Historic Cuts · Modern Carbon · APPLY FOR TRADE ACCESS →

Historic Cuts · Modern Carbon · APPLY FOR TRADE ACCESS →

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LOS ANGELES · MUMBAI · SURAT

Every stone has a future. We create the ones worth telling. Yours begins now.

Lab grown diamonds cut by master cutters in our own Surat factory.
Old Mine, Old European, Antique, Rose, and Geometric Cuts.
Cut for the make, not the margin.
Small batch, IGI certified.

1985
Cutting Since
Surat
Our Own Factory
Created
The Lab Salt & Pepper Diamond
IGI
Certified
994
Stones In Stock
Every stone has a future Created the lab salt & pepper diamond Cutting since 1985 Our own factory in Surat Historic cuts, modern carbon Antique inspired cuts Champagne lab diamonds Small batch, cut to order IGI certified, every stone Laser inscribed Ships within 24 hours Trade accounts welcome Every stone has a future Created the lab salt & pepper diamond Cutting since 1985 Our own factory in Surat Historic cuts, modern carbon Antique inspired cuts Champagne lab diamonds Small batch, cut to order IGI certified, every stone Laser inscribed Ships within 24 hours Trade accounts welcome
7.53ct | F/VVS1 Antique Cushion Shape Old Mine Cut Lab Diamond (IGI)
7.53ct | F/VVS1 Antique Cushion Shape Old Mine Cut Lab Diamond (IGI) $9,415

A grading report tells you what a stone is. The make tells you how well it was cut. One of those you can see. It's a feeling in symmetry.

LITHOS · Master cut in Surat
The LITHOS Story

The part nobody grades. You'll know it in your hand.

LITHOS was founded in 2023 to do one thing: cut lab grown carbon to the standard of a master make. Our cutters are specialists in antique and technical geometric shapes, the perfect proportions that take time and attention to get right.

The make is what a certificate leaves out. Facet junctions that meet cleanly. Outlines that are true. Symmetry that holds through the crown and pavilion both. Girdles finished to spec rather than left heavy. None of it appears on a report, and all of it is the first thing you notice when the stone is in your hand. It has a presence.

We work in small batches and give each shape the hours it actually takes. Antique and Geometric cuts are the most demanding makes in the trade, and they are what we specialize in.

Historic cuts, modern carbon.

Featured stone

Straight lines forgive nothing.
That is exactly why we cut them.

A geometric cut is an exercise in patience and precision. Every edge is straight, every junction is visible, and every angle either meets perfectly or it does not. There is nowhere for an inclusion or bad cut to hide.

Kite, hexagon, shield, lozenge, octagon. Cut to spec in small batches by cutters who work in these shapes every week. Matched pairs and suites available on request, which is the part most of the trade cannot do at all.

4.21ct E / VS1
IGI Certified
EX Symmetry
Shop this stone →
Nothing behind it

You don't join this story. You begin it.

Every diamond outlasts everyone who owns it. That is the whole reason we give them.

A stone from the ground arrives carrying three billion years of that permanence behind it. Hands, continents, centuries, all of it already spent. Ours carries exactly the same permanence, pointed the other way. Every year of it still ahead. Not one of them spoken for.

It was cut this year, in Surat, by people who spend their days on shapes most factories will not attempt. It will be here long after the ring, long after the hands, long after most of what happens next.

The first hand it knows is yours.

Our natural house

Every stone has a story. This one hasn't started.

PRIJEMS is our natural diamond house.
Old Mine, Old European, Rose, Salt & Pepper and Champagne, found rather than made, each one carrying a history nobody wrote down. Same cuts, same standards, different carbon.

Visit PRIJEMS →
Prijems Natural carbon
Lithos Lab carbon
Cuts The same
Standards The same
Trade access

Cut for the make. Not the margin.

Exceptional cutting is the whole of it. Ideal proportions, perfect symmetry, and a finish that holds true across every facet, on shapes that are unforgiving of anything less. It is the difference between a stone that grades well and a stone that looks extraordinary in the hand.

We are not trying to mass produce. We cut for quality rather than scale, and a demanding shape gets the hours it takes. What you get for that is a stone your client turns over in the light and does not put down, and a cutting house that can make it to your spec, match it from the same batch, and cut a companion piece when the collection calls for one.

A cutter at the wheel in the LITHOS facility in Surat
Our factory, Surat
The make first

Ideal proportions and perfect symmetry are the spec we cut to. Carat comes second, which is not how most of this trade works.

Cut to your spec

Bring us a shape, a size and a proportion target. If it can be cut, we will quote it and cut it.

Pairs and suites

Matched from the same batch rather than assembled from inventory. The part most of the trade cannot do at all.

First look

New stones go out to trade accounts before they are listed.