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Asscher|Lab Grown|IGI

1.00ct E SI1 Asscher Lab Grown Diamond

ID • E/SI1 • IGI LG587327342

Shape and cutting style on the report: Square emerald cut

Certificate IGI LG587327342

Diamond specifications and retailer prices

From £162 GBP
$217 USD
As of October 30, 2026
Save £715 GBP (82%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £877 GBP at Reve Diamonds · As of October 30, 2026
View at Reve Diamonds

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 LG587327342 or 587327342. Listed at 14 retailers as of October 30, 2026, with prices from £162 to £877, a £715 spread on the same certified stone. Reve Diamonds lists it at £877. 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
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.3°
Pavilion angle41.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG587327342
Dimensions5.44 × 5.39 × 3.74 mm
L/W Ratio1.01
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
5.44 mm5.39 mm1.00 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG587327342
Side View
Table 62.0%Crown 37.3°Girdle: Slightly ThickPavilion 41.5°Culet: NoneDepth 69.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £327 GBP|Low: £162 GBP|High: £850 GBP|Avg: £385 GBP|+4.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 30, 2026
Retailer 3£162 GBP
Retailer 11£180 GBP
Retailer 4£306 GBP
Retailer 10£313 GBP
Retailer 1£327 GBP
Retailer 6£336 GBP
Retailer 5£341 GBP
Retailer 2£413 GBP
Retailer 8£460 GBP
Retailer 9£664 GBP
Retailer 7£845 GBP

40 data points across 11 retailers

14 retailers£162 GBP to £877 GBP

A
Cheapest Retailer
-
£162 GBP
$217 USD
Final sale: no returns
Retailer 2
-
£180 GBP
$241 USD
View
Price last confirmed 14 days ago
B+
Retailer 3
-
£306 GBP
€390 EUR
View
B+
Retailer 4
-
£313 GBP
$419 USD
View
B+
Retailer 5
-
£327 GBP
View
B+
Retailer 6
-
£336 GBP
$450 USD
View
B+
Retailer 7
-
£341 GBP
View
B+
Retailer 8
-
£413 GBP
$553 USD
View
B
Retailer 9
-
£460 GBP
$616 USD
View
B
Retailer 10
-
£465 GBP
View
B
Retailer 11
-
£618 GBP
$827 USD
View
B
Retailer 12
-
£664 GBP
$890 USD
View
B
Retailer 13
-
£845 GBP
View
Most Expensive
B
Reve Diamonds
2537EC6DB · Oct 30
£877 GBP
$1,175 USD
View
13 more retailers have this diamond
Prices start from £162 GBPSave up to £715 GBP

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.

A
1.00ct Asscher
£162 GBP