FREQUENTLY
ASKED
QUESTIONS

The 4Cs — Cut, Color, Clarity, and Carat weight — are the global standard for assessing and communicating the quality of any diamond. Developed by GIA, they determine a diamond’s beauty, rarity, and value.

Round brilliant cuts are typically the most sought-after, followed by fancy shapes such as oval, emerald, and pear. Value is ultimately determined by the combination of all 4Cs, not shape alone.

An investment-grade diamond typically meets strict criteria: D-H color, VS2 clarity or above, excellent cut, 1 carat or larger, and certified by a top-tier laboratory such as GIA or IGI.

Not all diamonds are certified, but all diamonds offered by Kether Diamonds come with certification from internationally recognized laboratories, ensuring complete transparency and verifiable quality.

Diamond pricing is based on the Rapaport Price List as a baseline, adjusted for the specific 4Cs, market demand, and supply conditions. Kether Diamonds provides transparent pricing based on current market rates.

GIA — the Gemological Institute of America — is the world’s most respected independent gemological laboratory. It created the 4Cs grading system and sets the global standard for diamond grading.

IGI — the International Gemological Institute — is one of the largest independent gem certification and appraisal institutes, with laboratories in major diamond centers including Antwerp, Mumbai, and New York.

HRD Antwerp (Hoge Raad voor Diamant) is Belgium’s leading gemological laboratory, established in the heart of Antwerp’s diamond district. It is widely recognized throughout Europe and the global trade.

Certification provides an independent, unbiased assessment of a diamond’s quality. It protects buyers from misrepresentation, enables accurate pricing, and is essential for any future resale or insurance valuation.

Yes. All major laboratories — GIA, IGI, and HRD — provide online verification portals where you can enter a report number to confirm its authenticity and view the complete grading details.

Diamonds offer a unique combination of scarcity, portability, and global demand. As a tangible, portable asset not subject to currency fluctuations, they serve as an effective store of wealth and portfolio diversifier.

High-quality, certified diamonds have historically maintained and increased in value over the long term. Investment-grade diamonds are recognized as a hard asset and alternative investment class.

Investment-grade diamonds typically require: minimum 1 carat, D-H color grade, VS2 or above clarity, excellent cut quality, and certification from GIA or IGI. Fancy colored diamonds of exceptional quality also qualify.

Yes. Diamonds are one of the most internationally tradable assets. With a recognized certificate, a diamond can be liquidated in any of the world’s major diamond centers including New York, Antwerp, Ramat Gan, Dubai, and Hong Kong.

Kether Diamonds sources directly from trusted global suppliers, mining companies, and auction houses. Every stone is independently graded and verified before being offered to clients.

Yes. Kether Diamonds works with professional wholesale clients, trading companies, and institutional buyers. We maintain long-term relationships with verified partners across the global diamond trade.

Absolutely. We offer private sourcing services where clients specify their exact requirements — shape, carat, color, clarity — and our team locates the best available stones from our global network.

Yes. We arrange fully insured international shipments through trusted diamond logistics specialists. All shipments are fully documented and comply with international trade regulations.

Yes. Whether you are building a collection, fulfilling a manufacturing order, or acquiring a diversified portfolio, we can source and supply multiple stones to your exact specifications.

Yes. We offer private, confidential consultations for clients seeking tailored advice on acquisition, portfolio strategy, or market timing. Contact us to arrange a secure consultation.