Don't know where to begin? Pick one of our essential jewelry categories below and start exploring what we have to offer.

Bracelets (36)

Earrings (75)

Necklaces (129)

Rings (83)

$500 & Under Gift Suggestions (46)


5 Stone Sapphire and Diamond Ring

14K White Gold Ring with 5 Round Blue Sapphires with Diamond Halos. S: 1.63 ct tw D: 0.31 ct tw

Sapphire and Diamond Stud Earrings

14K White Gold, Round Blue Sapphire and Diamond Halo Earrings. S: 2.27 ct tw D: 0.84 ct tw

Sapphire and Diamond Statement Earrings

18K White Gold, Blue Sapphire and Diamond Oval Drop Earrings. S: 7.02 ct tw D: 1.06 ct tw

Peridot and Diamond Ring

14K Yellow Gold Peridot & Diamond Ring P: 0.94 ct tw D: 0.02 ct tw Available by special order.

Peridot and Diamond Pendant

14K Yellow Gold Peridot & Diamond Pendant P: 1.15 ct tw D: 0.21 ct tw Available by special order.

Peridot and Diamond Drop Earrings

14K Yellow Gold Peridot & Diamond Dangle Earring; 2 inches long P: 7.76 ct tw D: 0.48 ct tw Available by special order.

Fine Jewelry Cleaner

The Fine Jewelry Cleaner is safe to use to clean diamonds, cubic zirconia, moissanite, sapphires, gold, platinum jewelry and more. The cleaner uses an advanced surfactant-based formula rather than a detergent-based one, requiring no agitation or rinsing, leaving jewelry sparkling. Lightly scented and designed to be used daily. Ideal for: Bridal jewelry, engagement rings, and other fine gold and platinum jewelry. Do not use on pearls or other porous gemstones. NOTE: These cleaners remove grime, oil and dirt but will not remove tarnish. Contact Christina to discuss professional steam cleaning, polish and fresh rhodium for your pieces to sparkle like new.

Round Ruby and Diamond Ring

14K White Gold, Oval Ruby and Diamond Ring. D: 0.58 ct tw R: 1.71 ct tw Available in variety of semi precious gemstones and styles by special order. Price varies.
Christina Termine


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”.

Christina Termine

Gifts Under $500


Diamond Engagement Rings



A little inspiration... view a few of our most recent customer creations.


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