

Check out our
brand new digital catalog!
Visit Our Digital Catalogue


Courant Miami
Check out our editorial
on Vol. 2 Issue
View Editorial


Schedule your
Private Shopping
Appointment
Text, call 305-851-1460 or email
ChristinaTermine@aol.com
to schedule your private shopping
appointment to shop Fine Jewelry or
discuss a makeover, custom jewelry piece,
appraisal & more!



Diamond Tension
Set Collection


Specializing in Makeovers
and custom designed & created jewelry,
from contemporary to classic.




Gemstone Pendants


Specializing in Makeovers
and custom designed & created jewelry,
from contemporary to classic.



Stackable Bracelets


Riviera Necklaces & Tennis
Bracelets with Diamonds
& Precious Gemstones




14 Karat gold &
Diamond Rings!



Offers Birthstone Jewelry
in a variety of designs,
including necklaces, pendants,
earrings and rings.












In The Spotlight
With Emily Zubi Welcomes
Christina Termine
View Interview
THE ESSENTIALS
Don't know where to begin? Pick one of our essential jewelry categories below and start exploring what we have to offer.
SHOP BIRTHSTONE JEWELRY
We offer Birthstone Jewelry in a variety of designs, including necklaces, pendants, earrings and rings.
















FEATURED PRODUCTS
Flexible Diamond Tennis Bangle Bracelets
Important Pricing Notice
Due to the recent global increase in gold prices in 2025, actual selling prices may be 20-25% higher than the prices listed on this website. Before processing payment and shipping, we will reconfirm the final price with you for approval.
We appreciate your understanding and support.— Team DOTK
Jumbo Chain Diamond Earrings
Important Pricing Notice
Due to the recent global increase in gold prices in 2025, actual selling prices may be 20-25% higher than the prices listed on this website. Before processing payment and shipping, we will reconfirm the final price with you for approval.
We appreciate your understanding and support.— Team DOTK
Large Oval Diamond Earrings
Important Pricing Notice
Due to the recent global increase in gold prices in 2025, actual selling prices may be 20-25% higher than the prices listed on this website. Before processing payment and shipping, we will reconfirm the final price with you for approval.
We appreciate your understanding and support.— Team DOTK
White Gold Chain Diamond Earrings
Important Pricing Notice
Due to the recent global increase in gold prices in 2025, actual selling prices may be 20-25% higher than the prices listed on this website. Before processing payment and shipping, we will reconfirm the final price with you for approval.
We appreciate your understanding and support.— Team DOTK
Rectangular Pave Diamond Hopp Earrings
Important Pricing Notice
Due to the recent global increase in gold prices in 2025, actual selling prices may be 20-25% higher than the prices listed on this website. Before processing payment and shipping, we will reconfirm the final price with you for approval.
We appreciate your understanding and support.— Team DOTK
Dropshaped Diamond Hoops
Important Pricing Notice
Due to the recent global increase in gold prices in 2025, actual selling prices may be 20-25% higher than the prices listed on this website. Before processing payment and shipping, we will reconfirm the final price with you for approval.
We appreciate your understanding and support.— Team DOTK
Oval Chain Link Diamond Hoop Earrings
Important Pricing Notice
Due to the recent global increase in gold prices in 2025, actual selling prices may be 20-25% higher than the prices listed on this website. Before processing payment and shipping, we will reconfirm the final price with you for approval.
We appreciate your understanding and support.— Team DOTK
Large Diamond Hoops
Important Pricing Notice
Due to the recent global increase in gold prices in 2025, actual selling prices may be 20-25% higher than the prices listed on this website. Before processing payment and shipping, we will reconfirm the final price with you for approval.
We appreciate your understanding and support.— Team DOTK
MEET CHRISTINA
Diamonds on the Key specializes in only the highest quality diamonds, having the finest cut and proportions and offers an exciting, wide selection of classic and contemporary diamond jewelry. With a 35-year career in the international fine jewelry industry, Christina Termine brings her expertise and knowledge to her clientele with the goal of providing both an education in diamonds and offering the best pricing. Christina aims to make her customers feel confident and informed in their diamond purchase, while they receiving the highest level of service.
Christina received her Graduate Diamonds Diploma from the Gemological Institute of America (GIA) and insists on buying and selling GIA certified diamonds, as this nonprofit institution is regarded as the world’s foremost authority in gemology. When meeting with Christina in her private jewelry salon, located in Key Biscayne, Florida, clients are professionally guided through the diamond selection process, while discussing their jewelry needs, in order to find the perfect match.
“Forming a reliable and trusting bond with your jeweler is just as significant as the trust and service provided by your doctor, real estate agent, lawyer or financial advisor and that bond is what I hope to build with and every customer”.


Gifts Under $500

Diamond Engagement Rings
RECENT CUSTOM DESIGNS
A little inspiration... view a few of our most recent customer creations.