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White Diamond Cluster Earrings in Platinum
Located in Los Angeles, CA
Beautiful 4.00 ct. white diamond rounds, marquises, and baguettes in these cluster earrings. Handmade in platinum. Lever back setting.
Category

21st Century and Contemporary Lever-Back Earrings

Materials

White Diamond, Platinum

1.95 Carat Ruby Oval and Round Diamond Ring in 14K Yellow Gold
Located in Los Angeles, CA
Beautiful 1.95 ct. ruby ovals with good quality white diamond rounds in this cluster ring. Handmade in 14k yellow gold. Ring size 7.5.
Category

21st Century and Contemporary Cluster Rings

Materials

Diamond, Ruby, Yellow Gold

5 Carat Emerald Oval and Diamond Trillion Ring in 18K 2 Tone Gold
Located in Los Angeles, CA
Gorgeous 5.61 ct. emerald oval with two white diamond trillions. Handmade in 18k yellow and white gold. Ring size 6.5.
Category

21st Century and Contemporary Three-Stone Rings

Materials

Diamond, Emerald, Gold

White Diamond Round Straight Bracelet in 14k Yellow Gold
Located in Los Angeles, CA
Beautiful straight bracelet with 4.00 ct. of good quality white diamond rounds. Handmade in 14k yellow gold. Length is 7.25".
Category

21st Century and Contemporary Tennis Bracelets

Materials

White Diamond, Yellow Gold

Aquamarine and White Diamond Pendant Necklace in 14K Yellow Gold
Located in Los Angeles, CA
Beautiful 5.30 ct. aquamarine pear shape with 0.60 ct. good quality white diamond rounds and baguettes. Handmade in 14k yellow gold. Length is 18".
Category

21st Century and Contemporary Pendant Necklaces

Materials

Aquamarine, White Diamond, Yellow Gold

Green Sphene Radiant and Diamond Cocktail Ring in 18k White Gold
Located in Los Angeles, CA
Gorgeous 10.95 ct. green sphene radiant and diamond round cocktail ring. Handmade in 18k white gold. Ring size is 6.5.
Category

21st Century and Contemporary Cocktail Rings

Materials

Diamond, White Gold

GIA 2 Carat White Diamond Oval Ring in 18K Yellow Gold
Located in Los Angeles, CA
Beautiful 2.02 ct. K SI2 white diamond oval with smaller good quality white diamond rounds. Handmade in 18k yellow gold. Ring size 4.75. Comes with GIA certificate. Ring can be r...
Category

21st Century and Contemporary Solitaire Rings

Materials

White Diamond, Yellow Gold

Estate Marlene Stowe Citrine Sugarloaf Earrings in 18K Yellow Gold
By Marlene Stowe
Located in Los Angeles, CA
Beautiful 12.80 ct. citrine sugarloaf earrings. Handmade in 18k yellow gold. Signed Marlene Stowe.
Category

20th Century Lever-Back Earrings

Materials

Citrine, Yellow Gold

Emerald Oval and White Diamond Cocktail Ring in 18k Yellow Gold
Located in Los Angeles, CA
Stunning 11.74 ct. emerald oval with 0.67 ct. good quality white diamond rounds. Handmade in 18k yellow gold. Ring size 6.25.
Category

21st Century and Contemporary Cocktail Rings

Materials

White Diamond, Emerald, Yellow Gold

Turquoise Gold Ring in 14K Yellow Gold
Located in Los Angeles, CA
Beautiful turquoise ring handmade in 14k yellow gold. Ring size 6.5.
Category

21st Century and Contemporary Fashion Rings

Materials

Turquoise, Yellow Gold

18k Yellow Gold Necklace
Located in Los Angeles, CA
Beautiful necklace handmade in 18k yellow gold. Length is 18".
Category

21st Century and Contemporary Link Necklaces

Materials

Yellow Gold

Charm Bracelet in 14K Yellow Gold
Located in Los Angeles, CA
Beautiful 14k yellow gold charm bracelet with the Eiffel Tower, shoes, and a lantern. French theme.
Category

21st Century and Contemporary Charm Bracelets

Materials

Yellow Gold

GIA White Diamond Emerald Cut Tennis Necklace in 18K White Gold
Located in Los Angeles, CA
Gorgeous 32.33 ct. GHI IF-VS2 white diamond emerald cuts. Total of 106 stones, weighing 0.30 ct. each. Handmade in 18k white gold. Length is 15". Each diamond comes with a GIA ce...
Category

21st Century and Contemporary Link Necklaces

Materials

White Diamond, White Gold

GIA Unheated Green Blue Sapphire and Diamond Cocktail Ring in 18k White Gold
Located in Los Angeles, CA
Gorgeous 4.26 ct. unheated green blue sapphire cushion with 0.50 ct. good quality white diamond rounds. Handmade in 18k white gold. Ring size is 4.75. GIA certificate included.
Category

21st Century and Contemporary Cocktail Rings

Materials

Diamond, Blue Sapphire, Green Sapphire, White Gold

Coral Oval Cabochon Ring in 18K Yellow Gold
Located in Los Angeles, CA
Beautiful coral oval cabochon in this handmade 18k yellow gold ring. Ring size 5.5.
Category

21st Century and Contemporary Cocktail Rings

Materials

Coral, Yellow Gold

Estate Katy Briscoe Amethyst Sugarloaf Earrings in 18K Yellow Gold
By Katy Briscoe
Located in Los Angeles, CA
Gorgeous estate Katy Briscoe amethyst sugarloaf earrings handmade in 18k yellow gold. Lever back.
Category

21st Century and Contemporary Lever-Back Earrings

Materials

Amethyst, Yellow Gold

Emerald Cut White Diamond Tennis Necklace in 18K White Gold
Located in Los Angeles, CA
Gorgeous 27.00 ct. white diamond emerald cuts. Handmade in 18k white gold. Length is 16.5".
Category

21st Century and Contemporary Link Necklaces

Materials

White Diamond, White Gold

Emerald and White Diamond Ring in 14K White Gold Platinum
Located in Los Angeles, CA
Beautiful ring that can be worn in two different ways. Emerald pear shape that weighs 1.01 ct. with 0.50 ct. good quality white diamond rounds and baguettes. Handmade in 14k white ...
Category

21st Century and Contemporary Fashion Rings

Materials

White Diamond, Emerald, White Gold, Platinum

Tanzanite and Diamond Necklace in 18k Yellow Gold
Located in Los Angeles, CA
Beautiful 3.14 ct. rectangular tanzanite with 2.00 ct. white diamond baguettes. Handmade in 18k yellow gold. Length is 16".
Category

21st Century and Contemporary Pendant Necklaces

Materials

Diamond, Tanzanite, Yellow Gold

Opal and White Diamond Pendant Necklace in Platinum
Located in Los Angeles, CA
Gorgeous 5.12 ct. black opal oval with 0.50 ct. good quality, white, and bright diamond rounds. Handmade in platinum. Length is 18".
Category

21st Century and Contemporary Pendant Necklaces

Materials

White Diamond, Opal, Platinum

Purple Spinel Cushion and White Diamond Baguette Three Stone Ring in Platinum
Located in Los Angeles, CA
Beautiful 3.97 ct. purple spinel cushion with 0.30 ct. good quality, white, and bright diamond baguettes. Handmade in platinum. Ring size 6.25.
Category

21st Century and Contemporary Three-Stone Rings

Materials

White Diamond, Spinel, Platinum

Estate Dankner Purple Sapphire and Diamond Cocktail Ring in 14k Yellow Gold
By Henry Dankner Sons
Located in Los Angeles, CA
Gorgeous 3.28 ct. purple sapphire oval with 0.10 ct. white diamond rounds. Handmade in 14k yellow gold. Ring size 3.75.
Category

21st Century and Contemporary Cocktail Rings

Materials

Diamond, Sapphire, Purple Sapphire, Yellow Gold

Tanzanite Marquise and White Diamond Round Cocktail Ring in Platinum
Located in Los Angeles, CA
Beautiful 1.78 ct. tanzanite marquise with 0.87 ct. good quality white diamond rounds. Handmade in platinum. Ring size 6.25.
Category

21st Century and Contemporary Cocktail Rings

Materials

White Diamond, Tanzanite, Platinum

Lavender Spinel and White Diamond Cocktail Ring in Platinum
Located in Los Angeles, CA
Beautiful lavender 3.53 ct. spinel cushion with 0.84 ct. good quality white diamond rounds. Handmade in platinum. Ring size 4.25.
Category

21st Century and Contemporary Cocktail Rings

Materials

Diamond, Spinel, Platinum

White South Sea Pearl and White Diamond Floral Ring in 18K White Gold
Located in Los Angeles, CA
Beautiful cocktail ring with a large white South Sea pearl and good quality white diamond rounds. Handmade in 18k white gold. Ring size 6.5.
Category

21st Century and Contemporary Fashion Rings

Materials

White Diamond, South Sea Pearl, White Gold

White and Black Diamond Earrings in 14k White Gold
Located in Los Angeles, CA
Beautiful 1.10 ct. white diamond rounds with 1.30 ct. black diamond rounds in this fun design. Handmade in 14k white gold. These earrings are a great addition to any jewelry collec...
Category

21st Century and Contemporary Lever-Back Earrings

Materials

Black Diamond, White Gold

Natural Yellow and White Diamond Band Ring in 18K White Gold
Located in Los Angeles, CA
Beautiful 1.53 ct. natural yellow and white diamond rounds. Handmade in 18k white gold. Ring size 6.75.
Category

21st Century and Contemporary Band Rings

Materials

White Diamond, White Gold

White Diamond Cluster Clip on Earrings in 14k White Gold
Located in Los Angeles, CA
Gorgeous 2.00 ct. good quality white and bright diamond rounds. Handmade in 14k white gold. These earrings are versatile and chic.
Category

21st Century and Contemporary Clip-on Earrings

Materials

White Diamond, White Gold

White Diamond Princess Cut Heart Pendant Necklace in 18k
Located in Los Angeles, CA
Beautiful 2.15 ct. good quality, white, and bright princess cut diamonds channel set in this heart shape pendant. Handmade in 18k white gold. Length is 16".
Category

21st Century and Contemporary Pendant Necklaces

Materials

White Diamond, 18k Gold

Purple Spinel and White Diamond Ring in 18K White Gold
Located in Los Angeles, CA
Beautiful 3.75 ct. purple spinel emerald cut with 0.60 ct. good quality white diamond rounds. Handmade in 18k white gold. Ring size 7.
Category

21st Century and Contemporary Cocktail Rings

Materials

White Diamond, Spinel, White Gold

White Seed Pearl and Diamond 11 Strand Necklace with 18k Gold Clasp
Located in Los Angeles, CA
Beautiful white seed pearls with 0.42 ct. good quality white diamond rounds. 11 strands with a handmade 18k yellow gold clasp.
Category

21st Century and Contemporary Multi-Strand Necklaces

Materials

Diamond, Pearl, 18k Gold

London Blue Topaz and Diamond Pendant Necklace in 18k Yellow Gold
Located in Los Angeles, CA
Beautiful 15.00 ct. London blue topaz pear shape with 0.40 ct. good quality white diamond rounds. Handmade in 18k yellow gold. Chain is 16" in length.
Category

21st Century and Contemporary Pendant Necklaces

Materials

Diamond, Topaz, Blue Topaz, Yellow Gold

AGL Colombian Emerald and Diamond Cocktail Ring in Platinum
Located in Los Angeles, CA
Absolutely stunning natural 11.02 ct. Colombian emerald emerald cut with 2.59 ct. excellent quality white diamond rounds. Handmade in platinum. Ring size 6.25. AGL certificate inc...
Category

21st Century and Contemporary Cocktail Rings

Materials

Diamond, Emerald, Platinum

Estate Judith Ripka White Diamond and Gold Bracelet
By Judith Ripka
Located in Los Angeles, CA
Beautiful Judith Ripka bracelet with 1.03 ct. good quality white diamond rounds and 18k yellow gold. Handmade and length is 7.25".
Category

21st Century and Contemporary Link Bracelets

Materials

White Diamond, Gold

White Diamond and 14k Yellow Gold Bangle
Located in Los Angeles, CA
Beautiful bangle with 0.60 ct. white diamond rounds. Handmade in 14k yellow gold.
Category

21st Century and Contemporary Bangles

Materials

White Diamond, Yellow Gold

White Diamond Dangle Earrings in 14k Rose Gold
Located in Los Angeles, CA
Gorgeous 0.60 ct. white diamond rounds. Handmade in 14k rose gold.
Category

21st Century and Contemporary Dangle Earrings

Materials

White Diamond, Rose Gold

GIA Aquamarine Cushion and Diamond Pendant Necklace in 18k White Gold
Located in Los Angeles, CA
Stunning 39.63 ct. GIA certified aquamarine square cushion with 0.50 ct. good quality white diamond oval H color, SI 1 clarity. The necklace also has good quality white diamond rou...
Category

21st Century and Contemporary Pendant Necklaces

Materials

Aquamarine, Diamond, White Gold

GIA Yellow Diamond Cushion Flawless with Pink and White Diamond Dangle Earrings
Located in Los Angeles, CA
Gorgeous 2.14 ct. fancy yellow flawless diamond cushions with pink and white diamond marquise and rounds. Handmade in 18k white and yellow gold. GIA certificates provided.
Category

21st Century and Contemporary Dangle Earrings

Materials

White Diamond, Yellow Diamond

Light Pink Kunzite and Diamond Cocktail Ring in 18k Yellow Gold
Located in Los Angeles, CA
Gorgeous large light pink kunzite oval with 0.05 ct. white diamond rounds and squares. Handmade in 18k yellow gold. Ring size 5.5.
Category

21st Century and Contemporary Cocktail Rings

Materials

Diamond, Kunzite, Yellow Gold

Blue Topaz Bezel Chain Necklace in 18k Yellow Gold
Located in Los Angeles, CA
Gorgeous blue topaz rounds in handmade 18k yellow gold bezels and chain. Length is 36". Can be worn in so many different lengths and ways. Very versatile and classy.
Category

21st Century and Contemporary Chain Necklaces

Materials

Topaz, Blue Topaz, Yellow Gold

White Diamond Contemporary Earrings in 14k Rose Gold
Located in Los Angeles, CA
Beautiful contemporary earrings that can be worn as a stud or with the spray diamonds under the lobe. Total of 0.20 ct. of good quality white diamond rounds. Handmade 14k rose gold...
Category

21st Century and Contemporary Dangle Earrings

Materials

White Diamond, Rose Gold

Amethyst Bezel Chain Necklace in 18k Yellow Gold
Located in Los Angeles, CA
Gorgeous amethyst rounds in handmade 18k yellow gold bezels and chain. Length is 36". Can be worn in so many different lengths and ways. Very versatile and classy.
Category

21st Century and Contemporary Chain Necklaces

Materials

Amethyst, Yellow Gold

Aquamarine Cushion and Diamond Cocktail Ring in 18k Two Tone Gold
Located in Los Angeles, CA
Gorgeous 14.10 ct. aquamarine cushion with 0.82 ct. good quality white diamond rounds. Handmade in 18k white and yellow gold. Ring size 6.5.
Category

21st Century and Contemporary Cocktail Rings

Materials

Aquamarine, Diamond, Gold

H. Stern Smoky Quartz Earrings in 18k Yellow Gold
By H. Stern
Located in Los Angeles, CA
Beautiful 6.50 ct. smokey quartz rectangular stones in handmade 18k yellow gold mountings.
Category

21st Century and Contemporary Stud Earrings

Materials

Quartz, Yellow Gold

GRS No Heat Sri Lanka Padparadscha Sapphire and Diamond Cocktail Ring in 18k
Located in Los Angeles, CA
Gorgeous 8.35 ct. GRS certified unheated Sri Lanka padparadscha sapphire oval with 1.70 ct. good quality white diamond rounds. Handmade in 18k white and rose gold. Ring size 7.5. ...
Category

21st Century and Contemporary Cocktail Rings

Materials

Diamond, Sapphire, Padparadscha Sapphire , 18k Gold

GIA Purple Pink Sapphire Cushion and Diamond Cocktail Ring in 18k Yellow Gold
Located in Los Angeles, CA
Absolutely stunning 10.07 ct. purple pink sapphire cushion with 0.30 ct. good quality white diamond rounds. Handmade in 18k yellow gold. GIA certificate included. Ring size 7.
Category

21st Century and Contemporary Cocktail Rings

Materials

Diamond, Pink Sapphire, Yellow Gold

H. Stern Diamond and Gold Band Ring in 18k
By H. Stern
Located in Los Angeles, CA
Beautiful H. Stern band ring with 0.01 ct. white diamond square. Handmade in 18k yellow gold. Ring size 7. Matching bracelet available.
Category

21st Century and Contemporary Band Rings

Materials

Diamond, Gold

H. Stern Diamond and Gold Chain
By H. Stern
Located in Los Angeles, CA
Beautiful H. Stern chain with 0.01 ct. diamond round. Handmade in 18k yellow gold. Length is 18".
Category

21st Century and Contemporary Chain Necklaces

Materials

Diamond, Gold

H. Stern Diamond and Gold Stacked Ring in 18k
By H. Stern
Located in Los Angeles, CA
Beautiful H. Stern stacked ring with 0.02 ct. white diamond princess cut. Handmade in 18k yellow gold. Ring size is 5.75.
Category

21st Century and Contemporary Band Rings

Materials

Diamond, Gold

H. Stern Dog Tag Diamond and 18k Gold Pendant Necklace
By H. Stern
Located in Los Angeles, CA
Beautiful H. Stern dog tag necklace with 0.01 ct. white diamond round. Handmade in 18k yellow gold. Length is 28".
Category

21st Century and Contemporary Pendant Necklaces

Materials

Diamond, 18k Gold

Kabana Pink Mother of Pearl and Diamond Necklace in 14k Rose Gold
Located in Los Angeles, CA
Beautiful Kabana necklace with pink mother of pearl and 0.11 ct. white diamond rounds. Handmade in 14k rose gold.
Category

21st Century and Contemporary American More Necklaces

Materials

Diamond, Pearl, Rose Gold

Tanzanite and Diamond Earrings in 14k Yellow Gold
Located in Los Angeles, CA
Gorgeous 1.50 ct. tanzanite triangles with 1.00 ct. good quality white diamond rounds. Handmade in 14k yellow gold.
Category

21st Century and Contemporary Stud Earrings

Materials

Diamond, Tanzanite, Yellow Gold

Unheated Color Change Sapphire Cushion and Diamond Cocktail Ring in Platinum
By Sophia D
Located in Los Angeles, CA
Gorgeous unheated 6.15 ct. color change sapphire cushion with 0.85 ct. good quality white diamond rounds. Handmade in platinum. Signed Sophia D. Ring size 6.25.
Category

21st Century and Contemporary Cocktail Rings

Materials

Diamond, Sapphire, Platinum

GIA Very Light Blue Diamond Cushion and White Diamond Ring in 18k White Gold
Located in Los Angeles, CA
GIA certified 1.33 ct. very light blue diamond cushion SI 1 quality. This diamond is beautiful with a great blue color. White diamond rounds are also good quality and weigh 0.81 ct...
Category

21st Century and Contemporary Engagement Rings

Materials

White Diamond, Blue Diamond, White Gold

H. Stern Flower and Diamond Bracelet in 18k Yellow Gold
By H. Stern
Located in Los Angeles, CA
Gorgeous H. Stern estate bracelet with flower beads and 0.01 ct. diamond round bezel in the middle. Handmade in 18k yellow gold. Length is 5.75".
Category

21st Century and Contemporary Link Bracelets

Materials

Diamond, Yellow Gold

Yellow and White Diamond Day and Night Dangle Earrings in 14k Gold
Located in Los Angeles, CA
Beautiful dangle day and night earrings with 4.35 ct. good quality white diamond and yellow diamond rounds. Both sides are not identical, they are opposite, making them day and nigh...
Category

21st Century and Contemporary Dangle Earrings

Materials

White Diamond, 14k Gold

Colombian Emerald and Diamond Earring Studs in 18k White Gold
Located in Los Angeles, CA
Absolutely gorgeous and clean 5.10 ct. Colombian emerald emerald cuts with 1.04 ct. good quality white diamond rounds. Handmade in 18k white gold.
Category

21st Century and Contemporary Stud Earrings

Materials

Diamond, Emerald, White 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.