Guaranteed Brilliant
A curated collection of our most dazzling diamonds. Hand-picked in person by our expert team of gemologists for their superior grades and ideal shine, these no-miss, forever-wear, never-fail gems are here to redefine the gemstone game, one sparkling facet at a time.
A CUTABOVE
The sparkliest of the sparkly. Graded above Super Ideal, these gemstones sizzle with jaw dropping radiance thanks to their illusory fire, scintillation, and brilliance that shatter expectations and steal breath.
OUR CRITERIA
SUPER IDEAL CUT GRADE
The top performing cut grade (outside of Guaranteed Brilliant), these diamonds are cut with exacting precision to maximize light performance and supply sparkle.
COLORLESS
Often referred to as "colorless," a DEF score promises crisp white sparkle and bouncy, undiluted brilliance.
VVS2+
Clean, clear, beautiful. With a VVS2+ grade, inclusions are invisible to the naked eye just barely visible under 10x magnification for a flawless look every time.
EX POLISH, EX SYMMETRY
Polished to perfection with no visible imperfections. Guaranteed Brilliant diamonds boast pleasingly aligned facets that optimize light to create incandescent luminance.
GIA CERTIFIED
Like Harvard but for diamonds. Rest easy knowing that your diamond has been certified by the most trusted name in the business.
NO TINGES, BLUE NUANCE, PHOSPHORESCENCE
Not all lab diamonds are created equal. Many have off-color tinges causing them to appear dull, cloudy, and anything but colorless. Vault diamonds are hand-inspected to be tinge-free, and will sparkle on even the cloudiest of days.
IDEAL DEPTH RANGES
Vault diamonds are guaranteed Goldilocks approved. Not too shallow and not too deep, each diamond achieves ideal depth for light refraction.
ADDITIONALASETS
On hand videos allow you to see every dazzling angle while ASET recordings provide the whole sparkling picture-utilizing red, green, and black lights to evaluate light return and guarantee brilliance. Email hello@frankdarling.com to request! ✨
NO QUESTIONS ASKED,90 DAY RETURNS
We're so confident that you'll love our Vault diamonds that we've extended the return policy from 30 days to 90, giving you plenty of time—and peace-of-mind—to decide if they're right for your loved one.
GEMOLOGISTVETTED
When it comes to our dazzling diamonds, nothing less than perfection will do. Our team of expert gemologists devotes unwavering attention to every dazzling stone, personally inspecting each one to guarantee excellence and deliver shine.
ADDITIONALASETS
On hand videos allow you to see every dazzling angle while ASET recordings provide the whole sparkling picture-utilizing red, green, and black lights to evaluate light return and guarantee brilliance. Email hello@frankdarling.com to request! ✨
NO QUESTIONS ASKED,90 DAY RETURNS
We're so confident that you'll love our Vault diamonds that we've extended the return policy from 30 days to 90, giving you plenty of time—and peace-of-mind—to decide if they're right for your loved one.
GEMOLOGISTVETTED
When it comes to our dazzling diamonds, nothing less than perfection will do. Our team of expert gemologists devotes unwavering attention to every dazzling stone, personally inspecting each one to guarantee excellence and deliver shine.
Frequently asked questions forGuaranteed Brilliant Diamonds
Guaranteed Brilliant diamonds have been vetted in person by our team of expert gemologists to ensure superior quality and unmistakeable sparkle. These diamonds maintain top grades across the three categories of diamond grading (cut, color, and clarity), boast no fluorescence, tinges, or blue nuance, and maintain excellent polish and symmetry. Additionally, all Guaranteed Brilliant diamonds come with an extended 90-day warranty to ensure satisfaction. Simply put, they are the best of the best.
All Guaranteed Brilliant diamonds are eligible for free 90-day returns for an in-store exchange or full refund. Simply mail your return with our complimentary UPS air shipping with its original documentation.
Your return window begins from the original date your purchase is ready to ship or be picked up, and if you request a special later delivery, your return date will remain the same as its original shipping date. Please note that all Guaranteed Brilliant diamonds are certified and thus, must be returned with the original certificate or a $250 fee will apply.
At Frank Darling, we are committed to procuring superior diamonds in all different shapes and prioritize round brilliant, oval, emerald, elongated cushion and cushion, Asscher, radiant, pear, Marquise, princess, rose, old-European, old-mine, and trillion cut diamonds. However, as only the best of the best diamonds are Guaranteed Brilliant, certain less common shapes may less likely to be available at any given time. For example, a rough diamond with flawless clarity that is completely colorless has a higher chance of being cut into the more common round brilliant or princess cut shapes than a rose cut or old-European cut style thanks to demand for the more popular stone shapes. So, while we strive to maintain a collection of perfect diamonds in every shape our Guaranteed Brilliant inventory is really dependent on availability.
Guaranteed Brilliant diamonds are exclusively GIA certified (the strictest certification organization), and take the process a step further by verifying the quality and sparkle in person. This allows us to ensure that each and every diamond is as beautiful as it is rare.
Most people understand fluorescence as a phenomenon that produces a visible glow after being exposed to certain types of light. You know, like the zany-looking deep sea fish that seem to emit neon colors. But it's not just the fish of the sea that can exhibit fluorescence. Thanks to trace elements of impurities within a stone's crystal structure, diamonds can also exhibit this interesting luminescence.
While many people consider fluorescence to be a unique and interesting characteristic of a diamond, it can often also produce a few undesirable results. Firstly, diamond fluorescence can interfere with the natural beauty of the stone and impart a cloudy look. This, in turn, can affect the color of the diamond and make it appear less sparkly. All Guaranteed Brilliant diamonds are fluorescence free — meaning you can rest easy knowing your diamond will never look milky, cloudy or glow blue in UV light.
