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GIA Fancy Deep Orangy Yellow Diamond Pear Shape Snake Ring in 18K Yellow Gold
Located in Los Angeles, CA
Gorgeous 1.43 ct. fancy deep orangy yellow pear shape diamond. Ring size 7.25. Handmade in 18k yellow gold. GIA certificate included.
Category

21st Century and Contemporary Solitaire Rings

Materials

Yellow Diamond, Yellow Gold

White Diamond Briolette Cluster Open Bangle in 18K Yellow Gold
Located in Los Angeles, CA
Beautiful 5.04 ct. good quality, white, and bright diamond briolettes. handmade in 18k yellow and white gold. The cluster design features 32 gorgeous stones. Adjustable to fit any...
Category

21st Century and Contemporary Bangles

Materials

White Diamond, Yellow Gold

White South Sea Round Pearl, White Diamond, and Black Onyx Cocktail Ring in 18k
Located in Los Angeles, CA
Gorgeous 16.7 mm South Sea round white pearl with 1.16 carats of good quality white diamonds and black onyx in 18k white gold. South Sea pearl is a beautiful white with no markings....
Category

21st Century and Contemporary Cocktail Rings

Materials

Diamond, White Diamond, Onyx, Natural Pearl, 18k Gold, White Gold

Black and White Diamond Pendant Necklace in 14K White Gold
Located in Los Angeles, CA
Beautiful big black diamond pear shape with good quality white diamond rounds. Handmade in 14k white gold. Length is 18.5".
Category

21st Century and Contemporary Pendant Necklaces

Materials

White Diamond, Black Diamond, White Gold

Imperial Topaz and White Diamond Spray Earrings in 18K Rose Gold
Located in Los Angeles, CA
Gorgeous big Imperial topaz pear shapes with good quality, white, and bright diamond rounds. Handmade in 18k rose gold. These spray earrings are elevated and beautiful.
Category

21st Century and Contemporary Stud Earrings

Materials

White Diamond, Topaz, Imperial Topaz, Rose Gold

H. Stern Citrine and White Diamond Dangle Earrings in 18kyg
By H. Stern
Located in Los Angeles, CA
Stunning estate H. Stern earrings featuring 2.44 ct. citrines in a novelty cut with 5.50 ct. of black diamond rounds.
Category

21st Century and Contemporary Dangle Earrings

Materials

Black Diamond, Citrine, 18k Gold

Emerald Dangle Earrings in 18K Yellow Gold
Located in Los Angeles, CA
Beautiful emerald earrings with 11.00 ct. good quality emerald cut emeralds in a handmade 18k yellow gold bezel.
Category

21st Century and Contemporary Dangle Earrings

Materials

Emerald, Yellow Gold

Estate Gucci Amethyst and White Diamond Necklace and Earring Set
By Gucci
Located in Los Angeles, CA
Gorgeous estate Gucci amethyst beads and oval cabochons with good quality white diamond rounds. Handmade in 18k yellow gold.
Category

21st Century and Contemporary Beaded Necklaces

Materials

Amethyst, White Diamond, 18k Gold

GIA White Diamond Round Half Carat Each Tennis Necklace in 18K White Gold
Located in Los Angeles, CA
Gorgeous 37.10 ct. IJ VS2-SI2 white diamond rounds. Handmade in 18k white gold. Length 15". All stones are GIA certified. Total of 73 stones, each one is 0.50 ct.
Category

21st Century and Contemporary Link Necklaces

Materials

White Diamond, White Gold

Emerald Marquise and White Round Diamond Cocktail Ring in 18K 2 Tone Gold
Located in Los Angeles, CA
Beautiful 4.75 ct. emerald marquise with good quality white diamond rounds. Handmade in 18k white and yellow gold. Ring size 7.
Category

21st Century and Contemporary Cocktail Rings

Materials

Diamond, Emerald, Gold

White Diamond Tennis Necklace in 14K White Gold
Located in Los Angeles, CA
Beautiful 10.09 ct. good quality, white and bright diamond rounds. Total of 147 stones. Length is 16". Handmade in 14k white gold.
Category

21st Century and Contemporary Link Necklaces

Materials

White Diamond, White Gold

White Diamond Tennis Necklace in 14K White Gold
Located in Los Angeles, CA
Gorgeous 19.25 ct. good quality, white, and bright diamond rounds. Total of 102 stones, length is 16". Handmade in 14k white gold.
Category

21st Century and Contemporary Link Necklaces

Materials

White Diamond, White Gold

Estate Valentin Magro Brooch in 18K Yellow Gold
By Valentin Magro
Located in Los Angeles, CA
Beautiful large square citrine cushion with good quality white diamond rounds. Handmade in 18k yellow gold.
Category

21st Century and Contemporary Brooches

Materials

Diamond, Yellow Gold

White Diamond 3 Prong Tennis Necklace in 14K White Gold
Located in Los Angeles, CA
Beautiful 16.76 ct. good quality white diamond rounds. Handmade in 14k white gold. Length is 16".
Category

21st Century and Contemporary Link Necklaces

Materials

White Diamond, White Gold

Yellow Diamond Heart Bracelet in 18K Yellow Gold
Located in Los Angeles, CA
Gorgeous 15.65 ct. yellow diamond heart shapes. Handmade in 18k yellow gold. Length is 7". Total of 30 stones.
Category

21st Century and Contemporary Modern Bracelets

Materials

Yellow Diamond, Yellow Gold

GIA 0.60 ct. Each White Diamond Round Eternity Band Ring in 18K White Gold
Located in Los Angeles, CA
Beautiful 7.82 ct. IJ SI white diamond rounds. Total of 13 stones, each one is 0.60 ct. Ring size 6.5. Each stone comes with a GIA certificate. Handmade in 18k white gold.
Category

21st Century and Contemporary Band Rings

Materials

White Diamond, White Gold

GIA White Diamond Pear Shape in Black Rhodium Bezel and 18K Yellow Gold
Located in Los Angeles, CA
Gorgeous 3.20 ct. K VS2 white diamond pear shape. Handmade in 18k yellow gold and black rhodium. GIA certificate included. Ring size 6.5.
Category

21st Century and Contemporary Solitaire Rings

Materials

White Diamond, Yellow Gold, Rhodium

GIA 0.70 Carat Each White Diamond Heart Eternity Band Ring in 18K White Gold
Located in Los Angeles, CA
Stunning 8.52 ct. GH VVS-VS white diamond hearts. Total of 12 stones, each one is 0.70 ct. Comes with GIA certificates. Handmade in 18k white gold. Ring size 6.75.
Category

21st Century and Contemporary Band Rings

Materials

White Diamond, White Gold

GIA White Diamond Pear Shape .90-1 Carat Each Cluster Earrings in 18K White Gold
Located in Los Angeles, CA
Gorgeous 9.42 ct. IJ VS2-SI2 white diamond pear shape cluster earrings. Total of 10 stones, 0.90 - 1.00 ct. each. Handmade in 18k white gold. All stones have a GIA certificate.
Category

21st Century and Contemporary Lever-Back Earrings

Materials

White Diamond, White Gold

GIA White Diamond Pear 0.90-1 Carat Each Cluster Earrings in 18K White Gold
Located in Los Angeles, CA
Gorgeous 9 carat white diamond pear shapes. Total of 10 stones, each one is 0.90 - 1.00 ct. Handmade in 18k white gold. All stones have a GIA certificate.
Category

21st Century and Contemporary Lever-Back Earrings

Materials

White Diamond, White Gold

Emerald Cushion Paper Clip Chain Pendant Necklace in 14K Yellow Gold
Located in Los Angeles, CA
Beautiful 3.43 ct. emerald cushion. Handmade in 14k yellow gold. Length is 18".
Category

21st Century and Contemporary Pendant Necklaces

Materials

Emerald, Yellow Gold

White Diamond Emerald Cut, Baguette and Round Ring in 18K White Gold
Located in Los Angeles, CA
Beautiful 1.00 ct. white diamond emerald cut, baguette and round ring. Handmade in 18k white gold. Ring size 5.5.
Category

21st Century and Contemporary Solitaire Rings

Materials

White Diamond, White Gold

GIA White Diamond Round 0.90 Carat Each Tennis Bracelet in 18K White Gold
Located in Los Angeles, CA
Stunning 25.22 ct. JK SI white diamond rounds. Total of 28 stones, each stone is 0.90 ct. Handmade in 18k white gold. Length is 7". All stones come with a GIA certificate.
Category

21st Century and Contemporary Tennis Bracelets

Materials

White Diamond, White Gold

GIA White Diamond Heart Shape 0.50 Carat Each Tennis Bracelet in 18K White Gold
Located in Los Angeles, CA
Beautiful 16.09 ct. GHI VS-SI white diamond heart shapes. Total of 32 stones, each stone is 0.50 ct. Handmade in 18k white gold. Length is 7.25". Each stone comes with a GIA cert...
Category

21st Century and Contemporary Tennis Bracelets

Materials

White Diamond, White Gold

GIA White Diamond Round Stud Earrings in 18K White Gold
Located in Los Angeles, CA
Beautiful 3.01 ct. K VS1-VS2 white diamond round studs. Handmade in 18k white gold, push back setting. GIA certificates included.
Category

21st Century and Contemporary Stud Earrings

Materials

White Diamond, White Gold

GIA Emerald Cut White Diamond Riviera Necklace 18K White Gold
Located in Los Angeles, CA
Gorgeous 52.58 ct. IJ IF-VS2 white diamond emerald cuts. Total of 88 stones. Handmade in 18k white gold. Length is 15". GIA certificates on all stones included.
Category

21st Century and Contemporary Link Necklaces

Materials

White Diamond, White Gold

White Diamond Round Tennis Bracelet in 18K White Gold
Located in Los Angeles, CA
Gorgeous 17.35 ct. good quality, white, and bright diamond rounds. Total of 34 stones, each one is 0.70 ct. Handmade in 18k white gold. Length is 7".
Category

21st Century and Contemporary Tennis Bracelets

Materials

White Diamond, White Gold

GIA 1 Carat Each Asscher Cut Diamond Eternity Band in 18K White Gold
Located in Los Angeles, CA
Gorgeous 13.08 ct. HI VVS-VS white diamond asscher cuts. Total of 13 stones, 1 carat each. Handmade in 18k white gold. Ring size 6.5. GIA certificates included.
Category

21st Century and Contemporary Band Rings

Materials

Diamond, White Gold

Mabe White Pearl with Round Diamond Lever Back Earrings in 14K Yellow Gold
Located in Los Angeles, CA
Beautiful lever back earrings with 2 round mabe pearls and 0.20 ct. good quality white diamond rounds. Handmade in 14k yellow gold.
Category

21st Century and Contemporary Lever-Back Earrings

Materials

Diamond, Pearl, Yellow Gold

Natural Pink Diamond Princess Cut and White Diamond Engagement Ring in Platinum
Located in Los Angeles, CA
Beautiful natural pink diamond princess cut weighing 0.42 ct. with 0.36 ct. good quality white diamond rounds and baguettes. Platinum handmade mounting in ring size 5.
Category

21st Century and Contemporary Bridal Rings

Materials

White Diamond, Pink Diamond, Platinum

GIA White Diamond Asscher Cut 0.70 Carats Each Bracelet in 18K White Gold
Located in Los Angeles, CA
Gorgeous 16.82 ct. GH IF-VS2 white diamond asscher cuts. Total of 22 stones, 0.70 ct. each. Handmade in 18k white gold. Length is 7". Each stone has a GIA certificate. This brac...
Category

21st Century and Contemporary Tennis Bracelets

Materials

White Diamond, White Gold

White Diamond Round Paper Clip Necklace in 14K Yellow Gold
Located in Los Angeles, CA
Beautiful 2.10 ct. good quality, white, and bright diamond rounds. Handmade in 14k yellow gold. Total of 11 stones. A great classic piece that can be worn on it's own or stacked wit...
Category

21st Century and Contemporary Chain Necklaces

Materials

White Diamond, Yellow Gold

White Diamond Round Paper Clip Necklace in 14K Yellow Gold
Located in Los Angeles, CA
Beautiful 3.25 ct. good quality, white, and bright diamond rounds. Handmade in 14k yellow gold. Total of 13 stones. A great classic piece that can be worn on it's own or stacked wi...
Category

21st Century and Contemporary Link Necklaces

Materials

White Diamond, Yellow Gold

White Diamond Pave In Out Earrings in 18K Yellow Gold
Located in Los Angeles, CA
Beautiful 3.54 ct. good quality white diamond pave. Handmade in 18k yellow gold.
Category

21st Century and Contemporary Hoop Earrings

Materials

White Diamond, Yellow Gold

White Diamond and Onyx Fluted Earrings in 18K Yellow Gold
Located in Los Angeles, CA
Beautiful 4.00 ct. good quality, white, and bright diamond rounds with fluted onyx. Handmade in 18k yellow gold. Lever back with post for pierced ears.
Category

21st Century and Contemporary Lever-Back Earrings

Materials

White Diamond, Onyx, Yellow Gold

White Diamond Briolette and Rose Cut Floral Cluster Ring in 18K White Gold
Located in Los Angeles, CA
Beautiful 4.22 ct. good quality, white and bright white diamond briolettes and rose cut diamond. Handmade in 18k white gold. Ring size 7.5.
Category

21st Century and Contemporary Fashion Rings

Materials

White Diamond, White Gold

GIA White Diamond Asscher Cut Dangle Earrings in 18K Yellow Gold
Located in Los Angeles, CA
Beautiful 3 carat white diamond asscher cuts. Handmade in 18k yellow gold. GIA certificates are included.
Category

21st Century and Contemporary Dangle Earrings

Materials

White Diamond, Yellow Gold

GIA White Diamond Cushion Cut Dangle Earrings in 18K Yellow Gold Black Rhodium
Located in Los Angeles, CA
Gorgeous 3.04 ct. HI VS2 white diamond cushions. Handmade in 18k yellow and black rhodium. GIA certificates included.
Category

21st Century and Contemporary Dangle Earrings

Materials

White Diamond, Yellow Gold, Rhodium

GIA Asscher Cut Diamond Dangle Earrings in 18K White Gold
Located in Los Angeles, CA
Beautiful 5.64 ct. H VVS white diamond asscher cuts. Total of 8 stones, each one weighs 0.70 ct. All stones have a GIA certificate. Handmade in 18k white gold. Lever back setting.
Category

21st Century and Contemporary Drop Earrings

Materials

Diamond, White Gold

Yellow Sapphire and White Diamond Earrings in 18k Two Tone Gold
Located in Los Angeles, CA
Beautiful 1.94 ct. yellow sapphire rounds with 1.01 ct. good quality white diamond pear shapes. Handmade in 18k white and yellow gold.
Category

21st Century and Contemporary Stud Earrings

Materials

White Diamond, Yellow Sapphire, Gold

GIA White Diamond Marquise 0.50 ct. Each Tennis Bracelet in 18K White Gold
Located in Los Angeles, CA
Gorgeous 19.58 ct. DEF VVS-VS white diamond marquise shapes. Total of 37 stones, each stone is 0.50 ct. Handmade in 18k white gold. Length is 7". All stones are GIA certified.
Category

21st Century and Contemporary Tennis Bracelets

Materials

White Diamond, White Gold

GIA White Diamond Asscher Cut 0.70 Carats Each Tennis Bracelet in 18K White Gold
Located in Los Angeles, CA
Gorgeous 16.17 ct. DEF VVS-VS white diamond asscher cuts. Total of 23 stones, each stone weighs 0.70 ct. Handmade in 18k white gold. Length is 7". All stones have a GIA certificate.
Category

21st Century and Contemporary Tennis Bracelets

Materials

White Diamond, White Gold

GIA Old European Round Diamond Ring in Platinum
Located in Los Angeles, CA
Gorgeous 1.06 ct. L color I2 clarity old Euro white diamond round. Handmade in platinum. Ring size 5.75. GIA certificate included.
Category

21st Century and Contemporary Solitaire Rings

Materials

Diamond, Platinum

White Diamond Pave Heart Pendant Necklace in 18k Gold
Located in Los Angeles, CA
Beautiful 0.50 ct. good quality, white, and bright diamond rounds make up this pave heart pendant. Handmade in 18k white gold. Length is 18".
Category

21st Century and Contemporary Pendant Necklaces

Materials

White Diamond, 18k Gold

White Diamond Bezel Station Necklace in 14K Yellow Gold
Located in Los Angeles, CA
Beautiful necklace with 1.00 ct. of good quality, white, and bright diamond rounds. Total of 11 stones. Handmade in 14k yellow gold. Length is 18". Available in 14k white gold also.
Category

21st Century and Contemporary Chain Necklaces

Materials

White Diamond, Yellow Gold

Three Stone Round Diamond Pendant Necklace in 14k White Gold
Located in Los Angeles, CA
Beautiful 0.10 ct. good quality white diamond rounds in a handmade 14k white gold mounting. Length of chain is 16".
Category

21st Century and Contemporary Pendant Necklaces

Materials

Diamond, White Gold

Old Mine Cushion Diamond Solitaire Ring in 18K Yellow Gold Black Rhodium
Located in Los Angeles, CA
Stunning 20.66 ct. old mine white diamond cushion cut. Handmade in 18k yellow gold and black rhodium. Ring size is 6.75. This ring is a showstopper!
Category

21st Century and Contemporary Solitaire Rings

Materials

Diamond, Yellow Gold, Rhodium

Natural Yellow Diamond Marquise Band Ring in 18K Yellow Gold
Located in Los Angeles, CA
Gorgeous 7.73 ct. natural yellow diamond marquise shapes. Total of 9 stones. Ring size 6.75.
Category

21st Century and Contemporary Band Rings

Materials

Yellow Diamond, Yellow Gold

White Diamond Floral Pendant Necklace in 18K White Gold
Located in Los Angeles, CA
Beautiful floral necklace with 0.50 ct. good quality white diamond rounds. Handmade in 18k white gold. Length of chain is 14".
Category

21st Century and Contemporary Pendant Necklaces

Materials

White Diamond, White Gold

GIA White Diamond Emerald Cut 2 Carats Each Dangle Earrings in 18K
Located in Los Angeles, CA
Beautiful 4.04 ct. white diamond emerald cut dangle earrings. Stones are about 2 ct. each L VS1-SI1. Handmade in 18k yellow and black rhodium gold. GIA certificates are included.
Category

21st Century and Contemporary Dangle Earrings

Materials

White Diamond, 18k Gold

Brown Diamond and White Diamond Pendant Necklace in Platinum
Located in Los Angeles, CA
Beautiful 1.07 ct. brown diamond pear shape with 0.16 ct. white diamond rounds. Handmade in platinum. Length of chain is 18".
Category

21st Century and Contemporary Pendant Necklaces

Materials

White Diamond, Brown Diamond, Platinum

White Diamond and Chain Necklace in 14K White Gold
Located in Los Angeles, CA
Beautiful necklace with 1.00 ct. good quality, white, and bright diamond rounds. Handmade in 14k white gold. Length is 18". Total of 10 stones. Available in yellow gold as well.
Category

21st Century and Contemporary Chain Necklaces

Materials

White Diamond, White Gold

GIA White Diamond Emerald Cut Eternity Band Ring in 18K White Gold
Located in Los Angeles, CA
Gorgeous 10.55 ct. IJ IF-VS2 white diamond emerald cuts. Total of 15 stones. Handmade in 18k white gold. Ring size 4.5. All stones have a GIA certificate that will be included.
Category

21st Century and Contemporary Band Rings

Materials

White Diamond, White Gold

Champagne Diamond Round Pendant Necklace in 14K Yellow Gold
Located in Los Angeles, CA
Beautiful pendant with 0.37 ct. good quality champagne diamond rounds. Handmade in 13k yellow and black rhodium. Length of chain is 18".
Category

21st Century and Contemporary Pendant Necklaces

Materials

Diamond, Yellow Gold

Estate Stefan Hafner White Diamond Dangle Earrings in 18K White Gold
By Stefan Hafner
Located in Los Angeles, CA
Stunning estate Stefan Hafner 13.70 ct. good quality white diamond rounds and pear shapes. Handmade in 18k white gold. Matching necklace is available!
Category

21st Century and Contemporary Dangle Earrings

Materials

White Diamond, White Gold

Estate Stefan Hafner White Diamond Necklace in 18K White Gold
By Stefan Hafner
Located in Los Angeles, CA
Stunning estate Stefan Hafner 68.41 ct. good quality, white and bright round and pear shape diamonds. Handmade in 18k white gold. This necklace is ornate and well made. Matching e...
Category

21st Century and Contemporary Link Necklaces

Materials

White Diamond, White Gold

EGL White Diamond Cushion Ring in 18K Yellow Gold Black Rhodium
Located in Los Angeles, CA
Beautiful 4.32 ct. G SI2 white diamond cushion in handmade 18k yellow gold and black rhodium mounting. Ring size 6.5+. EGL report included.
Category

21st Century and Contemporary Solitaire Rings

Materials

White Diamond, Yellow Gold, Rhodium

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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.