Round brilliant halo ring
- Center
- 3.01 ct
- Color
- I
- Clarity
- SI1
- Metal
- Platinum
GIA certified. Halo and mounting hold 142 round brilliants, 2.46 ct total, F color, VS clarity, set three-quarters of the way around.
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Collections
Every collection is designed in house and made in limited numbers. Pricing is by request, so call or book a visit to see a piece in person.

The 2024 Collection
Carat weight, color and clarity are listed for every piece. Center stones marked GIA are certified by the Gemological Institute of America.
Six engagement rings built around large center stones, five of them GIA certified.
GIA certified. Halo and mounting hold 142 round brilliants, 2.46 ct total, F color, VS clarity, set three-quarters of the way around.
GIA certified oval. Pavé round brilliants, 0.48 ct total, H color, VS2 clarity, set three-quarters of the way around.
GIA certified. Two half-moon side diamonds, 0.50 ct each, G color, SI1 clarity.
GIA certified. Halo and half-way mounting diamonds total 0.40 ct, G color, SI1 clarity.
Fancy yellow radiant cut. Two trillion side diamonds, 0.51 ct each, G color, VS1 clarity.
GIA certified. Two tapered baguettes, 0.33 ct each, H color, VS2 clarity.
Diamond eternity and wedding bands.
16 oval diamonds set all the way around.
7 emerald cuts totaling 3.70 ct and 7 Asscher cuts totaling 2.85 ct.
24 emerald-cut diamonds set all the way around.
Eight rows of pavé-set round brilliants.
Two diamond cuts paired in one design.
Round brilliants totaling 1.61 ct crossed with baguettes totaling 1.45 ct.
Natural rubies, sapphires and emeralds, all AAA quality, set with white diamonds.
Natural pear-shaped rubies with pear-shaped diamonds, G color, VS clarity.
Natural oval ruby surrounded by round brilliants, G color, VS clarity.
A natural blue round sapphire of 1.11 ct in each earring, with round brilliants, G color, VS2 clarity.
GIA-certified natural blue round sapphire with a 0.60 ct trillion diamond on each side, G color, VS clarity.
Seven pear-shaped emeralds with round brilliants, G color, VS clarity.
A 4.55 ct pear-shaped emerald in each earring, with round brilliants, H color, SI1 clarity.
Statement pieces in white diamonds.
Baguettes totaling 2.65 ct with round brilliants totaling 2.10 ct, as a pair.
An assortment of diamond shapes and sizes.
One-of-a-kind collections
Made from fine Colombian and Brazilian emeralds, a stone said to have been Cleopatra’s favorite. Frank Isaac sets them to show that same beauty and power.



A one-of-a-kind collection built on the leaf, nature’s sign of new life and change, in designer-cut, expertly matched white diamonds.


A modern interpretation of the jewels made famous by history’s royalty: bold neck, hand and wrist pieces in pure white round brilliants, joined by the fancy shapes once favored by Europe’s monarchies.



Custom one-of-a-kind pieces built on what diamond jewelry has always stood for: luxury, opulence and rare beauty.


Designs and diamonds found only here: perfectly matched baguette cuts surrounded by round brilliants. Never duplicated.


