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Turquoise and White Diamond Ring in Platinum
Located in Los Angeles, CA
Beautiful 2.12 ct. turquoise oval cabochon with 0.78 ct. good quality white diamond baguettes. Handmade in platinum. Ring size 5.25.
Category
21st Century and Contemporary Cocktail Rings
Materials
White Diamond, Turquoise, Platinum
GIA Thai Ruby Oval and White Diamond Three Stone Ring in 14k
Located in Los Angeles, CA
Beautiful 1.48 ct. Thai ruby oval with 0.15 ct. white diamond rounds. Handmade in 14k white and yellow gold. Ring size 4.25. GIA certificate included.
Category
21st Century and Contemporary Three-Stone Rings
Materials
White Diamond, Ruby, 14k Gold
Yellow Diamond Radiant Band Ring in 18k Yellow Gold
Located in Los Angeles, CA
Beautiful 1.60 ct. natural yellow diamond radiants handmade in 18k yellow gold. Ring size 6.25.
Category
21st Century and Contemporary Band Rings
Materials
Yellow Diamond, Yellow Gold
GIA Emerald Cut Diamond Ring in 18k White Gold
Located in Los Angeles, CA
Beautiful GIA 2.00 ct. emerald cut E color and VS1 clarity with good quality white diamond rounds as accents. Handmade in 18k white gold. Ring size 6.5. GIA certificate is included.
Category
21st Century and Contemporary Engagement Rings
Materials
Diamond, Emerald, White Gold
Visconti White Diamond Cluster Ring in 18k White Gold
By Visconti
Located in Los Angeles, CA
Beautiful 2.58 ct. white diamond rounds. Handmade in 18k white gold. Signed by Visconti. Ring size 9.
Category
21st Century and Contemporary Cluster Rings
Materials
White Diamond, White Gold
White Diamond Round Dangle Earrings in 18k White Gold
Located in Los Angeles, CA
Beautiful 2.55 ct. white diamond rounds in handmade 18k white gold earring mountings. Push back setting with clasp, for pierced ears but can made into clip on earrings easily.
Category
21st Century and Contemporary Dangle Earrings
Materials
White Diamond, White Gold
GIA White Diamond Bow Design Brooch in Platinum
Located in Los Angeles, CA
Gorgeous 1.01 ct. white diamond H VS2 round with smaller good quality white diamond rounds. Handmade in platinum. GIA certificate included.
Category
21st Century and Contemporary Brooches
Materials
White Diamond, Platinum
Tanzanite and White Diamond Omega Necklace in 14K White Gold
Located in Los Angeles, CA
Beautiful 2.55 ct. tanzanite rounds with 0.67 ct. white diamond rounds. Handmade in 14k white gold. Fun and classy design with 9 clusters. Will fit 14-15" neck.
Category
21st Century and Contemporary Chain Necklaces
Materials
White Diamond, Tanzanite, White Gold
White Diamond Stud Earrings in 14k White Gold
Located in Los Angeles, CA
Beautiful 1.25 ct. white diamond round earrings in handmade 14k white gold mountings. Diamonds are bright and good quality.
Category
21st Century and Contemporary Stud Earrings
Materials
White Diamond, White Gold
White Diamond Round and Blue Oval Pendant Necklace in 14k Yellow Gold
Located in Los Angeles, CA
Beautiful 0.12 ct. white diamond rounds with a nice big blue stone in this handmade pendant necklace. Carefully handcrafted in 14k yellow gold. Length of chain is 18".
Category
21st Century and Contemporary Pendant Necklaces
Materials
White Diamond, Yellow Gold
Emerald Pear Shape and Diamond Pendant Necklace in 18k White Gold
Located in Los Angeles, CA
Gorgeous 14.29 ct. emerald pear shape with 1.10 ct. good quality white diamond rounds. Handmade in 18k white gold. Length is 18".
Category
21st Century and Contemporary Pendant Necklaces
Materials
Diamond, Emerald, White Gold
White Diamond Cluster Ring in 14k Yellow Gold
Located in Los Angeles, CA
Beautiful 0.55 ct. white diamond rounds in a cluster design. Handmade in 14k yellow gold. Ring size 9.25.
Category
21st Century and Contemporary Cluster Rings
Materials
White Diamond, Yellow Gold
White Diamond Princess Cuts and Rounds Bypass Ring in 18k Rose Gold
Located in Los Angeles, CA
Beautiful 1.30 ct. white diamond princess cuts and rounds. Handmade in 18k rose gold. Ring size 5.25.
Category
21st Century and Contemporary Fashion Rings
Materials
White Diamond, Rose Gold
GIA Burma Red Ruby
Trillion Diamond Pendant Necklace in Platinum
Located in Los Angeles, CA
Gorgeous GIA 4.43 ct. purplish red ruby oval cabochon with 0.35 ct. good quality white diamond trillion. Handmade in platinum. Length is 18". GIA certificate included.
Category
21st Century and Contemporary Pendant Necklaces
Materials
Diamond, Ruby, Platinum
GIA Sri Lanka Blue Sapphire and White Diamond Cocktail Ring in Platinum
Located in Los Angeles, CA
Gorgeous 10.88 ct. GIA Sri Lanka blue sapphire oval with 0.80 ct. good quality, white, and bright diamond rounds. Handmade in platinum. Ring size 6.5. GIA certificate included.
Category
21st Century and Contemporary Cocktail Rings
Materials
White Diamond, Blue Sapphire, Platinum
White Diamond and Onyx Fluted Earrings in 18K Yellow Gold
Located in Los Angeles, CA
Gorgeous 4.00 ct. good quality, white, and bright diamond rounds with fluted onyx handmade in 18k yellow gold. These earrings are classy and fun!
Category
21st Century and Contemporary Lever-Back Earrings
Materials
White Diamond, Onyx, Yellow Gold
Vintage White Diamond Rose Cut French Bird Brooch
Located in Los Angeles, CA
Beautiful French bird with good quality white diamond rose cut rounds.
Category
20th Century French Brooches
Materials
White Diamond
Opal and White Diamond Cocktail Ring in Platinum
Located in Los Angeles, CA
Beautiful 3.95 ct. opal oval with 0.80 ct. good quality white diamond baguettes and rounds. Handmade in platinum. Ring size 6.
Category
21st Century and Contemporary Cocktail Rings
Materials
White Diamond, Opal, Platinum
Lightning Ridge Black Opal and White Diamond Dangle Earrings in Platinum
Located in Los Angeles, CA
Absolutely stunning 29.15 ct. lightning ridge black opal pear shapes with good quality, white, and bright diamond rounds and pear shapes. Handmade in platinum. These earrings are s...
Category
21st Century and Contemporary Dangle Earrings
Materials
White Diamond, Opal, Black Opal, Platinum
White Diamond Link Bracelet in 14K White Gold
Located in Los Angeles, CA
Beautiful 7.25 ct. good quality white diamond rounds. Handmade in 14k white gold. Length is 7.25".
Category
21st Century and Contemporary Modern Bracelets
Materials
White Diamond, White Gold
White Diamond Cluster Earrings in 18K Yellow Gold
Located in Los Angeles, CA
Beautiful 3.00 ct. white and bright diamond marquise shapes in a cluster design. Handmade in 18k yellow gold. Post and lever back.
Category
21st Century and Contemporary Lever-Back Earrings
Materials
White Diamond, Yellow Gold
African Ruby and White Diamond Pendant in Platinum
Located in Los Angeles, CA
Beautiful 10.57 ct. African ruby oval cabochon with 0.60 ct. good quality white diamond rounds. Handmade in platinum.
Category
21st Century and Contemporary Pendant Necklaces
Materials
White Diamond, Ruby, Platinum
Blue Sapphire Link Bracelet in 14K Yellow Gold
Located in Los Angeles, CA
Beautiful blue sapphire marquise embedded in handmade 14k yellow gold. Length is 7".
Category
21st Century and Contemporary Link Bracelets
Materials
Blue Sapphire, Yellow Gold
Tanzanite and White Diamond Dangle Earrings in 18K Rose Gold
Located in Los Angeles, CA
Beautiful dangle earrings featuring 24.94 ct. tanzanite octagons and 0.56 ct. good quality white diamond rounds. Handmade in 18k rose gold.
Category
21st Century and Contemporary Dangle Earrings
Materials
White Diamond, Tanzanite, Rose Gold
Green Jade Cabochon and White Diamond Three Stone Ring in Platinum
Located in Los Angeles, CA
Beautiful 7.90 ct. green jade oval cabochon with 0.50 ct. good quality white diamond trillions. Handmade in platinum. Ring size 6.
Category
21st Century and Contemporary Three-Stone Rings
Materials
White Diamond, Jade, Platinum
Horse Jockey Cufflinks in 14K Yellow Gold
Located in Los Angeles, CA
Very nice horse jockey cufflinks handmade in 14k yellow gold.
Category
21st Century and Contemporary Cufflinks
Materials
Yellow Gold
White Diamond Dangle Earrings in 14K 2 Tone Gold
Located in Los Angeles, CA
Beautiful 0.52 ct. white diamond rounds (total of 92 stones) in handmade 14k white and rose gold mountings.
Category
21st Century and Contemporary Dangle Earrings
Materials
White Diamond, Gold
GIA Greenish Blue Aquamarine and Diamond Pendant in 18k Yellow Gold
Located in Los Angeles, CA
Gorgeous 153.25 ct. greenish blue aquamarine round with 0.90 ct. good quality white diamond rounds. Handmade in 18k yellow gold. Comes with GIA certificate.
Category
21st Century and Contemporary Pendant Necklaces
Materials
Aquamarine, Diamond, Yellow Gold
Pink and White Diamond Round Brooch/Pendant in 18k Rose Gold
Located in Los Angeles, CA
Gorgeous 9.79 ct. pink and white diamond round brooch/pendant. Handmade in 18k yellow gold. All natural diamonds and well made with attention to detail.
Category
21st Century and Contemporary Brooches
Materials
White Diamond, Pink Diamond, Rose Gold
White Diamond Half Hoops in 18k White Gold
Located in Los Angeles, CA
Beautiful white diamond hoops with 5.75 ct. good quality white diamond rounds. Handmade in 18k white gold.
Category
21st Century and Contemporary Hoop Earrings
Materials
White Diamond, White Gold
GIA Sphalerite and White Diamond Pendant in 18k Yellow Gold
Located in Los Angeles, CA
Gorgeous GIA certified 89.38 ct. sphalerite pear shape with 1.50 ct. white diamond rounds. Handmade in 18k yellow gold. Unique and rare piece. GIA certificate included.
Category
21st Century and Contemporary Pendant Necklaces
Materials
White Diamond, Yellow Gold
Natural Pink and White Diamond Ring in 14K 2 Tone Gold
Located in Los Angeles, CA
Beautiful 0.72 ct. natural pink diamond marquise with 1.01 ct. natural pink and white diamond rounds. Handmade in 14k white and rose gold. Ring size 7.
Category
21st Century and Contemporary Fashion Rings
Materials
White Diamond, Gold
Champagne and White Diamond Oval Pendant Necklace in 14k Yellow Gold
Located in Los Angeles, CA
Gorgeous pendant necklace featuring 2.19 ct. champagne and white good quality diamond rounds in a handmade 14k yellow gold mounting. Length is 16".
Category
21st Century and Contemporary Pendant Necklaces
Materials
White Diamond, Yellow Gold
White and Yellow Diamond Flower Brooch in 18k Gold
Located in Los Angeles, CA
Gorgeous brooch with 2.25 ct. of good quality white and yellow diamond rounds. Handmade in 18k yellow and white gold. This brooch has a classy floral design and is very well made.
Category
21st Century and Contemporary Brooches
Materials
Yellow Diamond, 18k Gold
GIA Yellowish Orange Sapphire Oval and White Diamond Cocktail Ring in 18k
Located in Los Angeles, CA
Beautiful bright orange sapphire oval weighing 8.94 ct. with 0.50 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, Sapphire, 18k Gold
Guild Lab Star Ruby and White Diamond Cocktail Ring in 18k White Gold
Located in Los Angeles, CA
Gorgeous 3.94 ct. star ruby from Ceylon with 2.00 ct. good quality white diamond rounds and baguettes. Star has 6 distinct points. Handmade ring in 18k white gold. Ring size 7.25....
Category
21st Century and Contemporary Cocktail Rings
Materials
White Diamond, Ruby, Star Ruby, White Gold
Pink Diamond Pendant Necklace in 18K White Gold
Located in Los Angeles, CA
Beautiful 0.40 ct. pink diamond rounds. Handmade in 18k white gold. Length is 17".
Category
21st Century and Contemporary Pendant Necklaces
Materials
Pink Diamond, White Gold
White Pearl, Emerald, Opal and White Diamond Necklace in 14K and Platinum
Located in Los Angeles, CA
Beautiful opal beads with a handmade 14k white gold and platinum clasp that has emeralds, a big round white pearl, and good quality white diamond rounds. This necklace is unique and...
Category
21st Century and Contemporary Beaded Necklaces
Materials
White Diamond, Emerald, Opal, Pearl, 14k Gold, Platinum
Champagne and White Diamond Double Chain Pendant Necklace in 18K White Gold
Located in Los Angeles, CA
Beautiful champagne and white diamond rounds in a fun pattern. Handmade in 18k white gold. Double chains give the necklace an even more elevated look. Length is 20".
Category
21st Century and Contemporary Pendant Necklaces
Materials
White Diamond, Brown Diamond, White Gold
White Diamond Pendant Necklace in 14K White Gold
Located in Los Angeles, CA
Beautiful pendant necklace with 0.30 ct. good quality white diamond rounds. Length of chain is 18".
Category
21st Century and Contemporary Pendant Necklaces
Materials
White Diamond, White Gold
Blue Sapphire and White Diamond Bracelet in 18K Yellow Gold
Located in Los Angeles, CA
Beautiful 15.00 ct. blue sapphire emerald cuts and good quality white diamond rounds. Handmade in 18k yellow gold. Length 7.25".
Category
21st Century and Contemporary Tennis Bracelets
Materials
White Diamond, Blue Sapphire, Yellow Gold
Burma Ruby Cabochon and White Diamond Cluster Bracelet in 18 Karat Yellow Gold
Located in Los Angeles, CA
This breathtaking cluster bracelet showcases a hue of Burmese red ruby cabochons weighing 202.57 carats and 2.79 carats of white bright diamond rounds. Handcrafted in a dainty, flex...
Category
21st Century and Contemporary More Bracelets
Materials
Diamond, White Diamond, Ruby, 18k Gold, Yellow Gold
GIA Unheated Burma Blue Sapphire Beads with Diamond and Platinum Clasp
Located in Los Angeles, CA
Gorgeous 344.10 ct. unheated Burma blue sapphire beads with good quality, white, and bright diamond marquises, baguettes, and rounds. Handmade clasp in platinum. Four total strands...
Category
21st Century and Contemporary Beaded Necklaces
Materials
Diamond, Blue Sapphire, Platinum
Colombian Emerald, Ceylon Blue Sapphire, and Diamond Bead Necklace
Located in Los Angeles, CA
Absolutely gorgeous 825 ct. of Colombian emerald and Ceylon blue sapphire beads with an 18k white gold and diamond fish design clasp. This necklace is stunning and substantial. Tot...
Category
21st Century and Contemporary Multi-Strand Necklaces
Materials
Diamond, Emerald, Blue Sapphire, 18k Gold
Blue Sapphire Oval Cabochon and Diamond Necklace in 18 Karat White Gold
Located in Los Angeles, CA
Gorgeous 8.73 carat blue sapphire oval with 0.30 carats of white diamond rounds in 18k white gold. This 18" necklace has charm and character, perfect to wear for any occasion!
Category
Late 20th Century Pendant Necklaces
Materials
Diamond, White Diamond, Blue Sapphire, 18k Gold, White Gold
White and Multi-Color Fancy Diamond Pendant Necklace in 18K Gold
Located in Los Angeles, CA
Beautiful 1.00 ct. white and fancy multicolor diamond marquise, oval, and round pendant. Handmade in 18k white and rose gold.
Category
21st Century and Contemporary Pendant Necklaces
Materials
Diamond, 18k Gold
Emerald Pear and White Diamond Cocktail Ring in 18k Gold
Located in Los Angeles, CA
Beautiful 3.22 ct. emerald pear shape with 1.00 ct. good quality, white, and bright diamond baguettes. Handmade in 18k white gold. Ring size 8.
Category
21st Century and Contemporary Cocktail Rings
Materials
White Diamond, Emerald, 18k Gold
Aquamarine and White Diamond Cocktail Ring in Platinum
Located in Los Angeles, CA
Gorgeous 34.88 ct. aquamarine emerald cut with 1.02 ct. good quality white diamond rounds. Handmade in platinum. Ring size 6.5.
Category
21st Century and Contemporary Cocktail Rings
Materials
Aquamarine, White Diamond, Platinum
Estate Steuben Glass Strawberry Pendant Necklace in 14K Yellow Gold
By Steuben Glass
Located in Los Angeles, CA
Beautiful estate Steuben Glass strawberry pendant necklace handmade in 14k yellow gold. Length of chain is 22". Comes with original box.
Category
21st Century and Contemporary Pendant Necklaces
Materials
Crystal, Yellow Gold
Black Lightning Ridge Opal Round and White Diamond Cocktail Ring in 18K
Located in Los Angeles, CA
Gorgeous 21.75 ct. black lightning ridge opal round with 3.80 ct. of good quality white diamond rounds. Handmade in 18k white gold. Ring size 7.
Category
21st Century and Contemporary Cocktail Rings
Materials
White Diamond, Opal, 18k Gold
White Diamond Earrings in 14K 2 Tone Gold
Located in Los Angeles, CA
Beautiful earrings with 0.40 ct. white diamond rounds in handmade 14k white and yellow gold mountings. Push back with lever back setting.
Category
21st Century and Contemporary Lever-Back Earrings
Materials
White Diamond, Gold
Tanzanite and White Diamond Bangle in 18K Yellow Gold
Located in Los Angeles, CA
Beautiful 0.45 ct. tanzanite trillion with 0.10 ct. good quality white diamond rounds. Handmade in 18k yellow gold.
Category
21st Century and Contemporary Bangles
Materials
White Diamond, Tanzanite, Yellow Gold
GIA White Diamond Round Eternity Band in 18K White Gold
Located in Los Angeles, CA
Gorgeous GIA 7.00 ct. HI SI1-SI2 white diamond rounds (total of 14 stones). Handmade in 18k white gold. Ring size 6. GIA certificate included.
Category
21st Century and Contemporary Band Rings
Materials
White Diamond, White Gold
White Round Diamonds with Halo Earring Studs in 18K White Gold
Located in Los Angeles, CA
Beautifully crafted pair of white diamond earrings set in 18K white gold with halo. This pair of earrings weigh 5.80 grams.
Category
21st Century and Contemporary Lever-Back Earrings
Materials
Diamond, White Gold
White South Sea Pearl and White Diamond Cocktail Ring in Platinum
Located in Los Angeles, CA
Large 15.4 mm white South Sea white pearl with 1.22 ct. good quality white diamond rounds and baguettes. Handmade in platinum. Ring size 6.
Category
21st Century and Contemporary Cocktail Rings
Materials
White Diamond, South Sea Pearl, Platinum
Opal and White Diamond Three Stone Ring in Platinum
Located in Los Angeles, CA
Beautiful 3.18 ct. opal oval cabochon with 0.51 ct. white diamond emerald cuts on either side. Handmade in platinum. Ring size 6.25.
Category
21st Century and Contemporary Three-Stone Rings
Materials
White Diamond, Opal, Platinum
Blue Sapphire Oval Cabochon and White Diamond Ring in Platinum
Located in Los Angeles, CA
Beautiful 3.26 ct. blue sapphire oval cabochon with 0.60 ct. good quality white diamond baguettes. Handmade in platinum. Ring size 7.25.
Category
21st Century and Contemporary Fashion Rings
Materials
White Diamond, Blue Sapphire, Platinum
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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 rings, vintage engagement rings or Art Deco engagement rings.
Shop antique and vintage diamond rings, diamond necklaces and other extraordinary diamond jewelry on 1stDibs.
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