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Guild 5 Carat Burma Ruby Cushion and Trapezoid Diamond Ring in 18K Yellow Gold
Located in Los Angeles, CA
Gorgeous 5.26 ct. Burma ruby cushion with 0.74 ct. good quality white diamond trapezoids. Handmade in 18k yellow gold. Guild certificate is included. Ring size 6.5.
Category

21st Century and Contemporary Three-Stone Rings

Materials

Diamond, Ruby, Yellow Gold

White Diamond Marquise Semi Hoop Earrings in 18K White Gold
Located in Los Angeles, CA
Gorgeous 2.50 ct. good quality, white, and bright diamond marquises. Handmade in 14k white gold.
Category

21st Century and Contemporary Hoop Earrings

Materials

White Diamond, White Gold

Three Stone White Diamond Pear Shape Ring in 14K Yellow Gold
Located in Los Angeles, CA
Beautiful 0.95 ct. white diamond pear shapes. Handmade in 14k yellow gold. Ring size 4.5.
Category

21st Century and Contemporary Fashion Rings

Materials

White Diamond, Yellow Gold

Estate Chanel Agate, Onyx and Diamond Camelia Ring in 18K White Gold
By Chanel
Located in Los Angeles, CA
Estate Chanel agate, onyx, and white diamond Camelia ring handmade in 18k white gold. Ring size 6.75.
Category

21st Century and Contemporary Fashion Rings

Materials

Agate, Diamond, Onyx, White Gold

Amethyst Heart with Sapphire, Emerald, and Ruby Cabochon Earrings in 18K Gold
Located in Los Angeles, CA
Beautiful 43.20 ct. amethyst hearts with 9.90 ct. blue sapphire, ruby, and emerald cabochons. Handmade in 18k yellow gold. Lever back with post back.
Category

21st Century and Contemporary Dangle Earrings

Materials

Amethyst, Emerald, Ruby, Sapphire, 18k Gold

AGL Unheated Multi-Color Sapphire Dangle Earrings in 14K Yellow Gold
Located in Los Angeles, CA
Gorgeous 7.57 ct. unheated multi color sapphire emerald cuts and rounds. Handmade in 14k yellow gold. AGL certificate included.
Category

21st Century and Contemporary Dangle Earrings

Materials

Sapphire, Yellow Gold

13 Carat Indicolite Tourmaline and White Diamond Pendant Necklace in Platinum
Located in Los Angeles, CA
Beautiful 13.01 ct. indicolite tourmaline emerald cut with good quality white diamond rounds. Handmade in platinum. Length is 20.5".
Category

21st Century and Contemporary Pendant Necklaces

Materials

White Diamond, Tourmaline, Indicolite, Platinum

GIA Burma Purplish Pink Oval Sapphire Ring in 18K Yellow Gold and Black Rhodium
Located in Los Angeles, CA
Gorgeous 5.55 ct. purplish pink Burma sapphire oval. Handmade in 18k yellow gold and black rhodium. Ring size 6.5. Comes with the GIA certificate.
Category

21st Century and Contemporary Cocktail Rings

Materials

Sapphire, Yellow Gold, Rhodium

5 Carat Marquise Diamond East West Bezel Necklace in 18K Yellow Gold
Located in Los Angeles, CA
Beautiful 5.19 ct. diamond marquise. Set in a handmade 18k yellow gold bezel and chain. Length is 18.5".
Category

21st Century and Contemporary Pendant Necklaces

Materials

Diamond, Yellow Gold

GIA 0.30 Carat Each Diamond Pear Shape Dangle Earrings in 18K White Gold
Located in Los Angeles, CA
Beautiful 5.55 ct. H VS-SI white diamond pear shapes and 0.10 ct. small white diamond rounds. Total of 18 stones, each one is 0.30 ct. Handmade in 18k white gold. GIA certificates...
Category

21st Century and Contemporary Dangle Earrings

Materials

Diamond, White Gold

Emerald Marquise and White Diamond Bracelet in 18K White Gold
Located in Los Angeles, CA
Gorgeous 8.92 ct. emerald marquise and good quality white diamond rounds. Handmade in 18k white gold. Length is 7.5".
Category

21st Century and Contemporary Modern Bracelets

Materials

White Diamond, Emerald, White Gold

White Diamond Round Platinum Ring
Located in Los Angeles, CA
Beautiful 1.65 ct. white diamond rounds. Handmade in platinum. Ring size 6.25.
Category

21st Century and Contemporary Cocktail Rings

Materials

White Diamond, Platinum

GIA Half Moon Diamond Rose Cut Charm Pendant in 18K Yellow Gold Black Rhodium
Located in Los Angeles, CA
Gorgeous 2.93 ct. white diamond rose cut half moon shape. Handmade in 18k yellow gold and black rhodium. Comes with GIA certificate.
Category

21st Century and Contemporary Pendant Necklaces

Materials

Diamond, Yellow Gold, Rhodium

Emerald Oval Cabochon Ring in 18K Yellow Gold
Located in Los Angeles, CA
Beautiful 3.04 ct. emerald oval cabochon. Handmade in 18k yellow gold. Ring size 6.25.
Category

21st Century and Contemporary Cocktail Rings

Materials

Emerald, Yellow Gold

GIA Emerald Cut and Brown Round Diamond Ball Chain Necklace in 14K Yellow Gold
Located in Los Angeles, CA
Beautiful and fun necklace with 0.90 ct. K VVS2 white diamond emerald cut and a 0.70 ct. brown diamond round. Handmade in 18k yellow gold. Length is 17". Comes with GIA certificate.
Category

21st Century and Contemporary Chain Necklaces

Materials

Diamond, Yellow Gold

GIA 0.70 Carat Each Oval Diamond Eternity Band in 18K White Gold
Located in Los Angeles, CA
Beautiful 9.13 ct. GHI VS-SI white diamond ovals. Total of 13 stones, each one is 0.70 ct. Handmade in 18k white gold. Ring size 6. GIA certificates included.
Category

21st Century and Contemporary Band Rings

Materials

Diamond, White Gold

White Diamond Round Half Tennis and Paperclip Necklace in 14K Yellow Gold
Located in Los Angeles, CA
Beautiful 5.37 ct. good quality white diamond rounds. Handmade in 14k yellow gold. Length is 16".
Category

21st Century and Contemporary Chain Necklaces

Materials

White Diamond, Yellow Gold

White Diamond Round Inside Out Hoop Earrings in 18K Yellow Gold
Located in Los Angeles, CA
Gorgeous 6.43 ct. good quality white diamond rounds. Total of 16 stones. Handmade in 18k yellow gold.
Category

21st Century and Contemporary Hoop Earrings

Materials

White Diamond, Yellow Gold

Citrine and White Diamond Dangle Earrings in 18K Yellow Gold
Located in Los Angeles, CA
Gorgeous 22.70 ct. citrine pear shapes with 0.62 ct. white diamond rounds. The diamonds are GIA certified H VS-SI stones. Handmade in 18k yellow gold.
Category

21st Century and Contemporary Dangle Earrings

Materials

Citrine, White Diamond, Yellow Gold

Citrine Heart Pendant Necklace in 18K Yellow Gold
Located in Los Angeles, CA
Beautiful 1.60 ct. citrine heart shape in a handmade 18k yellow gold bezel. Total length is 16.5".
Category

21st Century and Contemporary Pendant Necklaces

Materials

Citrine, Yellow Gold

C. Dunaigre 4 Carat Colombian Emerald Octagon and White Diamond Ring
Located in Los Angeles, CA
Gorgeous 4.34 ct. C. Dunaigre certified Colombian emerald emerald cut with good quality, white, and bright diamond trapezoids, baguettes, and rounds. Handmade in 18k white gold. Ri...
Category

21st Century and Contemporary Cocktail Rings

Materials

White Diamond, Emerald, 18k Gold

GIA Colombian Emerald and White Diamond Three Stone Ring
Located in Los Angeles, CA
Gorgeous 11.63 ct. Colombian emerald emerald cut with 1.82 ct. good quality white diamond trillions. Handmade in 18k yellow gold and platinum. Ring size 5.75. GIA certificate is i...
Category

21st Century and Contemporary Three-Stone Rings

Materials

White Diamond, Emerald, 18k Gold, Platinum

GIA Emerald Cut White Diamond Cross Pendant Necklace in 18K White Gold
Located in Los Angeles, CA
Gorgeous 4.91 ct. IJ VVS-VS white diamond emerald cuts. Each stone is 0.70 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

White Diamond Round Tennis Necklace in 14K White Gold
Located in Los Angeles, CA
Beautiful 9.01 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

4 Carat Emerald Octagonal Bezel Ring in 18K Yellow Gold
Located in Los Angeles, CA
Beautiful 4.15 ct. emerald emerald cut. Handmade in 18k yellow gold. Ring size 6.5.
Category

21st Century and Contemporary Cocktail Rings

Materials

Emerald, Yellow Gold

GIA 1 Carat Each Heart White Diamond Tennis Bracelet in 18K White Gold
Located in Los Angeles, CA
Gorgeous 26.22 ct. HI SI white diamond hearts. Total of 26 stones, each one is 1.00 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

5 Carat Emerald Cushion Ring in 18K Yellow Gold
Located in Los Angeles, CA
Beautiful 5.09 ct. emerald cushion. Handmade in 18k yellow gold. Ring size 6.5.
Category

21st Century and Contemporary Solitaire Rings

Materials

Emerald, Yellow Gold

Andalusite and Multi-Shape Diamond Multi-Strand Necklace in 18K White Gold
Located in Los Angeles, CA
Gorgeous 445.00 ct. andalusite beads with 2.61 ct. multi color diamond rounds and squares. Hand strung and handmade in 18k white gold. Length is 16".
Category

21st Century and Contemporary Multi-Strand Necklaces

Materials

Diamond, White Gold

Ruby and White Diamond Emerald Cut Tennis Bracelet in 18K White Gold
Located in Los Angeles, CA
Stunning 15.52 ct. ruby emerald cuts with 7.23 ct. of H VVS1-VS2 white diamond emerald cuts. There are 24 pieces of each stone. Handmade in 18k white gold. Length is 7". White di...
Category

21st Century and Contemporary Tennis Bracelets

Materials

White Diamond, Ruby, White Gold

5 Carat Emerald Pear Shape Pendant Necklace in 18K Yellow Gold
Located in Los Angeles, CA
Gorgeous 5.20 ct. emerald pear shape pendant necklace. Handmade in 18k yellow gold. Length is 16".
Category

21st Century and Contemporary Pendant Necklaces

Materials

Emerald, Yellow Gold

Emerald in Emerald Cut Bezel Satin Finish Necklace in 18K Yellow Gold
Located in Los Angeles, CA
Beautiful 5.90 ct. emerald cut emerald in a satin finish bezel and prong pendant. Handmade in 18k yellow gold. Length of chain is 18".
Category

21st Century and Contemporary Pendant Necklaces

Materials

Emerald, Yellow Gold

Ruby Pear Shape Bezel Pendant Necklace in 18K Yellow Gold
Located in Los Angeles, CA
Beautiful 2.67 ct. bright red ruby pear shape. Handmade in 18k yellow gold. Length is 16".
Category

21st Century and Contemporary Pendant Necklaces

Materials

Ruby, Yellow Gold

White Diamond Round and Baguette Leaf Design Ring in Black Rhodium 14K Gold
Located in Los Angeles, CA
Beautiful ring with good quality, white, and bright diamond rounds and baguettes. Handmade in 14k white gold and black rhodium. Ring size 6.
Category

21st Century and Contemporary Fashion Rings

Materials

White Diamond, 14k Gold, Rhodium

GIA Emerald Cut White Diamond Cross Pendant Necklace in 18K White Gold
Located in Los Angeles, CA
Gorgeous 5.90 ct. HIJ VVS-VS white diamond emerald cuts. Each stone is 0.80 to 0.90 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 Cushion Cross Pendant Necklace in 18K White Gold
Located in Los Angeles, CA
Gorgeous 8.03 ct. JK VS-SI white diamond cushions. Total of 8 stones, each one is 1.00 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

Old European Diamond Eternity Band Ring in Platinum
Located in Los Angeles, CA
Beautiful 3.80 ct. old European diamonds. Handmade in platinum. Ring size 6.5.
Category

21st Century and Contemporary Band Rings

Materials

Diamond, Platinum

Tanzanite Oval Pendant in 14K Yellow Gold Ball Chain
Located in Los Angeles, CA
Beautiful 4.91 ct. tanzanite oval. Handmade in 18k yellow gold. Length is 18".
Category

21st Century and Contemporary Pendant Necklaces

Materials

Tanzanite, Yellow Gold

GIA 1 Carat Each White Diamond Emerald Cut Cross Pendant Necklace in 18K
Located in Los Angeles, CA
Beautiful 8.00 ct. K VVS-VS white diamond emerald cuts. Total of 8 stones, each one is 1 carat. Handmade in 18k white gold. Length is 18". All stones come with GIA certificates.
Category

21st Century and Contemporary Pendant Necklaces

Materials

White Diamond, 18k Gold

GIA 2 Carat White Diamond Hexagon Solitaire Ring in Platinum
Located in Los Angeles, CA
Beautiful 2.17 ct. I VS1 white diamond hexagon shape. Handmade in platinum. Ring size 6. Comes with a GIA certificate.
Category

21st Century and Contemporary Solitaire Rings

Materials

White Diamond, Platinum

GIA 2 Carat Princess Cut White Diamond Ring in 18K Yellow Gold
Located in Los Angeles, CA
Beautiful 2.07 ct. D SI1 white diamond princess cut. Handmade in 18k yellow gold. Ring size 6.5. Comes with GIA certificate.
Category

21st Century and Contemporary Solitaire Rings

Materials

White Diamond, Yellow Gold

GIA Emerald Cut Diamond Eternity Bezel Band Ring in 18K Yellow Gold
Located in Los Angeles, CA
Gorgeous 4.02 ct. I_J VVS-VS white diamond emerald cuts. Total of 13 stones, each one is 0.30-0.40 ct. each. Each stone comes with a GIA certificate. Handmade in 18k yellow gold. ...
Category

21st Century and Contemporary Band Rings

Materials

Diamond, Yellow Gold

White Pearl and White Diamond Floral Earrings in Black Rhodium
Located in Los Angeles, CA
Beautiful earrings featuring white round pearls and good quality, white, and bright diamond rounds. Clip on with post. Handmade in 14k.
Category

21st Century and Contemporary Lever-Back Earrings

Materials

White Diamond, Pearl, Rhodium

GIA 7 Carat Burma Pink Oval Sapphire and White Oval Diamond Ring in Platinum
Located in Los Angeles, CA
Gorgeous bright pink 7.10 ct. Burma sapphire oval with 1.41 ct. EF SI white diamond ovals. Handmade in platinum. Ring size 6.5. Diamonds come with GIA certificates.
Category

21st Century and Contemporary Three-Stone Rings

Materials

Diamond, Sapphire, Platinum

GIA Unheated Very Light Orange Sapphire and Diamond Ring in 18K Black Rhodium
Located in Los Angeles, CA
Beautiful unheated 10.08 ct. very light orange sapphire octagon with 1.06 ct. good quality white diamond rounds. Handmade in 18k rose gold and black rhodium. Ring size 6.5. Comes ...
Category

21st Century and Contemporary Cocktail Rings

Materials

Diamond, Sapphire, Rhodium

White Diamond Chunky Semi Hoops in 18k White Gold Black Rhodium
Located in Los Angeles, CA
Beautiful 2.75 ct. good quality white diamond rounds handmade in 18k white gold and black rhodium chunky semi hoops. Perfect for everyday or a special occasion.
Category

21st Century and Contemporary Hoop Earrings

Materials

White Diamond, White Gold

GIA 1.50 Carat White Cushion Diamond Ring in 14K Yellow Gold
Located in Los Angeles, CA
Beautiful 1.53 ct. H SI1 white diamond cushion. Handmade in 14k yellow gold. Ring size 6.75. Comes with GIA certificate.
Category

21st Century and Contemporary Solitaire Rings

Materials

Diamond, Yellow Gold

GIA 6 Carat Pink Oval Sapphire Oval Diamond Ring in 18K White Rose Gold
Located in Los Angeles, CA
Gorgeous 6.05 ct. pink sapphire oval with 2.08 ct. good quality white diamond. Handmade in 18k white and rose gold. Ring size 6.75. Comes with a GIA certificate.
Category

21st Century and Contemporary Cocktail Rings

Materials

Diamond, Sapphire, Rose Gold, White Gold

GIA Asscher Cut White Diamond Eternity Band in 18K Yellow Gold Black Rhodium
Located in Los Angeles, CA
Beautiful 9.07 ct. I-J VVS-SI white diamond asscher cuts. Total of 10 stones. Each stone is about 0.90 ct. Handmade in 18k yellow gold and black rhodium. Ring size 7. All stone...
Category

21st Century and Contemporary Band Rings

Materials

White Diamond, Yellow Gold, Rhodium

GIA White Diamond Round Tennis Necklace in Black Rhodium 18K Yellow Gold
Located in Los Angeles, CA
Gorgeous 21.60 ct. I VVS-SI white diamond rounds. Total of 72 stones, each one is 0.30 ct. Each stone comes with a GIA certificate. Handmade in black rhodium and 18k yellow gold. ...
Category

21st Century and Contemporary Link Necklaces

Materials

White Diamond, Yellow Gold, Rhodium

GIA 1.50 Carat French Cut Diamond Ring in Black Rhodium 18K Yellow Gold
Located in Los Angeles, CA
Beautiful 1.51 ct. F VS2 white diamond French cut. Handmade in 18k yellow gold and black rhodium. Ring size 6. Comes with GIA certificate.
Category

21st Century and Contemporary Solitaire Rings

Materials

Diamond, Yellow Gold, Rhodium

GIA Yellow Radiant, Oval and Pear Shape Diamond Bracelet in 18K Yellow Gold
Located in Los Angeles, CA
Stunning 13.80 ct. S-Z VVS-SI oval, pear, and radiant diamonds. Handmade in 18k yellow gold. Length is 7". Each stone comes with a GIA certificate.
Category

21st Century and Contemporary Modern Bracelets

Materials

Diamond, Yellow Gold

GIA 1 Carat Each Pear and Marquise Diamond Crawler Earrings in 18K White Gold
Located in Los Angeles, CA
Absolutely amazing 15.27 ct. white diamond pear and marquise cluster crawler earrings. Total of 16 stones, all just around 1 ct. Handmade in 18k white gold. All stones come with G...
Category

21st Century and Contemporary Lever-Back Earrings

Materials

Diamond, White Gold

5 Carat Orange Oval Sapphire and Half Moon Baguette Diamond Ring in 18K
Located in Los Angeles, CA
Gorgeous bright 5.50 ct. orange sapphire oval with good quality white diamond half moon shapes, baguettes, and rounds. Handmade in 18k white gold. Ring size 6.75.
Category

21st Century and Contemporary Three-Stone Rings

Materials

Diamond, Sapphire, 18k Gold

GIA No Heat Mozambique 5 Carat Ruby Oval and White Diamond Ring in 18K
Located in Los Angeles, CA
Beautiful 5.20 ct. Unheated Mozambique ruby oval with good quality white diamond rounds. Handmade in 18k yellow. Ring size 7. Comes with GIA certificate.
Category

21st Century and Contemporary Cocktail Rings

Materials

White Diamond, Ruby, 18k Gold

Carved Emerald Dangle Earrings in 18K Yellow Gold
Located in Los Angeles, CA
Beautiful 100.00 ct. carved emeralds. Handmade in 18k yellow gold.
Category

21st Century and Contemporary Dangle Earrings

Materials

Emerald, Yellow Gold

GIA Sri Lanka Blue Sapphire and White Diamond Ring in 18K White Gold
Located in Los Angeles, CA
Beautiful 4.48 ct. Sri Lanka blue sapphire oval with 0.56 ct. good quality white diamond rounds. Handmade in 18k white gold. Ring size 7. GIA certificate included.
Category

21st Century and Contemporary Cocktail Rings

Materials

White Diamond, Blue Sapphire, White Gold

GIA 6 Carat White Diamond Radiant Ring in 18K Yellow Gold
Located in Los Angeles, CA
Gorgeous 6.02 ct. K VS2 white diamond radiant. Handmade in 18k yellow gold. Ring size 6.25. Comes with GIA certificate.
Category

21st Century and Contemporary Solitaire Rings

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.