Every Asscher moissanite ships with a GRA certificate and a laser number on the girdle. The certificate proves the grade on paper; the number lookup proves the certificate itself is real. This is the step that catches forged or reused papers, and it takes about a minute once you know where to look. It matters more on a specialty stone like an Asscher than on a round, because the customer who buys an Asscher is buying the certificate along with the vintage look.
The lookup sequence
- Find the girdle number under a 10x loupe, held at a glancing angle. It is usually on the widest part of the girdle.
- Write the number down exactly, including any prefix or suffix.
- Enter the number on the GRA certificate lookup page. The record returns the stone's shape, dimensions, color, clarity and report date.
- Compare the returned shape and dimensions to the stone in your hand. An Asscher record on a stone that looks like a radiant is a mismatch.
- Confirm the report date makes sense. A very old report on a stone that looks new is worth questioning.
What a valid record shows
A genuine lookup returns a consistent record: the shape, the dimensions, the color grade, the clarity grade and a report date that matches the stone's apparent age. For an Asscher, the dimensions should be near-square, around 6x6 to 9x9, and the shape field should read asscher or square step cut. The record should not return a different carat weight, because moissanite reports list the carat equivalent against the measured mm.
| Detail | Valid record | Discrepancy to question |
|---|---|---|
| Shape | asscher / square step | reads emerald or cushion |
| Dimensions | within 0.02 mm of caliper | more than 0.10 mm off |
| Color grade | D to F | returns a lower grade |
| Report date | matches stone age | much older or newer |
Common discrepancies
Most mismatches are honest sorting errors rather than forgeries. A stone measured 6.1mm when the report says 6.0mm is a loose sort. A girdle number that is faint because it was polished is a condition issue. The ones to escalate are a lookup that returns a different shape entirely, or a number that does not resolve at all. Send those back to the supplier with a photo of the girdle and the lookup result, and expect a replacement or an explanation.
Why it matters on an Asscher
An Asscher is a specialty purchase, and the customer paying a premium for the vintage cut expects the paper to be right. A forged or mismatched certificate on a $150 stone is a small problem; on a custom Asscher at $300, it is a relationship problem. Build the one-minute lookup into your receiving routine and you will not have to explain a bad certificate to a customer who specifically asked for the paper.
When the lookup fails
A number that does not resolve is not automatically a fake. The GRA database occasionally lags a newly issued report by a few weeks, so a fresh certificate may not return on day one. If the number does not resolve, wait a week and try again before escalating. A number that returns a different shape, though, is a real problem. Send the girdle photo and the lookup result to the supplier and ask for an explanation. Most suppliers respond with a replacement stone within days; the ones who go quiet are the ones to stop ordering from.
Keeping the lookup record
Save the lookup result as a PDF or screenshot for every Asscher you sell, filed with the stone's certificate number. The customer who comes back two years later asking to verify their stone appreciates the record, and it protects you if a dispute ever arises. For a specialty purchase like an Asscher, that paperwork is part of the product. A customer who bought a $300 vintage-style stone expects the verification trail, and providing it builds the trust that produces the next custom order.
Explaining the check to the customer
When a customer asks how they know their Asscher is real, walk them through the lookup on your screen. It takes a minute and it builds trust that the paper alone does not. Most customers never ask, but the ones who do are exactly the ones who will refer friends, because they saw you verify rather than just hand over a certificate. Keep the lookup page bookmarked on the receiving computer so the check takes seconds, not a search.
The customer who watches you verify will tell others, which is the cheapest marketing a specialty line gets.
Trust built on verification outlasts trust built on a sales pitch.
For a specialty stone like an Asscher, that verification step is part of the service you sell, not a chore. Build it into the receiving routine and offer it to the customer at handover.
Stock Asschers with verifiable GRA numbers are in the loose stone catalog under Asscher Cut.