Trusted Expertise in
High-Value Large Gems
& Jewelry Appraisals

Confidential valuations of rare and antique gems—five generations of heritage, 25+ years of global expertise.

850+ Clients Trust Us

Gemstone

Trusted Expertise in
High-Value Large Gems
& Jewelry Appraisals

Get consistent, high-quality chemical supplies delivered on time, every time.

850+ Clients Trust Us

Gemstone

Our Core Thing

Our Core Thing

Our mission, built on five generations as a trusted family of gem and jewellery professionals, is to provide precise, confidential, and internationally trusted valuations of high-value gemstones and fine jewellery—empowering clients to make informed decisions with confidence and integrity.

Our mission, built on five generations as a trusted family of gem and jewellery professionals, is to provide precise, confidential, and internationally trusted valuations of high-value gemstones and fine jewellery—empowering clients to make informed decisions with confidence and integrity.

Chemical Lab with chemicals and equipments
Chemical Lab with chemicals and equipments

Reliability

Trusted for timely, discreet appraisals that keep transactions moving without delay. Dependable service ensures confidence at every stage of the process.

Quality

Expert analysis using advanced gemological techniques delivers precise, fair valuations. Every detail is handled with care to meet the highest international standards.

Chemical Lab with chemicals and equipments

Reliability

Trusted for timely, discreet appraisals that keep transactions moving without delay. Dependable service ensures confidence at every stage of the process.

Quality

Expert analysis using advanced gemological techniques delivers precise, fair valuations. Every detail is handled with care to meet the highest international standards.

Services we provide

High-Value Gemstone Appraisals

Expert evaluations of loose diamonds, coloured stones, and rare gems with advanced gemological analysis.

Luxury Jewelry Appraisals

Auction & Private Sale Valuations

GIA Certification

Services we provide

High-Value Gemstone Appraisals

Luxury Jewelry Appraisals

Certified appraisals for exquisite fine jewelry, including bespoke and vintage pieces.

Auction & Private Sale Valuations

GIA Certification

Services we provide

High-Value Gemstone Appraisals

Expert evaluations of loose diamonds, coloured stones, and rare gems with advanced gemological analysis.

Luxury Jewelry Appraisals

Auction & Private Sale Valuations

GIA Certification

The Difference We Make

Precision You Can Trust, Expertise You Can Count On

We go beyond appraisal—delivering clarity, confidence, and global credibility with every valuation.

The Difference We Make

Precision You Can Trust, Expertise You Can Count On

We go beyond appraisal—delivering clarity, confidence, and global credibility with every valuation.

Different colo chemicals in tube
Different colo chemicals in tube

8500+
Tested Stones

8,500 + lab-tested stones authenticated using advanced gemological equipment

Different colo chemicals in tube

8500+
Tested Stones

8,500 + lab-tested stones authenticated using advanced gemological equipment

Thumbs up from lab technician for successful chemical delivery

GIA
Certification

We handle GIA and international lab certifications with secure, insured transport—personally managed by Steven—to ensure your gems are analysed with the highest standards and advanced equipment.

Thumbs up from lab technician for successful chemical delivery

GIA
Certification

We handle GIA and international lab certifications with secure, insured transport—personally managed by Steven—to ensure your gems are analysed with the highest standards and advanced equipment.

Thumbs up from lab technician for successful chemical delivery

GIA
Certification

We handle GIA and international lab certifications with secure, insured transport—personally managed by Steven—to ensure your gems are analysed with the highest standards and advanced equipment.

150+ legacy collections appraised for multi-generational family offices and estates

150+ legacy collections

Lab technician kept a small chemical bottle in a stand
Lab technician kept a small chemical bottle in a stand

150+ legacy collections appraised for multi-generational family offices and estates

150+ legacy collections

Lab technician kept a small chemical bottle in a stand

Achievements at a glance

Our Edge

in Excellence

Our Edge

in Excellence

With decades of specialised experience, deep gemological expertise, and a global network of trusted partners, we deliver unmatched precision in every appraisal. Our commitment to discretion, accuracy, and client-focused service sets us apart—ensuring each valuation meets the highest standards of excellence in the industry.

With decades of specialised experience, deep gemological expertise, and a global network of trusted partners, we deliver unmatched precision in every appraisal. Our commitment to discretion, accuracy, and client-focused service sets us apart—ensuring each valuation meets the highest standards of excellence in the industry.

Achievements at a glance

Our Edge in Excellence

With decades of specialised experience, deep gemological expertise, and a global network of trusted partners, we deliver unmatched precision in every appraisal. Our commitment to discretion, accuracy, and client-focused service sets us apart—ensuring each valuation meets the highest standards of excellence in the industry.

850+

Customers that

Trust Us

$30B

$30 Billion

Appraised Assets

25+

Years

EXperience

850+

Customers that

Trust Us

$30B

$30 Billion

Appraised Assets

25+

Years

EXperience

Chemicals arranged in a rack

Key solutions

Protecting and Maximising the Value of Your Jewelry Assets

Risk Reduction
for High Value
Transactions

Minimising financial and legal exposure through expert verification of authenticity and market value.

Valuations for
Insurance,
Finance, and
Estate
Management


We specialise in precise valuations for insurance purposes, financial advisors, family offices, trustees, and private banks—offering discreet, expert support tailored to high-value gem and jewellery assets.

Market Insight for
Rare & Unique
Pieces

Offering strategic guidance based on global market trends to help clients understand the true worth of uncommon gems and jewelry.

Chemicals arranged in a rack

Key solutions

Protecting and Maximising the Value of Your Jewelry Assets

Risk Reduction
for High Value
Transactions

Minimising financial and legal exposure through expert verification of authenticity and market value.

Valuations for
Insurance,
Finance, and
Estate
Management


We specialise in precise valuations for insurance purposes, financial advisors, family offices, trustees, and private banks—offering discreet, expert support tailored to high-value gem and jewellery assets.

Market Insight for
Rare & Unique
Pieces

Offering strategic guidance based on global market trends to help clients understand the true worth of uncommon gems and jewelry.

Chemicals arranged in a rack

Key solutions

Protecting and Maximising the Value of Your Jewelry Assets

Risk Reduction
for High Value
Transactions

Minimising financial and legal exposure through expert verification of authenticity and market value.

Valuations for
Insurance,
Finance, and
Estate
Management


We specialise in precise valuations for insurance purposes, financial advisors, family offices, trustees, and private banks—offering discreet, expert support tailored to high-value gem and jewellery assets.

Market Insight for
Rare & Unique
Pieces

Offering strategic guidance based on global market trends to help clients understand the true worth of uncommon gems and jewelry.

4 Simple Steps

Effortless Appraisals, Unwavering Trust

01.

Contact Us

Reach out to schedule your appraisal—by phone, email, or our online form.

01.

Contact Us

Reach out to schedule your appraisal—by phone, email, or our online form.

02.

Secure Consultation

We discuss your needs and arrange a convenient time for an in-person or remote evaluation.

02.

Secure Consultation

We discuss your needs and arrange a convenient time for an in-person or remote evaluation.

03.

Professional Appraisal

Our expert conducts a detailed examination using advanced gemological tools and techniques.

03.

Professional Appraisal

Our expert conducts a detailed examination using advanced gemological tools and techniques.

04.

Receive Your Report

You get a comprehensive, certified appraisal report delivered securely—ready for insurance, sale, or estate planning.

04.

Receive Your Report

You get a comprehensive, certified appraisal report delivered securely—ready for insurance, sale, or estate planning.

Partner with Experts Who Value Precision

4 Simple Steps

Effortless Appraisals, Unwavering Trust

01.

Contact Us

Reach out to schedule your appraisal—by phone, email, or our online form.

02.

Secure Consultation

We discuss your needs and arrange a convenient time for an in-person or remote evaluation.

03.

Professional Appraisal

Our expert conducts a detailed examination using advanced gemological tools and techniques.

04.

Receive Your Report

You get a comprehensive, certified appraisal report delivered securely—ready for insurance, sale, or estate planning.

Partner with Experts Who Value Precision

Benefits You’ll Gain

Unlock Confidence and Clarity with Every Appraisal

Experience expert valuations that protect your investments, simplify decisions, and enhance your peace of mind.

Benefits You’ll Gain

Unlock Confidence and Clarity with Every Appraisal

Experience expert valuations that protect your investments, simplify decisions, and enhance your peace of mind.

Fast
Delivery

We provide fast, reliable appraisal reports—delivered promptly without compromising accuracy or detail.

Fast
Delivery

We provide fast, reliable appraisal reports—delivered promptly without compromising accuracy or detail.

Experience reliable expertise that keeps your valuable collections accurately valued and confidently protected, every step of the way.

A woman in a straw hat stands in the grass
A woman in a straw hat stands in the grass
A woman in a straw hat stands in the grass

Bespoke
Valuations


Asian woman enjoying sun outside
Asian woman enjoying sun outside
Asian woman enjoying sun outside
Camera zoom lens
Camera zoom lens
Camera zoom lens

Guaranteed consistency for seamless transactions and peace of mind.

Guaranteed consistency for seamless transactions and peace of mind.

Preferred Experts FOR

Real Stories, Real Success

Authentic Feedback from Our Valued Clients

Real Stories, Real Success

Authentic Feedback from Our Valued Clients

  • “Steven’s understanding of historical gemstones is exceptional. He identified, valued, and documented several 19th-century pieces in our collection with incredible accuracy—linking them to their original provenance and securing international certification.”

    4.7/5

  • “Steven brings five generations of excellence to the table. His valuations are always detailed, reliable, and internationally recognised—an essential partner for insurance reporting.”

    5/5

  • “Steven personally oversaw the secure transport and certification of our high-value diamond collection. The process was seamless and handled with absolute professionalism.”

    4.9/5

  • “As a family office, we’ve worked with many appraisers—but Steven stands out for his integrity, accuracy, and deep generational expertise. He’s now our go-to for all gem and jewellery valuations.”

    4.8/5

  • “Steven’s depth of knowledge is unmatched. He helped us value a rare heirloom sapphire with such precision that even our private banker was impressed. Completely trustworthy and discreet.”

    4.5/5

  • “Steven’s understanding of historical gemstones is exceptional. He identified, valued, and documented several 19th-century pieces in our collection with incredible accuracy—linking them to their original provenance and securing international certification.”

    4.7/5

  • “Steven brings five generations of excellence to the table. His valuations are always detailed, reliable, and internationally recognised—an essential partner for insurance reporting.”

    5/5

  • “Steven personally oversaw the secure transport and certification of our high-value diamond collection. The process was seamless and handled with absolute professionalism.”

    4.9/5

  • “As a family office, we’ve worked with many appraisers—but Steven stands out for his integrity, accuracy, and deep generational expertise. He’s now our go-to for all gem and jewellery valuations.”

    4.8/5

  • “Steven’s depth of knowledge is unmatched. He helped us value a rare heirloom sapphire with such precision that even our private banker was impressed. Completely trustworthy and discreet.”

    4.5/5

“Steven’s depth of knowledge is unmatched. He helped us value a rare heirloom sapphire with such precision that even our private banker was impressed. Completely trustworthy and discreet.”

4.5/5

“As a family office, we’ve worked with many appraisers—but Steven stands out for his integrity, accuracy, and deep generational expertise. He’s now our go-to for all gem and jewellery valuations.”

4.8/5

“Steven personally oversaw the secure transport and certification of our high-value diamond collection. The process was seamless and handled with absolute professionalism.”

4.9/5

“Steven brings five generations of excellence to the table. His valuations are always detailed, reliable, and internationally recognised—an essential partner for insurance reporting.”

5/5

“Steven’s understanding of historical gemstones is exceptional. He identified, valued, and documented several 19th-century pieces in our collection with incredible accuracy—linking them to their original provenance and securing international certification.”

4.7/5

FAQ

Have Questions?
We Have Answers

Have Questions?
We Have Answers

Find quick answers to the most common questions about our jewelry and gemstone appraisals.

FAQ

Have Questions?
We Have Answers

Find quick answers to the most common questions about our jewelry and gemstone appraisals.

What types of items can you appraise?

We appraise a wide range of fine jewelry, loose gemstones, diamonds, coloured stones, and rare or bespoke pieces.

What types of items can you appraise?

We appraise a wide range of fine jewelry, loose gemstones, diamonds, coloured stones, and rare or bespoke pieces.

How long does the appraisal process take?

How long does the appraisal process take?

Is my appraisal confidential?

Is my appraisal confidential?

Can appraisals be done remotely or only in person?

Can appraisals be done remotely or only in person?

How is the appraisal report used?

How is the appraisal report used?

What types of items can you appraise?

We appraise a wide range of fine jewelry, loose gemstones, diamonds, coloured stones, and rare or bespoke pieces.

How long does the appraisal process take?

Is my appraisal confidential?

Can appraisals be done remotely or only in person?

How is the appraisal report used?

Contact Us

Have Questions?
We Have Answers

Get in touch today for expert appraisals, personalised service, and trusted results. Let’s protect your valuable assets together.