Natural Tourmaline gemstone 5.69 ct., Octagon cut, Afghanistan, Certificate
By GRALJEWELRY
Located in Dublin, D
Afghanistan, Certificate GFCO GFCO laboratory certified Gemstone Color: Pink and Green Gemstone Type
Tourmaline
Natural Garnet Spessartite Loose Gemstone 3.93 Ct. Cushion cut, Certificate GFCO
By GRALJEWELRY
Located in Dublin, D
Natural Garnet Spessartite loose gemstone 3.93 Ct. GFCO certified Gemstone Color: Fanta Orange
Garnet
Natural Garnet Spessartite Loose Gemstone 4.91 Ct. Cushion cut, Certificate GFCO
By GRALJEWELRY
Located in Dublin, D
Natural Garnet Spessartite loose gemstone 4.91 Ct. GFCO certified Gemstone Color: Fanta Orange
Garnet
Natural Garnet Spessartite Loose Gemstone 4.62 Ct. Cushion cut, Certificate GFCO
By GRALJEWELRY
Located in Dublin, D
Natural Garnet Spessartite loose gemstone 4.62 Ct. GFCO certified Gemstone Color: Fanta Orange
Garnet
Natural Grey-Purple Spinel loose gemstone 2.07 ct., Origin Tanzania, Certificate
By GRALJEWELRY
Located in Dublin, D
Natural Grey-Purple Spinel gemstone from Tanzania GFCO Laboratory certified Gemstone Color: Purple
Spinel
Natural blue Spinel loose gemstone 2.07 ct. Certificate, Cushion Origin Tanzania
By GRALJEWELRY
Located in Dublin, D
Natural Blue Spinel gemstone from Tanzania GFCO Laboratory certified Gemstone Color: greyish-Blue
Spinel
Unique Spinel Bluish Violet natural 4.67Ct gemstone, Cushion cut, Tanzania, GIA
By GRALJEWELRY
Located in Dublin, D
Unique Natural Spinel Loose gemstone GIA Laboratory certified Gemstone Color: Bluish Violet
Spinel
Natural Violetish-BLUE Spinel loose gemstone 3.08 ct., High quality, Tanzania
By GRALJEWELRY
Located in Dublin, D
Natural Violetish-BLUE Spinel Loose gemstone GFCO Laboratory certified Gemstone Color: Violetish
Spinel
Natural Violet Spinel loose gemstone 2.97 ct, High quality, Certificate Tanzania
By GRALJEWELRY
Located in Dublin, D
Laboratory certified Gemstone Color: Lavender Violet Gemstone Type: Spinel Gemstone size: 8.96x8.90x4.77 mm
Spinel
Natural Violet Spinel loose gemstone 2.17 ct., High quality, Origin Tanzania
By GRALJEWELRY
Located in Dublin, D
Laboratory certified Gemstone Color: Violet Gemstone Type: Spinel Gemstone size: 8.52x5.74x4.78 mm Cut Grade
Spinel
Natural Violet Spinel loose gemstone 2.54 ct., High quality, Cushion, Tanzania
By GRALJEWELRY
Located in Dublin, D
Laboratory certified Gemstone Color: Violet Gemstone Type: Spinel Gemstone size: 8.57x7.3x4.58 mm Cut Grade
Spinel
Natural Garnet Rhodolite high quality! loose gemstone 4.02 ct., Cushion cut
By GRALJEWELRY
Located in Dublin, D
Natural Garnet Rhodolite loose gemstone high quality!!! Laboratory certified Gemstone Color: Vivid
Garnet
Natural Blue Spinel 2.14 ct., loose gemstone , Octagon cut, origin Tanzania
By GRALJEWELRY
Located in Dublin, D
Laboratory certified Gemstone Color: Blue Gemstone Type: Spinel Gemstone size: 9.13x5.49x4.49 mm. Cut Grade
Spinel
Natural Yellow Zircon loose gemstone 5.00 ct., High quality, Cushion , Sri Lanka
By GRALJEWELRY
Located in Dublin, D
Natural VIVID Yellow Zircon Loose gemstone from Sri Lanka GFCO Laboratory certified Gemstone Color
Zircon
Natural Blue Spinel loose gemstone 2.55 ct. High quality, Oval, Origin Tanzania
By GRALJEWELRY
Located in Dublin, D
Natural greyish-Blue Spinel loose gemstone! GFCO Laboratory certified Gemstone Color: greyish-Blue
Spinel
Natural Purplish-Pink Spinel loose gemstone 2.74 ct., High quality, Cushion cut
By GRALJEWELRY
Located in Dublin, D
Natural Purplish-Pink Spinel gemstone from Sri-Lanka LGL Laboratory certified Gemstone Color
Spinel
Natural Grey-Blue Spinel loose gemstone 2.06 ct. High quality, Cushion, Tanzania
By GRALJEWELRY
Located in Dublin, D
Natural Grey-Blue Spinel gemstone from Tanzania GFCO Laboratory certified Gemstone Color: Bluish
Spinel
Natural Grey Spinel loose gemstone 2.03 ct., High quality, Cushion cut, Tanzania
By GRALJEWELRY
Located in Dublin, D
Natural Bluish-Grey Spinel gemstone from Tanzania GFCO Laboratory certified Gemstone Color: Bluish
Spinel
Natural Greyish-BLUE Spinel loose gemstone 2.34 ct., High quality, Round cut.
By GRALJEWELRY
Located in Dublin, D
Natural Greyish-BLUE Spinel Loose gemstone GFCO Laboratory certified Gemstone Color: Greyish-BLUE
Spinel
Natural Grey Spinel loose gemstone 2.14 ct., High quality, Oval cut, Tanzania
By GRALJEWELRY
Located in Dublin, D
Natural Grey-Blue Spinel gemstone from Tanzania GFCO Laboratory certified Gemstone Color: Grey
Spinel
Spinel 2.61 Ct Grey-Blue loose natural gemstone, High quality, Cushion, Tanzania
By GRALJEWELRY
Located in Dublin, D
Natural Grey-Blue Spinel gemstone from Tanzania GFCO Laboratory certified Gemstone Color: Grey
Spinel
Natural Grey-blue Spinel loose gemstone 2.09 ct. High quality, Octagon, Tanzania
By GRALJEWELRY
Located in Dublin, D
Natural Grey-blue Spinel gemstone from Tanzania GFCO Laboratory certified Gemstone Color: Grey
Spinel
Natural Grey-Blue Spinel loose gemstone 2.19 ct. High quality, Cushion, Tanzania
By GRALJEWELRY
Located in Dublin, D
Natural Grey-Blue Spinel gemstone from Tanzania GFCO Laboratory certified Gemstone Color: Grey
Spinel
Natural Greyish-Blue Spinel loose gemstone 2.09 ct., High quality, Pear cut
By GRALJEWELRY
Located in Dublin, D
Natural Greyish-Blue Spinel gemstone from Tanzania GFCO Laboratory certified Gemstone Color
Spinel
Natural Pink Spinel loose gemstone 3.28 ct., Oval cut, Certificate, origin Burma
By GRALJEWELRY
Located in Dublin, D
certified Gemstone Color: pink Gemstone Type: Spinel Gemstone size: 9.23x8.076.25 mm Cut Grade: Very Good
Spinel
Natural Tourmaline gemstone 5.42 ct., Octagon cut, Afghanistan, Certificate
By GRALJEWELRY
Located in Dublin, D
certified Gemstone Color: Pink and Green Gemstone Type: Watermelon Tourmaline Gemstone size: 16.92x6.66x5.22
Tourmaline
Natural Tourmaline loose gemstone 11.71 ct. Octagon cut, Certificate, Mint Green
By GRALJEWELRY
Located in Dublin, D
, Certificate GFCO GFCO laboratory certified Gemstone Color: Yellowish-GREEN Gemstone Type: Mint green
Tourmaline
Natural Garnet Rhodolite high quality! loose gemstone 5.21 ct., Octagon cut.
By GRALJEWELRY
Located in Dublin, D
Laboratory certified Gemstone Color: purple Gemstone Type: Garnet Rhodolite Gemstone size: 11.20x8.19x5.95 mm
Garnet, Rhodolite
Natural Violet Spinel loose gemstone 2.18 ct., High quality, Octagon cut
By GRALJEWELRY
Located in Dublin, D
Violet Spinel gemstone GFCO Laboratory certified Gemstone Color: Violet Gemstone Type: Spinel Gemstone
Spinel
Natural Violetish-Grey Spinel loose gemstone 2.25 ct., High quality, Certificate
By GRALJEWELRY
Located in Dublin, D
. GFCO Laboratory certified Gemstone Color: Violetish-Grey Gemstone Type: Spinel Gemstone size
Spinel
Natural Blue-Grey Spinel loose gemstone 3.52 ct. High quality, Cushion, Tanzania
By GRALJEWELRY
Located in Dublin, D
Laboratory certified Gemstone Color: Blue-Grey/Grey-Blue Gemstone Type: Spinel Gemstone size: 9.04x8.18x5.75
Spinel
$10,000Sale Price|20% Off
3.79 Ct GUILD certificate Rare Natural unheated sapphire Burma Vivid purple
Located in bangkok, TH
Natural unheated sapphire Burmese burma vivid purple Guild Certified gemstone SA11 Name: Natural
Purple Sapphire
$1,312Sale Price|30% Off
Certified Natural Yellow Sapphire 2.00 Carat Oval Cut Loose Gemstone for Ring
Located in Peshawar, PK
Certified Natural Yellow Sapphire Oval Cut Loose Gemstone – Genuine Ceylon Yellow Sapphire Ring
Sapphire, Yellow Sapphire
Natural Mozambique Paraiba Tourmaline Gemstone 3.47 carats with GIA Report
Located in Los Angeles, CA
are fully certified. Gemstone Details: Carat Weight: 3.47 carats — substantial size for a standout
Tourmaline, Paraiba
Natural Blue Apatite Stone 1.36 Carats
Located in Bangkok, TH
, flawless 1.36 carats certified gemstone from Madagascar. Product Information: GEMSTONE TYPE Natural Blue
Apatite
Natural Russian Demantoid Garnet 2.21 carats with GIA Report
Located in Los Angeles, CA
of a diamond, this GIA-certified gemstone is a rare, investment-grade treasure for fine jewelry
Garnet
$240Sale Price|25% Off
7.20 carats Neon Blue Topaz Stone Emerald Cut Natural Madagascar's Gemstone
Located in Bangkok, TH
Shape Octagon Cut Emerald Shop this stunning 7.20 carat Natural Neon Blue Topaz — a certified
Topaz, Blue Topaz
GIA certified 1.11Ct Pink Sapphire -Heated (8.07x5.73x3.53mm)
Located in Singapore, SG
#burmajars #sapphire # GIA sapphire # GIA certified gems # GIA sapphire #GIA certified gemstone # GIA pink
Pink Sapphire
GIA Certified 6.07ct Oval Sapphire Gemstone
Located in רמת גן, IL
GIA Certified 6.07ct Oval Sapphire Gemstone This striking 6.07ct oval blue sapphire is a true
Sapphire
GIA Certified 4.43ct Cushion Sapphire Gemstone
Located in רמת גן, IL
GIA Certified 4.43ct Cushion Sapphire Gemstone A breathtaking treasure of nature, this 4.43ct
Sapphire
4.70 carats Pinkish Red Umbalite Garnet Stone Emerald Cut from Africa
Located in Bangkok, TH
Africa. Expertly cut into a fancy emerald shape, this certified gemstone radiates a vivid pinkish-red hue
Garnet
Captivating 6.19ct Ruby Gemstone - GIA Certified
Located in רמת גן, IL
Captivating 6.19ct Ruby Gemstone - GIA Certified Discover the captivating allure of this stunning
Ruby
Stunning 5.38ct Tourmaline Gemstone - GIA Certified
Located in רמת גן, IL
Stunning 5.38ct Tourmaline Gemstone - GIA Certified This stunning 5.38-carat Tourmaline features a
Tourmaline
Stunning 0.88ct Sapphire Gemstone - GIA Certified
Located in רמת גן, IL
Stunning 0.88ct Sapphire Gemstone - GIA Certified This elegant 0.88-carat pink sapphire, cut in a
Sapphire
Lovely 9.26ct Tourmaline Gemstone - IGI Certified
Located in רמת גן, IL
Lovely 9.26ct Tourmaline Gemstone - IGI Certified This striking 9.26-carat purplish red tourmaline
Tourmaline
Stunning 2.55ct Spinel Gemstone - GIA Certified
Located in רמת גן, IL
Stunning 2.55ct Spinel Gemstone - GIA Certified This captivating 2.55-carat heart-shaped red
Spinel
Timeless 6.16ct Chrysoberyl Gemstone - GIA Certified
Located in רמת גן, IL
Timeless 6.16ct Chrysoberyl Gemstone - GIA Certified This 6.16-carat cushion-shaped Chrysoberyl
Chrysoberyl
Exquisite 2.21ct Chrysoberyl Gemstone - IGI Certified
Located in רמת גן, IL
Exquisite 2.21ct Chrysoberyl Gemstone - IGI Certified This exquisite 2.21-carat oval chrysoberyl
Chrysoberyl
Radiant 6.99ct Apatite Gemstone - GIA Certified
Located in רמת גן, IL
Radiant 6.99ct Apatite Gemstone - GIA Certified This vibrant 6.99-carat oval apatite displays a
Apatite
Magnificent 1.34ct Emerald Gemstone - GIA Certified
Located in רמת גן, IL
Magnificent 1.34ct Emerald Gemstone - GIA Certified Presenting a stunning 1.34-carat round emerald
Emerald
Radiant 3.23ct Sapphire Gemstone - GIA Certified
Located in רמת גן, IL
unique and eye-catching gemstone. Its bright color and elegant oval shape ensure it stands out as the
Sapphire
Magnificent 6.97ct Alexandrite Gemstone - GIA Certified
Located in רמת גן, IL
This stunning 6.97-carat Alexandrite is a gemstone of rare beauty, showcasing an extraordinary
Alexandrite
Radiant 2.22ct Alexandrite Gemstone - GIA Certified
Located in רמת גן, IL
Radiant 2.22ct Alexandrite Gemstone - GIA Certified Introducing a stunning 2.22-carat oval
Alexandrite
Captivating 2.78ct Sapphire Gemstone - GIA Certified
Located in רמת גן, IL
hue. The oval shape enhances its natural brilliance, making this gemstone a mesmerizing choice for any
Sapphire
Certified 24.47 Carat Green Apatite Gemstone
Located in New York, NY
Unveil nature’s palette with this Apatite gemstone, faceted into a large oval cut that radiates
Other, Apatite
2.10 carats Loose Pinkish Red Umbalite Garnet Stone Emerald Cut from Africa
Located in Bangkok, TH
Emerald NA Buy 2.10 Carat Pinkish-Red Umbalite Garnet – Emerald Cut, Certified African Gemstone Own a
Garnet
Magnificent 35.67ct Jade Gemstone - IGI Certified
Located in רמת גן, IL
Magnificent 35.67ct Jade Gemstone - IGI Certified Behold a 35.67-carat magnificent jade of
Jade
Are you shopping for diamonds and other loose gemstones to create your own custom jewelry?
Why might you purchase a diamond or gemstone “loose” — that is, on its own, not mounted in a piece of jewelry? Perhaps you’re a connoisseur looking to acquire a unique investment. The scarcity of high-quality colored diamonds, for instance, especially pink diamonds, means that their value increases over time; the same is true of rare Kashmir sapphires and Burmese rubies. Far rarer than diamonds, Paraiba tourmaline, discovered only in the 1980s, is treasured as much for its extraordinary color as its scarcity, both of which contribute to its high value.
A more common scenario would be that you’re hoping to create a very special piece of custom jewelry, such as an engagement ring or a milestone-birthday present, and want to personally select the most beautiful, unusual, or ultra-rare stone you can find and afford. Doing so adds to the romance and substance of the gift and can be a part of the story told as the jewel is passed from generation to generation.
If this sounds like you, read on for tips on becoming one of the world’s savviest gem hunters.
Educate yourself: When buying any piece of gem-set fine jewelry, you should familiarize yourself with the factors that determine a stone’s price. This will enable you to streamline your search for the perfect gem and have intelligent, productive conversations with sellers.
There is a wealth of information online, such as our diamond-buying guide and this overview of colored gemstones for engagement rings. The buying guides of the Gemological Institute of America (GIA), searchable by stone type, are also a widely trusted source for consumers venturing into the world of diamonds and gems for the first time.
Vet your vendor: If you peruse 1stDibs with any regularity, you know there is no shortage of vendors who deal in top-quality loose gemstones. (Read about our vetted sellers.) Finding a trustworthy, established dealer may be as easy as getting a recommendation from friends or family. And, although it may sound obvious, it pays to Google your candidates — and consult customer reviews — before making contact.
Harakh Mehta, designer and founder of the Mumbai, India–based fine-jewelry brand Harakh, has an innate understanding of proper client relations, especially when the customer is in unfamiliar territory. “Start chatting with the dealer, get to know them better," he says. "It’s very important to establish a comfort level. We never push a sale, as we want it to be a carefully considered purchase. So, if the client is not in a rush, we do it over a few virtual meetings or phone calls.”
Request documentation: The best dealers go to great lengths to furnish clients with documents verifying the quality rating, natural origin and provenance of a stone — showing, for example, that loose emerald hails from the famous Muzo mine in Colombia — and disclosing any treatments applied to enhance its appearance. (And who doesn't love emerald jewelry? The most valuable emeralds are the ones that have a deep bluish-green to true green color and no visible inclusions.)
If no grading report is available for a stone you are interested in, the dealer should be able to provide an authenticity document, such as an appraisal or info sheet, that has been signed by an in-house gemologist or professional appraiser. Google those names, too, for extra peace of mind.
Ask for videos and visuals: When transacting with a gem dealer online, you should always request real-time videos and photographs, since professional photos of a stone, usually on a white background, have likely been retouched for optimal presentation.
Read more about how to buy loose gemstones and find your dream gems today on 1stDibs.