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Asscher|Lab Grown|IGI

1.00ct E SI1 Asscher Lab Grown Diamond

ID • E/SI1 • IGI LG603355952

Shape and cutting style on the report: Square emerald cut

Certificate IGI LG603355952

Diamond specifications and retailer prices

From €519 EUR
£457 GBP
As of October 29, 2026
Save €18 EUR (3%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: €537 EUR at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1ct lab-grown asscher diamond

This 1ct lab-grown asscher sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG603355952 or 603355952. Listed at 2 retailers as of October 29, 2026, with a relatively tight 3% spread, which is unusual at this carat range and suggests competitive pricing across the listings. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.00
Carat
E
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.8°
Pavilion angle38.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG603355952
Dimensions5.61 × 5.48 × 3.57 mm
L/W Ratio1.02
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
5.61 mm5.48 mm1.00 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG603355952
Side View
Table 67.0%Crown 37.8°Girdle: MediumPavilion 38.5°Culet: NoneDepth 65.1%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 29
Current: €537 EUR|Low: €255 EUR|High: €859 EUR|Avg: €422 EUR|-15.5%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
May 15, 2026
Retailer 3€278 EUR
Retailer 2€302 EUR
Retailer 6€402 EUR
Retailer 4€408 EUR
Retailer 5€439 EUR
Retailer 7€473 EUR
Brilliant Earth€537 EUR

65 data points across 7 retailers

2 retailers€519 EUR to €537 EUR

B
Cheapest Retailer
-
€519 EUR
£457 GBP
Most Expensive
B
Brilliant Earth
14233982A · Oct 30
€537 EUR
$600 USD
View
1 more retailer has this diamond
Prices start from €519 EURSave up to €18 EUR

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

B
1.00ct Asscher
€519 EUR