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GLEAMIRE 18K Gold 1.4ct Lab Created Diamond D-VVS Rose-Cut Pear Twist Ring
By GLEAMIRE
Located in Los Angeles, CA
Crafted in 2.52 grams of 18K White Gold, the ring contains 25 stone of Round Lab Created Diamond
Category

2010s Indian Contemporary Cocktail Rings

Materials

Diamond, 18k Gold, White Gold

Emilio Jewelry 5.39 Carat Pear Shape Diamond Drops
By Emilio!
Located in New York, NY
Approx total weight: 5.39cts Diamond Color: E-F Diamond Clarity: Vvs Cut: Excellent As noted we
Category

21st Century and Contemporary Drop Earrings

Materials

Diamond, White Diamond, 18k Gold

Emilio Jewelry 8.06 Carat Fancy Clustered Diamond Earring
By Emilio!
Located in New York, NY
Approx total weight: 8.06 cts Diamond Color: E-F Diamond Clarity: Vvs Cut: Excellent As noted we
Category

21st Century and Contemporary Drop Earrings

Materials

Diamond, White Diamond, 18k Gold

Emilio Jewelry 3.02 Carat Gorgeous Fancy Diamond Earrings
By Emilio!
Located in New York, NY
Approx total weight: 3.02ct Diamond Color: E-F Diamond Clarity: Vs Cut: Excellent Gold: 18K
Category

21st Century and Contemporary American Hoop Earrings

Materials

Diamond, White Diamond, 18k Gold

Emilio Jewelry 3.30 Carat Sapphire Diamond Stud Earrings
By Emilio!
Located in New York, NY
1stdibs falling into the top 25% of dealers listed here. Appraisal from AGI an outside reputable lab will
Category

21st Century and Contemporary Stud Earrings

Materials

Sapphire, Diamond, White Diamond, Blue Sapphire, 18k Gold

Emilio Jewelry 3.45 Carat Unique Ruby Diamond Stud Earrings
By Emilio!
Located in New York, NY
1stdibs falling into the top 25% of dealers listed here. Appraisal from AGI an outside reputable lab will
Category

21st Century and Contemporary Stud Earrings

Materials

Diamond, White Diamond, Ruby, 18k Gold

Emilio Jewelry Special 3.21 Carat Fancy Cut Diamond Huggie Earrings
By Emilio!
Located in New York, NY
Approx. 3.21 carats total weight diamonds.The finest conflict free diamonds set in our unique
Category

21st Century and Contemporary American Stud Earrings

Materials

Diamond, White Diamond, 18k Gold

14k Gold Long Diamond Cross Pendant Necklace Long Pave Diamond 0.49 Carats
By Oshi Jewels
Located in Bangkok, TH
Type :- Pave Diamonds :- All Diamonds are genuine, natural, conflict free diamonds. Well tested in lab
Category

21st Century and Contemporary Thai Modern Pendant Necklaces

Materials

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

18k Gold Long Diamond Cross Pendant Necklace Long Pave Diamond 0.49 Carats
By Oshi Jewels
Located in Bangkok, TH
, conflict free diamonds. Well tested in lab before use in jewelry. SKU:- OJDP510 Should you need any more
Category

21st Century and Contemporary Thai Modern Pendant Necklaces

Materials

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

Emilio Jewelry 110.00 Carat Diamond Red Carpet Earrings
By Emilio!
Located in New York, NY
1stdibs falling into the top 25% of dealers listed here. Appraisal from AGI an outside reputable lab will
Category

21st Century and Contemporary Modern Chandelier Earrings

Materials

Diamond, White Diamond, 18k Gold, Platinum

14K White Gold 1/2 Carat Diamond and Pink Sapphire Gemstone Pendant Necklace
Located in New York, NY
diamonds, and the ribbon design is decorated with beautiful, lab created pink sapphire gemstones, which
Category

21st Century and Contemporary Indian Modern Pendant Necklaces

Materials

Diamond, White Diamond, Pink Sapphire, 14k Gold, White Gold

Emilio Jewelry Geometric Unique 4.44 Carat Earring
By Emilio!
Located in New York, NY
Approx. 4.44 carats total weight diamonds.The finest conflict free diamonds set in our unique
Category

21st Century and Contemporary American Stud Earrings

Materials

Diamond, White Diamond, 18k Gold

Emilio Jewelry 4.70 Carat Handmade Brooch or Pendant
Located in New York, NY
Approx total weight: 4.70cts Diamond Color: E-F Diamond Clarity: Vs Cut: Excellent As noted we
Category

21st Century and Contemporary American Modern Brooches

Materials

White Diamond, Diamond, Platinum

EVA certified Maria 0.25 carat round brillant synthetic diamond yellow gold ring
Located in Monte-Carlo, MC
MARIA model, 18K solid yellow gold ring adorned with 25 round brilliant synthetic diamonds of 0.25
Category

2010s Fashion Rings

Emilio Jewelry Art Deco Style Diamond Brooch
By Emilio!
Located in New York, NY
Approx total weight: 1.32cts Diamond Color: E-F Diamond Clarity: Vs Cut: Excellent As noted we
Category

21st Century and Contemporary American Modern Brooches

Materials

Diamond, White Diamond

Emilio Jewelry Ruby Diamond Hoop Earrings
By Emilio!
Located in New York, NY
: 2.20cts Gorgeous deep red Rubies set with white diamonds. The width of the hoop measures about 3.10mm
Category

21st Century and Contemporary Hoop Earrings

Materials

Diamond, White Diamond, Ruby, 18k Gold

18K Gold Blue Sapphire Diamond Necklace Diamond Marquise Blue Sapphire
By Oshi Jewels
Located in Bangkok, TH
:- All Diamonds are genuine, natural, conflict free diamonds. Well tested in lab before use in jewelry
Category

21st Century and Contemporary Thai Modern Pendant Necklaces

Materials

Diamond, Blue Sapphire, 18k Gold, Rose Gold, White Gold, Yellow Gold

18k Gold Diamond Bar Necklace Micro Pave Diamond Bar Necklace Pendant
By Oshi Jewels
Located in Bangkok, TH
:- All Diamonds are genuine, natural, conflict free diamonds. Well tested in lab before use in jewelry
Category

21st Century and Contemporary Thai Modern Pendant Necklaces

Materials

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

14k Gold Diamond Bar Necklace Micro Pave Diamond Bar Necklace Pendant
By Oshi Jewels
Located in Bangkok, TH
:- All Diamonds are genuine, natural, conflict free diamonds. Well tested in lab before use in jewelry
Category

21st Century and Contemporary Thai Modern Pendant Necklaces

Materials

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

1960s Riviera Diamond GIA Heart Emerald Gold Necklace
Located in Miami, FL
gold. Incorporates 84 round-cut and 25 marquise shaped diamonds, prong-set in pairs, collectively
Category

Vintage 1960s Art Deco Pendant Necklaces

Materials

Diamond, Emerald, 18k Gold, Platinum

18K Gold Diamond Religious Ring Allah Diamond Ring Islam Allah Ring Ring for Her
By Oshi Jewels
Located in Bangkok, TH
:- 0.28 ctw. - Number of Diamonds :- 39 Pcs. - Diamond Size :- 0.9 mm x 14 Pcs , 1.1 mm 25 Pcs. - Setting
Category

21st Century and Contemporary Thai Modern Signet Rings

Materials

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

14K Gold Diamond Religious Ring Allah Diamond Ring Islam Allah Ring Ring for Her
By Oshi Jewels
Located in Bangkok, TH
:- 0.28 ctw. - Number of Diamonds :- 39 Pcs. - Diamond Size :- 0.9 mm x 14 Pcs , 1.1 mm 25 Pcs. - Setting
Category

21st Century and Contemporary Thai Modern Signet Rings

Materials

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

18k Gold Diamond Clover Necklace Simple Minimal Necklace
By Oshi Jewels
Located in Bangkok, TH
/ Yellow Gold. Tiny Clover Necklace showcasing 25 Brilliant round diamond pave set by master setter at
Category

21st Century and Contemporary Thai Modern Pendant Necklaces

Materials

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

14k Gold Diamond Clover Necklace Simple Minimal Necklace
By Oshi Jewels
Located in Bangkok, TH
/ Rose Gold / Yellow Gold. Tiny Clover Necklace showcasing 25 Brilliant round diamond pave set by master
Category

21st Century and Contemporary Thai Modern Pendant Necklaces

Materials

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

18k Diamond Angel Wing Necklace Guardian Angel Necklace
By Oshi Jewels
Located in Bangkok, TH
Diamonds:- 25 Diamond Size:- 1 mm x 25 Pcs. Diamonds :- All Diamonds are genuine, natural, conflict free
Category

21st Century and Contemporary Thai Modern Pendant Necklaces

Materials

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

14k Diamond Angel Wing Necklace Guardian Angel Necklace
By Oshi Jewels
Located in Bangkok, TH
sent me a message) Diamond Cut :- Round. Total CTW :- 0.14 Ct. Number of Diamonds:- 25 Diamond Size
Category

21st Century and Contemporary Thai Modern Pendant Necklaces

Materials

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

Sapphire & Diamond Wave Band 14K Yellow Gold Milgrain Stackable Ring
By Five Star Jewelry
Located in Austin, TX
Gold Sapphire Count: 5 Sapphire Weight: .25 carats total weight Diamond Count: 6 Diamond Weight: .25
Category

21st Century and Contemporary American Contemporary Band Rings

Materials

Diamond, Sapphire, 14k Gold, Yellow Gold

18k Gold Diamond Guitar Charm Necklace Guitarist Jewelry Music Lover Gift
By Oshi Jewels
Located in Bangkok, TH
- Total CTW :- 0.21 ct. - Number of Diamonds :- 30. - Diamond Size :- 1.1 mm. x 25 Pcs, 2.1 mm. x 1 Pc
Category

21st Century and Contemporary Thai Modern Pendant Necklaces

Materials

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

14k Gold Diamond Guitar Charm Necklace Guitarist Jewelry Music Lover Gift
By Oshi Jewels
Located in Bangkok, TH
- Total CTW :- 0.21 ct. - Number of Diamonds :- 30. - Diamond Size :- 1.1 mm. x 25 Pcs, 2.1 mm. x 1 Pc
Category

21st Century and Contemporary Thai Modern Pendant Necklaces

Materials

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

Burma Ruby No-Heat 4.75 Carats Set in Vintage Platinum Mounting, Certified
Located in Southbury, CT
brilliants compliment the ruby on either side. Together the diamonds weigh approximately .25 carats. The
Category

Mid-20th Century American Contemporary Engagement Rings

Materials

Diamond, Ruby, Platinum

18K Gold Round Cut Diamond Trio Tiny Stud Earrings Tiny Cluster Stud Earrings
By Oshi Jewels
Located in Bangkok, TH
are genuine, natural, conflict free diamonds. Well tested in lab before use in jewelry. SKU
Category

21st Century and Contemporary Thai Modern Stud Earrings

Materials

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

14k Gold Round Cut Diamond Trio Tiny Stud Earrings Tiny Cluster Stud Earrings
By Oshi Jewels
Located in Bangkok, TH
are genuine, natural, conflict free diamonds. Well tested in lab before use in jewelry. SKU
Category

21st Century and Contemporary Thai Modern Stud Earrings

Materials

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

Emerald Green Jade & Diamond Pendant Certified Untreated
Located in Southbury, CT
diamonds totaling .25 carats and five bright white marquise-cut diamonds that weigh approximately .20
Category

Vintage 1980s Chinese Artisan Pendant Necklaces

Materials

Diamond, Jade, 18k Gold

Emerald Green Jade & Diamond Pendant Certified Untreated
Emerald Green Jade & Diamond Pendant Certified Untreated
Free Shipping
W 0.78 in D 0.28 in L 1.61 in
Art Deco Opal & Diamond Ring Certified
Located in Southbury, CT
diamonds that total approximately .25 carats in this wonderful Art Deco ring. Rendered in 18K white gold
Category

Vintage 1930s American Art Deco Cocktail Rings

Materials

Diamond, Opal, 18k Gold, White Gold

14.6 Ct Natural Sapphire Certified Diamond Ring 18K Gold, 1998
Located in Herzelia, Tel Aviv
ring. Holds a Certificate of the SGL (Swiss Gem Lab) stating: Natural Sapphire weighing 14.6 Carats
Category

1990s Cocktail Rings

Materials

Diamond, Sapphire, 18k Gold

Emerald Green Jade Necklace Certified Untreated, Diamond Clasp, 33"
Located in Southbury, CT
18K white gold clasp set with five diamonds that total approximately .25 carats finishes the piece
Category

Late 20th Century Unknown Modern Beaded Necklaces

Materials

Diamond, Jade, 18k Gold

1980s GIA Large Black Opal Diamond Platinum Cocktail Ballerina Ring
Located in Miami, FL
diamond Ballerina Ring is crafted in Solid Platinum, Weighing 24.4 grams and measuring 25 mm x 31 mm, 14
Category

1990s Modern Cocktail Rings

Materials

Opal, Diamond, Black Opal, Platinum

AGL 10.35 Cts Black Crystal Opal, 7.62 Cts Tsavorite & Diamond Platinum Earrings
By Kiersten Elizabeth
Located in Charleston, SC
# 1105703 Matched Trillion Tsavorite Garnets - 2.26 Carats 6 Marquis Diamonds in center - 1.24 Carats Round
Category

21st Century and Contemporary Australian Modern Stud Earrings

Materials

Diamond, Opal, Tsavorite, Platinum

IGI Certified Vintage 17K and 14K White Gold Natural Square Emerald and Diamond
Located in Washington Depot, CT
natural round brilliant diamonds at approx. .042 carats each - .25 carats total. VS2 /SI1 - Near Colorless
Category

21st Century and Contemporary Cocktail Rings

Materials

Diamond, Emerald, White Gold

Victorian Diamond and Certified No-Heat Burma Pink Sapphire Ring
Located in Southbury, CT
carats. The diamonds are old single-cut stones and total at least .25 carats. The face measures 18.5mm
Category

Antique Late 19th Century American Late Victorian Dome Rings

Materials

Diamond, Pink Sapphire, 18k Gold, Silver

Emilio Jewelry Petite Flower and Teardrop Dangle Earring
By Emilio!
Located in New York, NY
Approx. 3.05 carats total weight diamonds.The finest conflict free diamonds set in our unique
Category

21st Century and Contemporary American Dangle Earrings

Materials

Diamond, White Diamond, 18k Gold

Emilio Jewelry Dangle Flower Earring
By Emilio!
Located in New York, NY
Approx. 3.63 carats total weight diamonds.The finest conflict free diamonds set in our unique
Category

21st Century and Contemporary American Dangle Earrings

Materials

Diamond, White Diamond, 18k Gold

Emilio Jewelry Flower Petal Earring
By Emilio!
Located in New York, NY
Approx total weight: 5.58 ct tw Diamond Color: E-F Diamond Clarity: Vs Cut: Excellent As noted
Category

21st Century and Contemporary American Stud Earrings

Materials

Diamond, White Diamond, 18k Gold

Emilio Jewelry Pear Drop Diamond Earrings
By Emilio!
Located in New York, NY
Approx total weight: 3.55CT Diamond Color: colorless Diamond Clarity: Vs-si metal: 14k: These
Category

21st Century and Contemporary American Drop Earrings

Materials

Diamond, White Diamond, 14k Gold

Emilio Jewelry 3.00 Carat Micro Pave Diamond Gold Bracelet
By Emilio!
Located in New York, NY
Approx. 3.00 carats total weight diamonds.The finest conflict free diamonds set in our unique
Category

21st Century and Contemporary American Modern Modern Bracelets

Materials

Diamond, White Diamond, 18k Gold

Late Art Deco 1.40 Carat Verneuil Sapphire 1.10 Carat Diamond Drop Earrings
Located in Napoli, IT
powerful white brilliance They measure 25 mm starting from the top Diamond for 13 mm. width – 6.9 grams
Category

Vintage 1930s Art Deco Dangle Earrings

Materials

Diamond, 18k Gold

Mauboussin Paris 2.70 Carat Diamond 18 Karat Yellow Gold Cocktail Ring, 1950s
By Mauboussin
Located in Antwerp, BE
: 25 pcs. - Total diamond weight: approx. 2.70 crt. with an average colour and clarity: F/H, vs/si
Category

Mid-20th Century French Retro Signet Rings

Materials

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

Antique Victorian Brooch Horse Shoe with 67 Diamonds and over 11 Carat Sapphires
Located in Antwerp, BE
IJGC-lab for whether they are natural or synthetic, and all diamonds in this jewel are 100% guaranteed
Category

Antique 1870s Unknown Victorian Brooches

Materials

Diamond, White Diamond, Sapphire, Blue Sapphire, Gold, 18k Gold, Rose Go...

Art Deco .17 Carat Old European Diamond and Sapphire White Gold Engagement Ring
Located in Antwerp, BE
when it comes to rose cuts. - Total diamond count: 25 pcs. - Total diamond weight: approx. 0.17 crt
Category

Antique Early 19th Century Unknown Art Deco Engagement Rings

Materials

White Diamond, Blue Sapphire, Diamond, Sapphire, Gold, 18k Gold, White Gold

Estate Three-Stone Diamond Platinum Art Deco Engagement Ring
Located in Antwerp, BE
± 0.70ct. - Total diamond count: 25 pcs. - Total diamond weight: approx. 1.40 crt. with an average colour
Category

Vintage 1920s Belgian Art Deco Engagement Rings

Materials

Diamond, White Diamond, Platinum

White and Yellow Gold Ring Set with an Emerald and Diamonds
Located in Paris, IDF
surrounding with navette and pear shaped diamonds. Colombian Emerald certified by GEM Paris Lab. Ring size : 5
Category

Late 20th Century French Contemporary Cocktail Rings

Materials

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

Art Deco Lab Created Sapphire and Natural Diamond Eternity Band
Located in Towson, MD
9ct white and yellow gold Alternating approximately .25 carat Lab Created Sapphire and
Category

Vintage 1920s British Art Deco Fashion Rings

Materials

Diamond, Sapphire

Emilio Jewelry 8.10 Carat Diamond Necklace
By Emilio!
Located in New York, NY
top 25% of dealers listed here. Appraisal from AGI an outside reputable lab will be included with
Category

21st Century and Contemporary American Modern Link Necklaces

Materials

Diamond, White Diamond, 18k Gold

Emilio Jewelry 6.00 Carat Oval Diamond Earrings
By Emilio!
Located in New York, NY
Bottom: 21.50mm Long Width: Approx. 5.00mm wide Diamonds: Approx. .32ct each totaling 20 diamonds Carat
Category

21st Century and Contemporary American Modern Hoop Earrings

Materials

Diamond, White Diamond, 18k Gold, Platinum

Emilio Jewelry 15.00 Carat Diamond Brooch or Pendant
By Emilio!
Located in New York, NY
Approx total weight: 15.00cts Diamond Color: E-F Diamond Clarity: Vs Cut: Excellent As noted we
Category

21st Century and Contemporary American Modern Brooches

Materials

Diamond, White Diamond, Platinum

Emilio Jewelry 5.00 Carat Rose Cut Diamond Ring
By Emilio!
Located in New York, NY
Approx total weight: 5.04 cts Diamond Color: E-F Diamond Clarity: Vvs Cut: Excellent Please
Category

21st Century and Contemporary American Modern Fashion Rings

Materials

Diamond, White Diamond, Pink Diamond, 18k Gold

Emilio Jewelry Seven-Row 9.50 Carat Endless Diamond Bracelet
By Emilio!
Located in New York, NY
. Approximately 623 diamonds totaling approximately 9.50 carats total weight! Color: F Clarity: Vs1 Cut
Category

21st Century and Contemporary Link Bracelets

Materials

Diamond, White Diamond, 18k Gold

Emilio Jewelry 15.27 Carat Blue Topaz Diamond Gold Oval Ring
By Emilio!
Located in New York, NY
falling into the top 25% of dealers listed here. Appraisal from AGI an outside reputable lab will be
Category

21st Century and Contemporary American Modern Fashion Rings

Materials

Diamond, White Diamond, Topaz, 14k Gold

17.00 Carat AGL Certified Unheated Ceylon Sapphire Diamond Gold Ring
By Emilio!
Located in New York, NY
center of this 18k gold ring micro pave diamonds overflowing along the sides. There is a slight visible
Category

21st Century and Contemporary Italian Contemporary Three-Stone Rings

Materials

Diamond, Sapphire, 18k Gold

Emilio Jewelry 9 Carat Diamond Stretchable Bangle in 18 Karat Rose Gold
By Emilio!
Located in New York, NY
1stdibs falling into the top 25% of dealers listed here. Appraisal from AGI an outside reputable lab will
Category

21st Century and Contemporary American Modern Bangles

Materials

Diamond, White Diamond, 18k Gold

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25 Carat Lab Diamond For Sale on 1stDibs

Find the exact 25 carat lab diamond you’re shopping for in the variety available on 1stDibs. Each design created in this style — which was crafted with great care and often made from gold, yellow gold and 18k gold — can elevate any look. You can easily find a 148 antique edition and 284 modern creations to choose from as well. Finding the perfect 25 carat lab diamond may mean sifting through those created during different time periods — you can find an early version that dates to the 19th Century and a newer variation that were made as recently as the 21st Century. There have been many well-made iterations of the classic 25 carat lab diamond over the years, but those made by Emilio!, Oshi Jewels and Diana M. Jewels are often thought to be among the most beautiful. See these pages for a round cut iteration of this accessory, while there are also cushion cut cut and emerald cut cut versions available here, too. When shopping for a 25 carat lab diamond, you’ll find that there are less available pieces for unisex or men today than there are for women.

How Much is a 25 Carat Lab Diamond?

Prices for a 25 carat lab diamond can differ depending upon size, time period and other attributes — at 1stDibs, these accessories begin at $293 and can go as high as $2,999,999, while this accessory, on average, fetches $8,750.
Questions About 25 Carat Lab Diamond
  • 1stDibs ExpertSeptember 28, 2021
    The minimum value of a 25-carat diamond ranges from $300 to $1,400. The prices change subject to the fluctuation of market factors. The value is defined based on the 4Cs — color, clarity, cut and carat weight. Shop antique, vintage and new diamond jewelry on 1stDibs.