Skip to main content

30 Carat Fancy Yellow Diamonds

1
to
21
166
8
137
66
57
28
12
11
9
7
6
6
5
4
3
3
2
2
2
2
1
1
1
1
15
6
5
5
3
Sort By
30 Carat Fancy Yellow White Diamond Necklace
By Antinori Fine Jewels
Located in Rome, IT
30 Carat Fancy Yellow White Diamond Necklace
Category

2010s Italian Modern Chain Necklaces

Materials

Diamond, White Diamond, Emerald, 18k Gold

30 Carat Fancy Intense Yellow Diamond Engagement Ring, In Platinum GIA Certified
Located in New York, NY
Exquisite 30-carat Fancy Intense Yellow Radiant-cut diamond engagement ring, GIA-certified as VVS2
Category

21st Century and Contemporary American Contemporary Engagement Rings

Materials

Diamond, Yellow Diamond, 18k Gold, Platinum

GIA 1.51 Carat Fancy Light Yellow Princess Cut Diamond Platinum 18k Yellow Gold
Located in Beverly Hills, CA
One GIA 1.51 Carat Fancy Light Yellow Princess Cut Diamond Platinum 18k Yellow Gold Ring. Featuring
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, White Diamond, Yellow Diamond, Gold, 18k Gold, Yellow Gold, Pla...

Michael Beaudry 3.95 Carat Natural Fancy Yellow Diamond Platinum Gold Bracelet
By Michael Beaudry
Located in Stamford, CT
Platinum tubes accented with 6 radiant cut natural fancy yellow diamonds set in 18k yellow gold frames. 30
Category

21st Century and Contemporary Modern Bracelets

Materials

Diamond, Yellow Diamond, Platinum, Gold, 18k Gold, Yellow Gold

GIA Certified 1.07 Carat Oval Fancy Yellow Diamond Platinum Engagement Ring
Located in Stamford, CT
1960's Fancy oval yellow diamond engagement ring. 1.07ct GIA certified fancy yellow oval diamond in
Category

Mid-20th Century Engagement Rings

Materials

Diamond, Yellow Diamond, Platinum

GIA 1.10 Carat Fancy Vivid Yellow Radiant Cut Diamond Platinum 20k Yellow Gold R
Located in Beverly Hills, CA
One GIA 1.10 Carat Fancy Vivid Yellow Radiant Cut Diamond Platinum 20k Yellow Gold Ring. Featuring
Category

21st Century and Contemporary Engagement Rings

Materials

Yellow Diamond, White Diamond, Diamond, Platinum, Yellow Gold, Gold

1.50 Carat Fancy Light Brownish Yellow Old Mine Cut Diamond 22k Yellow Gold Ring
Located in Beverly Hills, CA
One 1.50 Carat Fancy Light Brownish Yellow Old Mine Cut Diamond 22k Yellow Gold Ring. Featuring one
Category

21st Century and Contemporary Engagement Rings

Materials

Brown Diamond, Yellow Diamond, White Diamond, Diamond, Yellow Gold, 22k ...

Vintage French GIA 1.21 Carat Fancy Color Diamond 18k Yellow Gold Ring
Located in Beverly Hills, CA
One Vintage French GIA 1.21 Carat Fancy Color Diamond 18k Yellow Gold Ring. Featuring one GIA old
Category

Vintage 1970s Engagement Rings

Materials

Brown Diamond, Yellow Diamond, White Diamond, Diamond, Yellow Gold, 18k ...

GIA 2.21 Carat Fancy Yellow Radiant Cut Diamond Platinum 18k Gold Ring
Located in Beverly Hills, CA
One GIA 2.21 Carat Fancy Yellow Radiant Cut Diamond Platinum 18k Gold Ring. Featuring one GIA cut
Category

21st Century and Contemporary Engagement Rings

Materials

Brown Diamond, Yellow Diamond, White Diamond, Diamond, Platinum, Yellow ...

Fancy Yellow Diamond Pendant Chain
Located in New York, NY
0.44 carats. Nestled between the fancy yellow diamonds is a single, elegant fancy white diamond
Category

2010s Indian Modern Pendant Necklaces

Materials

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

Fancy Yellow Diamond Pendant Chain
Fancy Yellow Diamond Pendant Chain
Free Shipping
H 0.16 in W 0.32 in L 1.03 in
AGL Certified 0.17 Carat Fancy Yellow Diamond Ring SI Clarity
Located in Kowloon, HK
➛ Stone Shape: Pear ➛ Stone Color: Fancy Yellow ➛ Stone Weight: 0.17 carat ➛ Clarity: SI ➛ AGL certified
Category

2010s Asian Bridal Rings

Materials

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

0.27 Carat Fancy Yellow Diamond Ring SI Clarity AGL Certified
Located in Kowloon, HK
➛ Stone Shape: Cushion ➛ Stone Color: Fancy Yellow ➛ Stone Weight: 0.27 carat ➛ Clarity: SI ➛ AGL
Category

2010s Asian Wedding Rings

Materials

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

EGL Certified 1.05 Carat Fancy Vivid Yellow Diamond Pear Shape Ring
By Gad & Co.
Located in Miami, FL
fancy yellow colored diamond center stone. The diamond is pear-shaped and weighs 0.38 carats. It is non
Category

21st Century and Contemporary North American Modern Engagement Rings

Materials

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

0.44 Carat Fancy Vivid Yellow Diamond Engagement Cocktail Ring, GIA Certificate
Located in New York, NY
A gorgeous Engagement Cocktail ring Showcasing 0.44 Carat round brilliant cut Fancy Vivid Yellow
Category

21st Century and Contemporary American Victorian Cocktail Rings

Materials

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

Important GIA Certified Natural Fancy Yellow Diamond Ring 5.23 Carats 18K Gold
Located in Laguna Niguel, CA
= 3.52 Carat Cut: Radiant, Clarity: VS1 30 Fancy Yellow Diamonds = 0.17 Carats 2 Trapezoid Diamonds
Category

21st Century and Contemporary Contemporary Engagement Rings

Materials

Yellow Diamond, White Diamond, Diamond, Yellow Gold, White Gold, 18k Gol...

Vintage GIA 2.72 Carat Fancy Brown-Yellow Pear Cut Diamond Platinum Ring
Located in Beverly Hills, CA
One Vintage GIA 2.72 Carat Fancy Brown-Yellow Pear Cut Diamond Platinum Ring. Featuring one GIA
Category

1990s Engagement Rings

Materials

Diamond, White Diamond, Brown Diamond, Platinum

Important GIA Certified Natural Fancy Yellow Diamond Ring 5.23 Carats 18K Gold
Located in Laguna Niguel, CA
= 3.52 Carat Cut: Radiant, Clarity: VS1 30 Fancy Yellow Diamonds = 0.17 Carats 2 Trapezoid Diamonds
Category

21st Century and Contemporary Contemporary Engagement Rings

Materials

Diamond, White Diamond, Yellow Diamond, Gold, 18k Gold, White Gold, Yell...

Important GIA Certified Natural Fancy Yellow Diamond Ring 5.23 Carats 18K Gold
Located in Laguna Niguel, CA
= 3.52 Carat Cut: Radiant, Clarity: VS1 30 Fancy Yellow Diamonds = 0.17 Carats 2 Trapezoid Diamonds
Category

21st Century and Contemporary Contemporary Engagement Rings

Materials

Diamond, White Diamond, Yellow Diamond, Gold, 18k Gold, White Gold, Yell...

1.26 Carat Fancy Intense Yellow Diamond Ring & Pendant Convertible GIA Certified
Located in Kowloon, HK
Shape: Cushion ➛ Stone Color: Fancy Intense Yellow ➛ Stone Clarity: SI1 ➛ Stone Weight: 1.26 carats
Category

2010s Asian Bridal Rings

Materials

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

Important GIA Certified Natural Fancy Yellow Diamond Ring 5.23 Carats 18K Gold
Located in Laguna Niguel, CA
= 3.52 Carat Cut: Radiant, Clarity: VS1 30 Fancy Yellow Diamonds = 0.17 Carats 2 Trapezoid Diamonds
Category

21st Century and Contemporary Contemporary Engagement Rings

Materials

Diamond, White Diamond, Yellow Diamond, Gold, 18k Gold, White Gold, Yell...

GIA Fancy Intense Yellow Diamond 2.01 carat Three-stone ring in Platinum and 18k
Located in La Jolla, CA
grade of Fancy Intense Yellow. The accent white diamonds weigh approximately .30 carats. Total diamond
Category

21st Century and Contemporary North American Three-Stone Rings

Materials

Diamond, Yellow Diamond, Platinum

GIA Certified Fancy Intense Yellow 7 Carat Radiant Cut Diamond Ring in 18k Gold
By Gad & Co.
Located in Miami, FL
7 carat fancy intense yellow radiant cut diamond set with over 2 carats in white and yellow
Category

2010s Art Nouveau Engagement Rings

Materials

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

Fancy Greenish Yellow Diamond Engagement Ring
Located in Hong Kong, HK
unparalleled charm of six greenish-yellow diamonds totaling 0.56 carats, complemented by 99 additional diamonds
Category

2010s Hong Kong Contemporary Engagement Rings

Materials

Yellow Diamond, 18k Gold

30 Carat Natural Mix Shaped Yellow Diamond Necklace, In 18 Karat Yellow Gold.
Located in New York, NY
Introducing our extraordinary Mix-Shaped Cut Yellow Diamond tennis necklace, showcasing a stunning
Category

2010s American Modern Choker Necklaces

Materials

Yellow Diamond, 18k Gold, Yellow Gold

1.50 Carat Fancy Grayish Greenish Yellow Diamond Ring SI1 Clarity GIA Certified
Located in Kowloon, HK
carats ➛ GIA certified ♦ SIDE STONE DETAILS ➛ Side white diamonds - 30 pcs – 0.302 cts ➛ Side pink
Category

2010s Asian Wedding Rings

Materials

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

1.15 Carat Fancy Light Green Yellow Diamond Ring VS1 Clarity GIA Certified
Located in Kowloon, HK
Shape: Oval ➛ Stone Color: Fancy Light Green Yellow ➛ Stone Clarity: VS1 ➛ Stone Weight: 1.15 carats
Category

2010s Asian Bridal Rings

Materials

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

TJD 1.00 Carat 14 Karat Yellow Gold Baguette & Round Diamond Fancy Earrings
By TJD
Located in New York, NY
Embedded with 30 round and 22 baguette cut diamonds set in prong and Bezel setting and dazzles in H-I color
Category

21st Century and Contemporary Stud Earrings

Materials

Diamond, Yellow Gold

Fancy 18 Karat Yellow Gold 3.79 Carat Diamond Wrap Ring
Located in Los Angeles, CA
100% Authentic, 100% Customer Satisfaction Top: 30 mm Band Width: 5.5 mm Ring Height: 6 mm
Category

2010s American More Rings

Materials

Diamond, 18k Gold

1.00 Carat Natural Diamond Fancy Bangle Bracelet G-H SI 14 Karat Yellow Gold
Located in New York, NY
1.00 Carat Natural Diamond Fancy Bangle Bracelet G SI 14K Yellow Gold 7'' 100% Natural Diamonds
Category

21st Century and Contemporary American Contemporary Bangles

Materials

Diamond, 14k Gold, Yellow Gold

GIA 2.00 Carat Fancy Color Diamond Platinum Three Stone Ring
Located in Beverly Hills, CA
One GIA 2.00 Carat Fancy Color Diamond Platinum Three Stone Ring. Featuring one GIA regular step
Category

21st Century and Contemporary Three-Stone Rings

Materials

Diamond, White Diamond, Yellow Diamond, Brown Diamond, Platinum

Fancy Color Diamond 14k Yellow Gold Diamonds by the Yard Chain Necklace
Located in Beverly Hills, CA
One Fancy Color Diamond 14k Yellow Gold Diamonds By the Yard Chain Necklace. Featuring one GIA kite
Category

21st Century and Contemporary Chain Necklaces

Materials

Diamond, White Diamond, Yellow Diamond, Brown Diamond, Gold, 14k Gold, Y...

Estate GIA Certified Fancy Yellow Pear Shaped Diamond Necklace
Located in Scottsdale, AZ
Estate GIA certified fancy yellow pear shaped diamond necklace. Centering one fancy yellow pear
Category

21st Century and Contemporary Pendant Necklaces

Materials

Diamond, Yellow Diamond

Jay Feder 18k Two Tone Gold Fancy Yellow Diamond White Diamond Bracelet
Located in Boca Raton, FL
Jay Feder 18k Two Tone Gold Fancy Yellow Diamond and White Diamond Bracelet Set with White and
Category

Early 2000s Link Bracelets

Materials

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

Alexander 1.02ct Fancy Intense Yellow Cushion Diamond with Halo Ring 18k
By Alexander Beverly Hills
Located in BEVERLY HILLS, CA
Alexander Beverly Hills 1.63 carats total diamond weight. 1.02 carat cushion cut Fancy Intense Yellow color
Category

21st Century and Contemporary American Contemporary Engagement Rings

Materials

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

Alexander 1.01ct Fancy Intense Yellow Cushion Diamond with Halo Ring 18k
By Alexander Beverly Hills
Located in BEVERLY HILLS, CA
Alexander Beverly Hills 1.49 carats total diamond weight. 1.01 carat cushion cut Fancy Intense Yellow color
Category

21st Century and Contemporary American Contemporary Engagement Rings

Materials

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

Alexander 2.66ctt Fancy Yellow Oval Diamond with Halo Ring 18k Two Tone
By Alexander Beverly Hills
Located in BEVERLY HILLS, CA
Fancy Yellow color and SI1 clarity diamond, EGL graded. Complimented by 30 round brilliant diamonds
Category

21st Century and Contemporary American Contemporary Engagement Rings

Materials

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

Alexander 2.13ctt Fancy Yellow Cushion Diamond with Halo Ring 18k Two Tone
By Alexander Beverly Hills
Located in BEVERLY HILLS, CA
, split shank. By Alexander Beverly Hills 2.13 carats total diamond weight. 1.53 carat cushion cut Fancy
Category

21st Century and Contemporary American Contemporary Engagement Rings

Materials

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

Alexander 1.51ctt Fancy Light Yellow VS1 Cushion Diamond with Halo Ring 18k
By Alexander Beverly Hills
Located in BEVERLY HILLS, CA
Alexander Beverly Hills 1.51 carats total diamond weight. 1.02 carat cushion cut Fancy Yellow color and VS1
Category

21st Century and Contemporary American Contemporary Engagement Rings

Materials

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

Alexander 2.21ctt Fancy Yellow VS1 Cushion Diamond with Halo Ring 18k Two Tone
By Alexander Beverly Hills
Located in BEVERLY HILLS, CA
, split shank. By Alexander Beverly Hills 2.21 carats total diamond weight. 1.55 carat cushion cut Fancy
Category

21st Century and Contemporary American Contemporary Engagement Rings

Materials

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

0.30ctw Diamond Line Bracelet, 18k Yellow Gold, Length 6.75 In., Fancy Diamond
Located in McLeansville, NC
This 0.30ctw Diamond Line Bracelet in 18k Yellow Gold is a stunning piece of jewelry that exudes
Category

Early 2000s Tennis Bracelets

Materials

Diamond, 18k Gold, Yellow Gold

Cellini Plat Fancy Colored 1.43Ct Pink 1.34Ct Yellow 1.53Ct Grey Diamond Ring
By Cellini
Located in New York, NY
touch. Grey diamond = 1.53 carats Pink diamond = 1.43 carats Yellow diamond = 1.34 carats White diamonds
Category

1990s Contemporary Three-Stone Rings

Materials

Diamond, Yellow Diamond, Pink Diamond, Platinum

Cellini Jewelers Platinum Fancy Cut Radiant Yellow, Pink, Grey Blue Diamond Ring
By Cellini
Located in New York, NY
cut diamonds. The setting forms a scallop giving this magnificent ring a feminine touch. Fancy yellow
Category

2010s Contemporary Three-Stone Rings

Materials

Amber, White Diamond, Blue Diamond, Yellow Diamond, Pink Diamond, Platinum

Lugano Fancy Color Diamond Briolette Earrings
By Lugano
Located in Beverly Hills, CA
Lugano, 18 karat yellow gold with over 30 carats of fancy color briolette diamonds. The earrings
Category

21st Century and Contemporary French Contemporary Stud Earrings

Materials

Diamond, Yellow Diamond, Brown Diamond, 18k Gold, Yellow Gold

Emilio Jewelry GIA Certified 5.00 Carat Fancy Yellowish Green Diamond
By Emilio!
Located in New York, NY
certified natural fancy yellowish green diamond. Yellowish Green is rarer than yellow green being that the
Category

21st Century and Contemporary Three-Stone Rings

Materials

Diamond, Blue Diamond, Pink Diamond

Yellow Gold Diamond Art Deco Engagement Ring 14k Euro .42ctw Fancy Brown Vintage
Located in Greensboro, NC
Metal Content: 14k Yellow Gold & 14k White Gold Stone Information Natural Diamond Carat(s): .33ct Cut
Category

Vintage 1920s Art Deco Engagement Rings

Materials

Diamond, 14k Gold, Yellow Gold

GIA Certified 0.51 Cts Fancy Vivid Yellow Orange Diamond Ring
Located in New York, US
Centering a 0.51 carat Fancy Yellowish-Orange diamond, accented by 30 round brilliant cut diamonds
Category

2010s Engagement Rings

Materials

Diamond

White and Fancy Yellow Dangly Diamond Heart Earrings in 18K White Gold
Located in Honolulu, HI
approximately 1.10 carats. The fancy intense yellow pear cut diamonds total an additional 0.40 carats for a
Category

21st Century and Contemporary American Modern Dangle Earrings

Materials

Yellow Diamond, Diamond, 18k Gold, White Gold

Estate 18k Two-Tone Fancy Yellow Cushion Diamond and Round Hoop Dangle Earrings
Located in Scottsdale, AZ
Estate 18K two-tone fancy yellow cushion diamond and round diamond hoop dangle earrings. Showcasing
Category

21st Century and Contemporary Dangle Earrings

Materials

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

Emilio Jewelry GIA Certified 1.00 Carat Fancy Vivid Orange Diamond Ring
By Emilio!
Located in New York, NY
diamonds totaling about 0.14 carats, about 16 yellow diamonds totaling about 0.12 carats, about 30 colored
Category

21st Century and Contemporary Three-Stone Rings

Materials

Blue Diamond, Pink Diamond

GIA Certified 1.94 Carat Diamond Yellow Gold Three-Stone Engagement Ring
Located in Stamford, CT
out of 18k yellow gold. The GIA has certified the center diamond as Fancy light yellow with a hint of
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Yellow Diamond, Gold, 18k Gold, Yellow Gold

Gelin Abaci Natural Fancy Yellow and White Diamond Bypass Band Ring 14 Karat
By Gelin Abaci
Located in Scottsdale, AZ
: .58 carats Yellow Diamond cut: Round Brilliant Yellow Diamond Color: Fancy Brownish-Yellow Natural
Category

21st Century and Contemporary American Contemporary Band Rings

Materials

Yellow Diamond, White Diamond, Diamond, White Gold, 14k Gold, Gold

Late Art Deco French Certified 1.91 Ct Fancy Yellow Diamond Plus Platinum ring
Located in Napoli, IT
been HRD examined and certified as Natural Fancy Yellow, VS1 clarity -Centre Diamond is big 2.0 Carat
Category

Vintage 1930s French Art Deco Engagement Rings

Materials

Yellow Diamond, Platinum

GIA Certified 1.18 Carat Vivid Yellow Radiant Cut Diamond Engagement Ring
By SCARSELLI
Located in New York, NY
diamond sizes in Fancy Yellow Cushion and Radiant cuts up to 30+ carats from Scarselli though your
Category

2010s American Contemporary Engagement Rings

Materials

Diamond, White Diamond, Yellow Diamond, Platinum, 18k Gold

Scarselli 3 carat VIVID Yellow Radiant Cut Diamond Platinum Engagement Ring
By SCARSELLI
Located in New York, NY
diamond sizes in Fancy Yellow Cushion and Radiant cuts up to 30+ carats from Scarselli and you are welcome
Category

2010s American Contemporary Engagement Rings

Materials

White Diamond, Yellow Diamond, Diamond, 18k Gold, Platinum

Peter Suchy 3.03 Carat Natural Yellow Diamond Halo Platinum Engagement Ring
By Peter Suchy
Located in Stamford, CT
Spectacular natural fancy golden yellow diamond engagement ring. Beautiful GIA certified 3.03ct
Category

21st Century and Contemporary American Engagement Rings

Materials

Diamond, Yellow Diamond, 18k Gold, Yellow Gold, Platinum, Gold

Peter Suchy GIA Certified .37 Carat Diamond Yellow Gold Engagement Ring
By Peter Suchy
Located in Stamford, CT
Emerald cut diamond solitaire engagement ring. GIA and EGL certified .37ct fancy yellow bezel set
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Gold, 18k Gold, Yellow Gold

1.00 Carat Natural Diamond Fancy Bangle Bracelet G-H SI 14 Karat Rose Gold
Located in New York, NY
1.00 Carat Natural Diamond Fancy Bangle Bracelet G SI 14K Rose Gold 7'' 100% Natural Diamonds, Not
Category

21st Century and Contemporary American Contemporary Bangles

Materials

Diamond, 14k Gold, Rose Gold

1.00 Carat Natural Diamond Fancy Bangle Bracelet G-H SI 14 Karat White Gold
By David Morris
Located in New York, NY
1.00 Carat Natural Diamond Fancy Bangle Bracelet G SI 14K White Gold 7'' 100% Natural
Category

21st Century and Contemporary American Contemporary Charm Bracelets

Materials

Diamond, 14k Gold, White Gold

.30 Carat Islam Crescent Star Necklace 18 Karat
Located in New York, NY
Islam Crescent Star .30ct. Natural diamonds necklace. Rounds Full cut and Brilliant Center: Fancy
Category

2010s American Pendant Necklaces

Materials

Diamond, Brown Diamond, 18k Gold, Yellow Gold

Gold, Fancy Yellowish-Orange Diamond and Diamond Ring
Located in New York, US
Centering a 0.51 carat Fancy Yellowish-Orange diamond, accented by 30 round brilliant cut diamonds
Category

2010s Cocktail Rings

Materials

Diamond, Gold

  • 1
Get Updated with New Arrivals
Save "30 Carat Fancy Yellow Diamonds", and we’ll notify you when there are new listings in this category.

30 Carat Fancy Yellow Diamonds For Sale on 1stDibs

On 1stDibs, there are many options to choose from in our inventory of 30 carat fancy yellow diamonds. These distinct designs — crafted with great care and often made from Gold, 18k Gold and White Gold — can elevate any look. There are many different pieces in our collection of 30 carat fancy yellow diamonds to choose from, but Contemporary and Modern 30 carat fancy yellow diamonds are of considerable interest. There have been many well-made iterations of these items over the years, but those made by Antinori Fine Jewels, Emilio! and Mark Broumand are often thought to be among the most beautiful. There are many cushion cut, radiant cut and round cut 30 carat fancy yellow diamonds for sale. Most of our 30 carat fancy yellow diamonds for sale are for women, but there are 13 pieces available to browse for men.

How Much are 30 Carat Fancy Yellow Diamonds?

Prices for 30 carat fancy yellow diamonds can differ depending upon size, time period and other attributes — at 1stDibs, these accessories begin at $1,760 and can go as high as $600,000, while 30 carat fancy yellow diamonds, on average, fetch $13,475.