorgeous 7.21 ct. good quality, white, and bright diamond emerald cuts. Handmade in 18k yellow gold. Diamonds are both inside and outside. Push back setting.
Category

21st Century and Contemporary Hoop Earrings

Materials

White Diamond, Yellow Gold

GIA White Diamond Oval Tennis Necklace in 18K White Gold
Located in Los Angeles, CA
Gorgeous 41.61 ct. EFG SI white diamond ovals. Total of 83 stones, each one is 0.50 ct. Handmade in 18k white gold. Length is 16". Each stone comes with a GIA certificate.
Category

21st Century and Contemporary Chain Necklaces

Materials

White Diamond, White Gold

GIA White Diamond Heart Tennis Necklace in 18K White Gold
Located in Los Angeles, CA
Stunning 39.33 ct. HI VVS-VS white diamond heart shapes. Total of 72 stones, each stone is 0.50 to 0.60 ct. All stones come with GIA certificates. Handmade in 18k white gold. Len...
Category

21st Century and Contemporary Link Necklaces

Materials

White Diamond, White Gold

GIA White Diamond Round Tennis Bracelet in 18K White Gold
Located in Los Angeles, CA
Gorgeous 16.87 ct. IJ VVS-SI white diamond rounds. Total of 33 stones, each one is 0.50 ct. Handmade in 18k white gold. Length is 7". Each stone comes with a GIA certificate.
Category

21st Century and Contemporary Tennis Bracelets

Materials

White Diamond, White Gold

White Diamond Round Tennis Necklace in 14K White Gold
Located in Los Angeles, CA
Beautiful 7.01 ct. good quality, white, and bright diamond rounds. Handmade in 14k white gold. Three prong setting. Length is 16".
Category

21st Century and Contemporary Link Necklaces

Materials

White Diamond, White Gold

White Diamond Round Tennis Necklace in 14K Yellow Gold
Located in Los Angeles, CA
Beautiful 6.18 ct. good quality, white, and bright diamond rounds. Handmade in 14k yellow gold. Three prong setting. Length is 17".
Category

21st Century and Contemporary Link Necklaces

Materials

White Diamond, Yellow Gold

GIA 4 Carat Yellow Diamond Pear Snake Ring in 18K Yellow Gold
Located in Los Angeles, CA
Stunning 4.01 ct. W to X VS2 yellow diamond pear shape. Ring size 6.75. Handmade in 18k yellow gold in the USA. Comes with GIA certificate.
Category

21st Century and Contemporary Solitaire Rings

Materials

Yellow Diamond, Yellow Gold

White Diamond Round Rose Cut Necklace in 18K White Gold
Located in Los Angeles, CA
Beautiful 1.06 ct. white diamond round rose cuts. Handmade in 18k white gold. Length is 18". total of 10 stones.
Category

21st Century and Contemporary Chain Necklaces

Materials

White Diamond, White Gold

GIA Half Carat Each White Diamond Heart Tennis Bracelet in 18K White Gold
Located in Los Angeles, CA
Stunning 14.98 ct. FG VS-SI white diamond heart shapes. Total of 29 stones, each one is 0.50 ct. Length is 7". Handmade in 18k white gold. All stones come with GIA certificates. ...
Category

21st Century and Contemporary Tennis Bracelets

Materials

White Diamond, White Gold

White Diamond Old European Cut Eternity Band Ring in Platinum
Located in Los Angeles, CA
Beautiful 7.46 ct. white diamond old European cuts. Total of 15 stones. Handmade in platinum. Ring size 5.
Category

21st Century and Contemporary Band Rings

Materials

White Diamond, Platinum

White Diamond Ovals 1.50 Carats Each Martini Stud Earrings in 18K
Located in Los Angeles, CA
Beautiful 3.09 ct. white diamond oval studs. Handmade in 18k white gold. Each stone is over 1.50 ct. Martini style push back earring.
Category

21st Century and Contemporary Stud Earrings

Materials

White Diamond, 18k Gold

White Diamond Rose Cut Chain Necklace in 18K White Gold
Located in Los Angeles, CA
Stunning 22.43 ct. good quality, white, and bright diamond rose cut rounds. Total of 205 stones. Handmade in 18k white gold. Length is 35.5".
Category

21st Century and Contemporary Multi-Strand Necklaces

Materials

White Diamond, White Gold

GIA White Diamond Cushion 1.50 Carat Solitaire Ring in 18K Yellow Gold
Located in Los Angeles, CA
Beautiful 1.50 ct. J SI1 white diamond cushion. Handmade in 18k yellow gold bezel. Ring size 6.5. Includes a GIA certificate.
Category

21st Century and Contemporary Solitaire Rings

Materials

White Diamond, Yellow Gold

GIA 1 Carat Each Heart White Diamond Martini Stud Earrings in 18K White Gold
Located in Los Angeles, CA
Beautiful 2.08 ct. FG SI white diamond heart shapes. Handmade in 18k white gold with push back setting. Comes with GIA certificates.
Category

21st Century and Contemporary Stud Earrings

Materials

White Diamond, White Gold

GIA White Diamond Round Martini Stud Earrings in 18K White Gold
Located in Los Angeles, CA
Stunning 3.06 ct. FG SI1-SI2 white diamond rounds. Handmade in 18k white gold martini setting. Comes with GIA certificates.
Category

21st Century and Contemporary Stud Earrings

Materials

White Diamond, White Gold

GIA White Diamond 6 Carat Asscher Cut Solitaire Ring in Platinum
Located in Los Angeles, CA
Absolutely stunning 6.10 ct. J VS1 white diamond asscher cut. Handmade in platinum. Ring size 6.25. Comes with a GIA certificate.
Category

21st Century and Contemporary Solitaire Rings

Materials

White Diamond, Platinum

GIA Diamond Radiant 3 Carat Solitaire Ring in 18K Yellow Gold
Located in Los Angeles, CA
Gorgeous 3.02 ct. W to X VS1 diamond radiant. Handmade in 18k yellow gold. Ring size 6.75. Comes with GIA certificate.
Category

21st Century and Contemporary Solitaire Rings

Materials

Diamond, Yellow Gold

GIA Multi-Shape White Diamond Bracelet in 18K White Gold
Located in Los Angeles, CA
Gorgeous 9.72 ct. FG color white diamond cushions, princess cuts, pear shapes, and oval diamonds. Total of 16 stones. Handmade in 18k white gold. Length is 7". Comes with GIA cer...
Category

21st Century and Contemporary Modern Bracelets

Materials

White Diamond, White Gold

White Diamond Ovals 1.50 Carat Each Bezel Stud Earrings in 18K White Gold
Located in Los Angeles, CA
Beautiful 3.03 ct. white diamond ovals. Handmade in 18k white gold, push back setting.
Category

21st Century and Contemporary Stud Earrings

Materials

White Diamond, White Gold

White Diamond Dangle Earrings in 18K Yellow Gold
Located in Los Angeles, CA
Beautiful dangle earrings with good quality, white, and bright diamond rounds. Handmade in 18k yellow gold. Push back setting.
Category

21st Century and Contemporary Dangle Earrings

Materials

White Diamond, Yellow Gold

White Diamond Round Tennis Necklace in 18K White Gold
Located in Los Angeles, CA
Gorgeous 12.44 ct. good quality white diamond rounds. Total of 140 stones. Handmade in 18k white gold. Length is 16.5".
Category

21st Century and Contemporary Link Necklaces

Materials

White Diamond, White Gold

GIA 1 Carat Each White Diamond Round Bezel Stud Earrings in 18K White Gold
Located in Los Angeles, CA
Beautiful 2.00 ct. G SI2 white diamond rounds. Each stone weighs 1.00 ct. Handmade in 18k white gold, push back setting. Comes with GIA certificates.
Category

21st Century and Contemporary Stud Earrings

Materials

White Diamond, White Gold

GIA Cushion 1.5 Carat Each White Diamond Pendant Necklace in 18K White Gold
Located in Los Angeles, CA
Beautiful 9.06 ct. IJ SI white diamond cushion cuts. Total of 6 stones, each weighing 1.50 ct. Handmade in 18k white gold. Length is 18". All stones come with GIA certificates.
Category

21st Century and Contemporary Pendant Necklaces

Materials

White Diamond, White Gold

GIA 1 Carat Each White Diamond Heart Tennis Bracelet in 18K White Gold
Located in Los Angeles, CA
Gorgeous 26.12 ct. EFG VVS-SI white diamond heart shapes. Total of 26 stones, each one is 1.00 ct. Handmade in 18k white gold. Length is 7". All stones come with GIA certificates.
Category

21st Century and Contemporary Tennis Bracelets

Materials

White Diamond, White Gold

GIA Emerald Cut Half Carat Each Diamond Tennis Bracelet in 18K White Gold
Located in Los Angeles, CA
Stunning 21.07 ct. F-G VVS-VS white diamond emerald cuts. Total of 42 stones, each stone is 0.50 ct. Handmade in 18k white gold. Length is 7". GIA certificates included.
Category

21st Century and Contemporary Tennis Bracelets

Materials

Diamond, Emerald, White Gold

Emerald and Yellow Diamond Briolette Earrings in 18K Yellow Gold
Located in Los Angeles, CA
Gorgeous big emerald pear shapes with natural yellow diamond briolettes. Handmade in 18k yellow gold.
Category

21st Century and Contemporary Lever-Back Earrings

Materials

Yellow Diamond, Emerald, Yellow Gold

White Diamond X Earrings in 18K White Gold
Located in Los Angeles, CA
Beautiful 1.00 ct. good quality, white, and bright diamond rounds. Handmade in 18k white gold.
Category

21st Century and Contemporary Lever-Back Earrings

Materials

White Diamond, White Gold

White Diamond Necklace in 14K Yellow Gold
Located in Los Angeles, CA
Beautiful 0.67 ct. good quality, white, and bright diamond rounds. Handmade in 14k yellow gold. Length is 18.5".
Category

21st Century and Contemporary Link Necklaces

Materials

White Diamond, Yellow Gold

GIA 12 Carat Emerald Cut Diamond Ring in 18K Yellow Gold
Located in Los Angeles, CA
Gorgeous 12.00 ct. W to X VS1 diamond emerald cut. Handmade in 18k yellow gold. Ring size 6.5. Comes with GIA certificate.
Category

21st Century and Contemporary Solitaire Rings

Materials

Diamond, Yellow Gold

Old Cut White Diamond Round Vintage Pendant in Platinum
Located in Los Angeles, CA
Gorgeous 3.50 ct. old cut white diamond rounds. Total of 14 stones. Handmade in platinum.
Category

21st Century and Contemporary Pendant Necklaces

Materials

White Diamond, Platinum

Yellow Diamond Oval Dangle Earrings in 18K 2 Tone Gold
Located in Los Angeles, CA
Gorgeous 5.09 ct. and 5.01 ct. diamond ovals with good quality, white, and bright diamond rounds. Handmade in 18k white and yellow gold.
Category

21st Century and Contemporary Dangle Earrings

Materials

Yellow Diamond, Gold

GIA White Diamond Emerald Cuts 0.30 Carat Each Cross Necklace in 18K White Gold
Located in Los Angeles, CA
Gorgeous 3.42 ct. HI VVS-VS white diamond emerald cuts. Total of 11 stones, each one is 0.30 ct. Each stone comes with a GIA certificate. Handmade in 18k white gold. Length is 18".
Category

21st Century and Contemporary Pendant Necklaces

Materials

White Diamond, White Gold

GIA 1 Carat Each Emerald Cut Diamond Eternity Band Ring in 18K White Gold
Located in Los Angeles, CA
Gorgeous 14.00 ct. FG VVS - VS white diamond emerald cuts. Total of 14 stones, each one weighs 1.00 ct. Handmade in 18k white gold. Ring size 5.75. Each stone comes with a GIA ce...
Category

21st Century and Contemporary Band Rings

Materials

Diamond, White Gold

GIA Oval Half Carat Each Diamond Tennis Bracelet in 18K White Gold
Located in Los Angeles, CA
Stunning 18.72 ct. DEF SI white diamond ovals. Total of 37 stones, 0.50 ct. each. Length is 7". All stones have a GIA certificate.
Category

21st Century and Contemporary Tennis Bracelets

Materials

Diamond, White Gold

White Diamond Marquise Double Row Eternity Band Ring in Platinum
Located in Los Angeles, CA
Gorgeous 10.00 ct. white diamond marquise double row band. Handmade in platinum. Ring size 6.75.
Category

21st Century and Contemporary Band Rings

Materials

White Diamond, Platinum

GIA Yellow Diamond Heart 1 Carat Each Eternity Band Ring in 18K Yellow Gold
Located in Los Angeles, CA
Stunning 11.08 ct. fancy light yellow to fancy yellow VS - SI yellow diamond heart shapes. Total of 11 stones, each one weighs 1.00 ct. Handmade in 18k yellow gold. Ring size 6.75...
Category

21st Century and Contemporary Band Rings

Materials

Yellow Diamond, Yellow Gold

GIA 5 Carat White Diamond Pendant Necklace in Platinum
Located in Los Angeles, CA
Gorgeous 5.00 ct. H SI1 white diamond heart shape. Handmade in platinum. Length is 18". Comes with GIA certificate.
Category

21st Century and Contemporary Pendant Necklaces

Materials

White Diamond, Platinum

Amethyst Emerald Cut and White Diamond Bracelet in Platinum Palladium
Located in Los Angeles, CA
Gorgeous amethyst emerald cuts with 4.00 ct. of good quality white diamond rounds. Handmade in platinum and palladium. Length is 7".
Category

21st Century and Contemporary Cuff Bracelets

Materials

Amethyst, White Diamond, Palladium, Platinum

White Diamond Pin in Platinum
Located in Los Angeles, CA
Beautiful pin/brooch with good quality, white, and bright white diamond rounds. Handmade in platinum.
Category

21st Century and Contemporary Brooches

Materials

White Diamond, Platinum

White Diamond Round Flexible Bangle Bracelet in 14K Yellow Gold
Located in Los Angeles, CA
Gorgeous 10.19 ct. good quality, white, and bright diamond rounds. Handmade in 14k yellow gold. This bangle bracelet is flexible so it can fit any size wrist. Great to stack or we...
Category

21st Century and Contemporary Bangles

Materials

White Diamond, Yellow Gold

GIA Half Carat Each Pear Shape Diamond Tennis Necklace in 18K White Gold
Located in Los Angeles, CA
Gorgeous 44.64 ct. EFG VS2-SI2 white diamond pear shape tennis necklace. Handmade in 18k white gold. Each stone is 0.50 ct. Total of 86 stones. Each stone comes with a GIA certif...
Category

21st Century and Contemporary Link Necklaces

Materials

Diamond, White Gold

GIA Half Carat Each White Diamond Round Bezel Stud Earrings in 18K Yellow Gold
Located in Los Angeles, CA
Gorgeous 1.00 ct. J SI2 white diamond rounds. Each diamond is 0.50 ct. Handmade in 18k yellow gold. Comes with GIA certificates.
Category

21st Century and Contemporary Stud Earrings

Materials

White 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.