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Asscher|Lab Grown|IGI

1.00ct D SI1 Asscher Lab Grown Diamond

ID • D/SI1 • IGI LG524247380

Shape and cutting style on the report: Square emerald cut

Certificate IGI LG524247380

Diamond specifications and retailer prices

From £117 GBP
As of November 3, 2026
Save £490 GBP (81%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £608 GBP at MOH London · As of November 2, 2026
View at MOH London

About this 1ct lab-grown asscher diamond

This 1ct lab-grown asscher sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG524247380 or 524247380. Listed at 17 retailers as of November 2, 2026, with prices from £117 to £608, a £490 spread on the same certified stone. MOH London lists it at £608. 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
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle21.5°
Pavilion angle44.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG524247380
Dimensions5.50 × 5.48 × 3.53 mm
L/W Ratio1.00
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
5.50 mm5.48 mm1.00 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG524247380
Side View
Table 64.5%Crown 21.5°Girdle: MediumPavilion 44.2°Culet: NoneDepth 64.4%

Caratlytics Score

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

Price History

Last verified: Nov 3
Current: £608 GBP|Low: £117 GBP|High: £615 GBP|Avg: £292 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 3, 2026
Retailer 4£117 GBP
Retailer 3£130 GBP
Retailer 7£130 GBP
Retailer 12£172 GBP
Retailer 2£222 GBP
Retailer 9£227 GBP
Retailer 10£247 GBP
Retailer 5£312 GBP
Retailer 6£334 GBP
Retailer 11£368 GBP
Retailer 8£418 GBP
Retailer 13£476 GBP
MOH London£608 GBP

41 data points across 13 retailers

17 retailers£117 GBP to £608 GBP

A
Cheapest Retailer
-
£117 GBP
Final sale: no returns
A
Retailer 2
-
£122 GBP
View
Retailer 3
-
£130 GBP
View
Price last confirmed 12 days ago
A
Retailer 4
-
£130 GBP
View
A
Retailer 5
-
£152 GBP
View
B+
Retailer 6
-
£172 GBP
View
A
Retailer 7
-
£222 GBP
View
A
Retailer 8
-
£227 GBP
View
A
Retailer 9
-
£247 GBP
View
B+
Retailer 10
-
£312 GBP
View
B+
Retailer 11
-
£334 GBP
View
B
Retailer 12
-
£360 GBP
View
B
Retailer 13
-
£368 GBP
View
B
Retailer 14
-
£418 GBP
View
B
Retailer 15
-
£476 GBP
View
B
Retailer 16
-
£507 GBP
View
Most Expensive
B
MOH London
LG524247380 · Nov 2
£608 GBP
View
16 more retailers have this diamond
Prices start from £117 GBPSave up to £490 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
£117 GBP