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1 Carat Solitaire Black Diamond Traditional Ring/Band 14 Karat Yellow Gold
Located in New York, NY
1 Carat Solitaire Black Diamond Traditional Ring/Band 14 Kt Yellow Gold Size 6.5 Solitaire round
Category

2010s Solitaire Rings

Materials

Diamond, Black Diamond, Gold, 14k Gold, Yellow Gold

1 Carat Solitaire Emerald Cut Black Diamond Ring/Band 18 Karat White Gold
Located in New York, NY
1 Carat + Solitaire Black Diamond Emerald cut shape Traditional Ring/Band 18 Karat White Gold Size
Category

2010s Solitaire Rings

Materials

Diamond, Black Diamond, Gold, 18k Gold, White Gold

1 Carat Ruby and Black Diamond Solitaire Ring Set in 18 Karat Yellow Gold
Located in London, GB
other rings from our collection. Ring Size: UK - O, US - 7 1 Carat Ruby (Centre) 12/0.49 Carat Black
Category

2010s British Contemporary Solitaire Rings

Materials

Black Diamond, Ruby, 18k Gold, Yellow Gold

Yellow Gold Black Diamond Solitaire Ring - 14k Rose 1.00ct Bezel Set Treated
Located in Greensboro, NC
Stone Information Natural Diamond Treatment: Color Enhanced Carat(s): 1.00ct Cut: Rose Color: Black
Category

21st Century and Contemporary Solitaire Rings

Materials

Black Diamond, 14k Gold, Yellow Gold

Silver Black Diamond Ring, 925 Princess Cut 1.00ct Men's Solitaire
Located in Greensboro, NC
Stone Information: Natural Diamond Treatment: Color Enhanced Color: Black Cut: Princess Carat
Category

21st Century and Contemporary Solitaire Rings

Materials

Black Diamond, Sterling Silver, Silver

Men's Titanium Solitaire with 10-Point Black Diamond
Located in Valenza, AL
Men's Solitaire Line ring in titanium and black diamond. The flat band structure gives this
Category

2010s Italian Modern Solitaire Rings

Materials

Black Diamond, Titanium

Tiffany & Co. Ribbon Diamond Solitaire Band - Rose Gold 18k Rnd .10ct Ring 8 1/4
By Tiffany & Co.
Located in Greensboro, NC
Natural Diamond Carat(s): .10ct Cut: Round Brilliant Color: F Clarity: VS1 Total Carats: .10ct Style
Category

21st Century and Contemporary Solitaire Rings

Materials

Diamond, 18k Gold, Rose Gold

Sterling Silver Black Diamond Ring, 925 Princess Cut 1.00ct Men's Solitaire
Located in Greensboro, NC
Stone Information: Natural Diamond Treatment: Color Enhanced Color: Black Cut: Princess Carat
Category

Late 20th Century Unknown Solitaire Rings

Materials

Black Diamond, Sterling Silver

Men's Titanium Flat Band Solitaire with 10-Point Black Diamond
Located in Valenza, AL
Men's Solitaire Line ring in titanium and black diamonds. A minimalist structure in titanium, in
Category

2010s Italian Modern Solitaire Rings

Materials

Black Diamond, Titanium

Blue Sapphire and Black Diamond Solitaire Ring Set in 18 Karat Yellow Gold
Located in London, GB
own, or layered with other rings from our collection. Ring Size: UK - K, US - 6 1/8 1.26 Carat Blue
Category

2010s British Contemporary Solitaire Rings

Materials

Black Diamond, Blue Sapphire, 18k Gold, Yellow Gold

GIA .81 Carat Round Cut Diamond Ring Baguettes 14 Karat H/SI-1 No Black Pepper
Located in New York, NY
GIA Certified: .51Ct Natural Round Cut diamonds ring. Report # 2155465879 Stating: H-color Si-1
Category

2010s American Solitaire Rings

Materials

Diamond, 14k Gold, Yellow Gold

1 Carat Oval Cut Emerald and 1.0 Carat Diamond Ring 18 Karat Yellow Gold
Located in New York, NY
, Cocktail ring 18k Gold 7.2gram Diamonds: approximate over 1 Carat Round brilliant cut Diamonds
Category

Early 20th Century Solitaire Rings

Materials

Diamond, Emerald, 18k Gold, Yellow Gold

18 Karat Ruby & Diamond Large Flower Ring with Black Spinel 9 Carats
Located in Laguna Hills, CA
This modern style custom ring features a total weight of 9 carats diamonds and black spinels
Category

21st Century and Contemporary American Contemporary Solitaire Rings

Materials

Ruby, Black Spinel, Spinel, Diamond, White Gold, 18k Gold

Antique Victorian Emerald and Solitaire Diamond Ring in Platinum Estate
Located in New York, NY
Antique Victorian Emerald & Solitaire Diamond Ring In Platinum Estate Size 5 Old Treasure
Category

Early 20th Century Solitaire Rings

Materials

Diamond, Emerald, Platinum

Antique Diamond and Platinum Solitaire Engagement Ring, circa 1920
Located in Jesmond, Newcastle Upon Tyne
A stunning antique 1920s 0.92 carat diamond and platinum solitaire engagement ring; part of our
Category

Vintage 1920s Unknown Solitaire Rings

Materials

Diamond, Platinum

GIA Certified 4.77 Carat Princess Cut Diamonds Ring G/SI-1 Platinum Classic
Located in New York, NY
GIA 3.01ct. Princes cut diamond & 1.76ct. diamonds ring. Report: 5161033707 G-color, Si-1
Category

2010s American Solitaire Rings

Materials

Diamond, Platinum

Antique 1.11Ct Diamond and 18k White Gold Solitaire Ring Circa 1935
Located in Jesmond, Newcastle Upon Tyne
A fine and impressive 1.11 carat round brilliant cut diamond and 18k white gold solitaire ring with
Category

Vintage 1930s Solitaire Rings

Materials

Diamond, White Gold

Men's Titanium Solitaire with 10-Point Green Diamond
Located in Valenza, AL
carat. Inside the shank, testimonial of the MANOJ brand, is a 1-point black diamond. Comfort, value and
Category

2010s Italian Modern Solitaire Rings

Materials

Diamond, Titanium

Men's Titanium Solitaire with 10-Point Red Diamond
Located in Valenza, AL
Men's Solitaire Line ring in titanium and red diamond. The flat band structure gives this titanium
Category

2010s Italian Modern Solitaire Rings

Materials

Diamond, Titanium

Men's Titanium Solitaire with 10-Point Blue Diamond
Located in Valenza, AL
Men's Solitaire Line ring in titanium and blue diamond. The flat band structure gives this titanium
Category

2010s Italian Modern Solitaire Rings

Materials

Blue Diamond, Titanium

Men's Titanium Solitaire with 10-Point Yellow Diamond
Located in Valenza, AL
carat. Inside the shank, testimonial of the MANOJ brand, is a 1-point black diamond. Comfort, value and
Category

2010s Italian Modern Solitaire Rings

Materials

Yellow Diamond, Titanium

Georgios Collections Yellow Gold 18 Karat Blue and White Diamond Solitaire Ring
By Georgios Collections Inc
Located in Astoria, NY
cut Blue Diamonds with a total weight of 0.24 Carats and White Diamonds with a brilliant-cut total
Category

21st Century and Contemporary Greek Contemporary Solitaire Rings

Materials

Blue Diamond, White Diamond, Diamond, Yellow Gold, Gold, Rhodium, 18k Gold

Elegant 1.18ct Black Diamond Ring in 14K White Gold
Located in רמת גן, IL
This Elegant 1.18ct Black Diamond Ring is a versatile accessory that can effortlessly transition
Category

2010s Singaporean Solitaire Rings

Materials

Black Diamond, White Gold

Men's Titanium Flat Band Solitaire with 10-Point White Diamond
Located in Valenza, AL
Men's Solitaire Line ring in titanium and white diamond. A large flat band made entirely of
Category

2010s Italian Modern Solitaire Rings

Materials

White Diamond, Titanium

2.5 Ct Natural Marquis Ruby & 1 Ct Dancing Diamond 18 Kt White Gold Ring Size 6
Located in New York, NY
cut rubies and approximately 1 carats of total Dancing diamonds & brilliant cut diamonds. This ring
Category

2010s Solitaire Rings

Materials

Diamond, Ruby, Gold, 18k Gold, White Gold

Georgios Collections 18 Karat White Gold Black Onyx and Diamond Band Ring
By Georgios Collections Inc
Located in Astoria, NY
natural Black Onyx surrounded by a bezel of White Diamonds with a total weight of 0.35 Carat. This is a
Category

21st Century and Contemporary Greek Contemporary Solitaire Rings

Materials

Onyx, White Diamond, Diamond, Gold, White Gold, 18k Gold

GIA 2.30 Carat Fancy Yellow Brown Diamonds Ring 18 Karat Edwardian Crown Deco
Located in New York, NY
diamond ring. Report # 2155624773 Stating: Fancy Brownish Yellow Si-1 clarity. (No visible black
Category

2010s American Edwardian Solitaire Rings

Materials

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

Cartier Pink Topaz, Blue Sapphire and Diamond Ring
By Cartier
Located in New York, NY
), further flanked by 2 baguette diamonds. Signed: Cartier. Ring Size is 7 1/4 . (sizable) Accompanied by
Category

Late 20th Century French Artist Solitaire Rings

Materials

Topaz, Blue Sapphire, Diamond, 18k Gold

Georgios Collections 18 Karat Gold Diamond and Sapphire Wide Band Ring
By Georgios Collections Inc
Located in Astoria, NY
This S.Georgios gorgeous designer wide band Sapphire and Diamond Ring in 18 Karat Yellow Gold and
Category

21st Century and Contemporary Greek Contemporary Solitaire Rings

Materials

Blue Diamond, Tanzanite, Star Sapphire, Yellow Sapphire, Pink Sapphire, ...

Natural spinel no heat violet color ALGT certified Diamond Ring 18Kt White Gold
Located in München, DE
) No. 13036784 dated June 7, 2021. Set with 38 brilliant-cut diamonds approx. 0.25 carat in total
Category

21st Century and Contemporary European Contemporary Solitaire Rings

Materials

Diamond, Spinel, White Gold

Natural Onyx Emerald Cut Vintage Style Filigree Cocktail Ring in Solid 9K Gold
Located in Bangkok, TH
STONE(S) Stone: Natural Onyx Color: Black Shape: Emerald Cut Size: 15 x 9 mm. Number: 1 Weight: 5.52
Category

21st Century and Contemporary Thai Art Deco Solitaire Rings

Materials

Onyx, 9k Gold, White Gold

1.20 Carat Platinum Engagement Round Diamond Solitaire Twist Bespoke 4 Claw Ring
By Hasbani Diamonds
Located in London, GB
encrusted upper branch the mount total diamond weight is 0.20 carat, the centre stone is an impressive 1
Category

2010s British Modern Engagement Rings

Materials

Pink Sapphire, Yellow Sapphire, Green Sapphire, Tanzanite, Topaz, Tourma...

Silver Black Diamond Ring, 925 Princess Cut 1.00ct Men's Solitaire
Located in Greensboro, NC
This ring is a size 11 - 11 1/4, but it can be re-sized up or down 1 size for a $25 fee. Once a
Category

21st Century and Contemporary More Rings

Materials

Black Diamond, Silver

Silver Black Diamond Ring, 925 Princess Cut 1.00ct Men's Solitaire
Located in Greensboro, NC
This ring is a size 11 - 11 1/4, but it can be re-sized up or down 1 size for a $25 fee. Once a
Category

Late 20th Century Unknown Cocktail Rings

Materials

Black Diamond, Silver

Sterling Silver Black Diamond Ring, 925 Princess Cut 1.00ct Men's Solitaire
Located in Greensboro, NC
Stone Information: Natural Diamond Treatment: Color Enhanced Color: Black Cut: Princess Carat
Category

21st Century and Contemporary More Rings

Materials

Black Diamond, Sterling Silver

Vintage 1940s Diamond and Platinum Solitaire Engagement Ring
Located in Jesmond, Newcastle Upon Tyne
A fine and impressive 0.50 carat diamond and platinum solitaire style engagement ring; part of our
Category

Vintage 1940s Unknown Engagement Rings

Materials

Diamond, Platinum

1 Ct Natural Emerald, Oval Stone and Diamond Ring 14 Karat Yellow Gold
Located in New York, NY
approximately 1 Ct Natural Brazilian Emerald And Diamond Ring 14 Karat Yellow Gold Size 6 Oval
Category

2010s Cocktail Rings

Materials

Diamond, Emerald, 14k Gold, Yellow Gold

Platinum Black Opal & Diamond Ring, 900 Oval Cabochon Cut 1.57ctw
Located in Greensboro, NC
Stone Information: Genuine Black Opal (Australian) Carat: 1.29ct Cut: Oval Cabochon Size: 10.7mm x
Category

21st Century and Contemporary More Rings

Materials

Diamond, Opal, Black Opal, Platinum

Tiffany & Co. 0.33 Carat Princess cut Diamond and Platinum Engagement Ring
By Tiffany & Co.
Located in Atlanta, GA
This Tiffany and Co. 0.33 carat Princess cut Diamond solitaire Engagement Ring features an F color
Category

21st Century and Contemporary American Modern Engagement Rings

Materials

Diamond, Platinum

Yellow Gold Ruby & Diamond Black Hills Gold Halo Ring 10k Marquise .25ctw Leaves
Located in Greensboro, NC
Information Natural Ruby Treatment: Heating Carat(s): .13ct Cut: Marquise Color: Red Natural Diamonds Carat
Category

21st Century and Contemporary Cocktail Rings

Materials

Diamond, Ruby, 10k Gold, Yellow Gold

Platinum Black & White Diamond Halo Ring, 950 Round Cut 1.89ctw Engagement
Located in Greensboro, NC
in 950 platinum and features a color-enhanced natural black diamond solitaire with 1.17 carat weight
Category

21st Century and Contemporary More Rings

Materials

White Diamond, Platinum

.925 Sterling Silver 1/10 Carat Treated Black Diamond Solitaire Pendant Necklace
Located in New York, NY
necklace. This unique solitaire diamond necklace features a single treated black diamond which is 4 Prong
Category

21st Century and Contemporary Indian Contemporary Pendant Necklaces

Materials

Diamond, Black Diamond, Sterling Silver

Platinum Black & White Diamond Halo Ring, 950 Round Cut 1.89ctw Engagement
Located in Greensboro, NC
in 950 platinum and features a color-enhanced natural black diamond solitaire with 1.17 carat weight
Category

21st Century and Contemporary Fashion Rings

Materials

White Diamond, Platinum, Sterling Silver, Enamel

Carlo Viani Howlite & Black Diamond Halo Ring Rose Gold 14k Round .32ctw Twist
Located in Greensboro, NC
Treatment: Color Enhanced (black) Total Carats: .32ctw Cut: Round Brilliant Color: Black; G - H Clarity: SI1
Category

Late 20th Century Unknown Cocktail Rings

Materials

Black Diamond, Rose Gold

New .50ctw Rose Cut Black & White Diamond Ring, Sterling Silver Square Halo
Located in Greensboro, NC
: I2 Color: H - I; Black Cuts: Rose (solitaire) & Single (accents) Total Carats: 0.50ctw Style
Category

21st Century and Contemporary More Rings

Materials

White Diamond, Sterling Silver

White Gold Black & White Diamond Halo Engagement Ring, 14k Princess Cut 1.14ctw
Located in Greensboro, NC
: Natural Diamond Solitaire Carat: .44ct (weighed) Cut: Princess Color: F Clarity: SI2 Size: 4.3mm X
Category

21st Century and Contemporary More Rings

Materials

White Diamond, White Gold

New .50ctw Rose Cut Black & White Diamond Ring, Sterling Silver Square Halo
Located in Greensboro, NC
Color: H - I; Black Cuts: Rose (solitaire) & Single (accents) Total Carats: 0.50ctw Style
Category

Late 20th Century Unknown Cocktail Rings

Materials

White Diamond, Sterling Silver

18K Gold Oval Cabochon Black Onyx Diamond & Tsavorite Dual Halo Cocktail Ring
Located in Montclair, NJ
solitaire with fine diamond and Tsavorites accents throughout. The oval cabochon cut onyx shows a nice black
Category

21st Century and Contemporary Cocktail Rings

Materials

Diamond, Onyx, Tsavorite, 18k Gold, White Gold

2 carats Round Diamond Double Two Stone Spiral Halo Pave Vintage White Gold Ring
By Galt & Bro. Jewelers
Located in Oakton, VA
Silvery Warm Grey Round Solitaire Diamonds (1 carat each Diamond) 0.10 Carats of small halo diamonds Very
Category

1990s American Artisan Bridal Rings

Materials

Diamond, 14k Gold, White Gold

Vintage 18K White Gold Round Cabochon Black Onyx Diamond Dual Halo Cocktail Ring
Located in Montclair, NJ
black onyx solitaire with very fine diamond accents throughout. The bold round cabochon cut onyx shows a
Category

21st Century and Contemporary Cocktail Rings

Materials

Diamond, Onyx, 18k Gold, White Gold

Berca 1.80 Kt White Diamond Onyx 18 Carat White Gold Setting Dome Cocktail Ring
By Berca Atelier
Located in Valenza, IT
Beautiful Dome Ring, an one-of-a-kind piece, pure, timeless, Art Deco style. The black of hand
Category

21st Century and Contemporary Italian Art Deco Dome Rings

Materials

Onyx, White Diamond, White Gold, 18k Gold

Yellow Gold Onyx & Diamond Ring - 14k
Located in Greensboro, NC
Gold & 14k White Gold Stone Information Natural Onyx Color: Black Natural Diamonds Carat(s): .06ctw
Category

21st Century and Contemporary Cocktail Rings

Materials

Diamond, Onyx, Yellow Gold

Yellow Gold Sapphire & Diamond Men's Ring - 14k Oval Cabochon 3.25ctw
Located in Greensboro, NC
Color: Black Natural Diamonds Carat(s): .15ctw Cut: Round Brilliant Color: H - I Clarity: SI1 - SI2
Category

21st Century and Contemporary Cocktail Rings

Materials

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

.925 Sterling Silver 1 1/2 Carat Diamond Solitaire Milgrain Stud Earrings
Located in New York, NY
diamonds in a 1 1/2 Carat diamond total weight. These sparkling solitaire style diamonds are placed in the
Category

21st Century and Contemporary Indian Modern Stud Earrings

Materials

Diamond, White Diamond, Sterling Silver

Yellow Gold Amethyst & Diamond Vintage Halo Ring 14k Marq 6.58ctw Floral Scallop
Located in Greensboro, NC
Information Natural Amethyst Carat(s): 5.78ct Cut: Marquise Color: Purple Natural Diamonds Carat(s): .80ctw
Category

21st Century and Contemporary Cocktail Rings

Materials

Amethyst, Diamond, 14k Gold, Yellow Gold

Yellow Gold Onyx Diamond XO Heart Ring - 14k Inlay .14ctw Love Cluster
Located in Greensboro, NC
Information Natural Onyx Cut: Inlay Color: Black Natural Diamonds Carat(s): .14ctw Cut: Round Brilliant
Category

21st Century and Contemporary Cocktail Rings

Materials

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

Charles Krypell Onyx & Diamond Halo Ring Sterling 925 Yellow Gold 18k Oval.35ctw
By Charles Krypell
Located in Greensboro, NC
: Oval Checkerboard Cabochon & Round Color: Black Natural Diamonds Carat(s): .35ctw Cut: Round Brilliant
Category

21st Century and Contemporary Cocktail Rings

Materials

Diamond, Onyx, 18k Gold, Yellow Gold, Sterling Silver

GIA Certified Natural Black Diamond 1 Carat Ring in 18K Black Gold Emerald Cut
Located in Darmstadt, DE
GIA Certified Natural Black Diamond 1 Carat Ring in 18K Black Gold Emerald Cut Black is Beautiful
Category

2010s German Modern Loose Gemstones

Materials

Black Diamond, Diamond, Gold, 18k Gold

White Gold Onyx & Diamond Men's Ring - 10k Geometric Rectangle
Located in Greensboro, NC
Gold Stone Information Natural Onyx Color: Black Natural Diamonds Carat(s): .04ctw Cut: Round
Category

21st Century and Contemporary Band Rings

Materials

Diamond, Onyx, 10k Gold, White Gold

GIA Certified Natural Black Diamond 1 Carat Ring in 18K Black Gold Round Cut
Located in Darmstadt, DE
GIA Certified Natural Black Diamond 1 Carat Ring in 18K Black Gold Round Cut Black is Beautiful
Category

2010s German Modern Loose Gemstones

Materials

Black Diamond, Gold, 18k Gold

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1 Carat Black Diamond Solitaire Ring For Sale on 1stDibs

On 1stDibs, you can find the most appropriate 1 carat black diamond solitaire ring for your needs in our varied inventory. Each design created in this style — which was crafted with great care and often made from silver, gold and sterling silver — can elevate any look. Our collection of these items for sale includes 72 vintage editions and 72 modern creations to choose from as well. If you’re looking for a 1 carat black diamond solitaire ring from a specific time period, our collection is diverse and broad-ranging, and you’ll find at least one that dates back to the 19th Century while another version may have been produced as recently as the 21st Century. Finding an appealing 1 carat black diamond solitaire ring — no matter the origin — is easy, but Tiffany & Co., Georgios Collections Inc and ROHIT JAIN each produced a popular version that is worth a look. A round cut version of this piece has appeal, but there are also brilliant cut and mixed cut versions for sale. Finding a 1 carat black diamond solitaire ring for sale for women should be easy, but there are 55 pieces available to browse for unisex as well as men, too.

How Much is a 1 Carat Black Diamond Solitaire Ring?

On average, a 1 carat black diamond solitaire ring at 1stDibs sells for $2,475, while they’re typically $110 on the low end and $382,550 for the highest priced versions of this item.

Finding the Right rings for You

Antique and vintage rings have long held a special place in the hearts of fine jewelry lovers all over the world.

No matter their origin or specific characteristics, rings are timeless, versatile accessories. They’ve carried deep meaning since at least the Middle Ages, when diamond rings symbolized strength and other kinds of rings were worn to signify romantic feelings or to denote an affiliation with a religious order. Rings have also forever been emblematic of eternity.

Over time, rings have frequently taken the form of serpents, which have long been associated with eternal life, health and renewal. Italian luxury jewelry house Bulgari has become famous for its widely loved Serpenti motif, for example, and its Serpenti ring, like the other accessories in the collection, began as an homage to jewelry of the Roman and Hellenistic eras. The serpent is now a popular motif in fine jewelry. Jewelry devotees have long pined for rings adorned with reptiles, thanks to antique Victorian rings — well, specifically, Queen Victoria’s illustrious engagement ring, which took the form of a gold snake set with rubies, diamonds and an emerald (her birthstone). Designs for Victorian-era engagement rings often featured repoussé work and chasing, in which patterns are hammered into the metal.

Engagement rings, which are reliably intimidating to shop for, are still widely recognized as symbols of love and commitment. 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

The most collectible antique engagement rings and vintage engagement rings are those from the Victorian, Edwardian and Art Deco eras. Named for the monarchies of the four King Georges, who in succession ruled England starting in 1714 (plus King William’s reign), antique Georgian rings, be they engagement rings or otherwise, are also coveted by collectors. Pearls, along with colored gemstones like garnets, rubies and sapphires, were widely used in Georgian jewelry. The late-1700s paste jewelry was a predecessor to what we now call fashion or costume jewelry

The Art Nouveau movement (1880–1910) brought with it rings inspired by the natural world. Antique Art Nouveau rings might feature depictions of winged insects and fauna as well as women, who were simultaneously eroticized and romanticized, frequently with long flowing hair. Art Deco jewelry, on the other hand, which originated during the 1920s and ’30s, is by and large “white jewelry.” White metals, primarily platinum, were favored over yellow gold in the design of antique Art Deco rings and other accessories as well as geometric motifs, with women drawn to the era’s dazzling cocktail rings in particular.

Whether you’re hunting down a chunky classic for a Prohibition-themed cocktail party or seeking a clean contemporary design to complement your casual ensemble, find an exquisite collection of antique, new and vintage rings on 1stDibs.

Questions About 1 Carat Black Diamond Solitaire Ring
  • 1stDibs ExpertOctober 5, 2021
    What a 1-carat black diamond is worth varies according to the cut, type (natural/treated) and the demand and supply. Both natural and treated black diamonds increase in value as demand increases. It ranges from $100 to $3,000 per carat. On 1stDibs, you can find a variety of unique and designer black diamond jewelry & watches from different periods to choose from.