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Cushion|Lab Grown|IGI

1.55ct E VS2 Cushion Lab Grown Diamond

VG • E/VS2 • IGI LG519227854

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG519227854

Diamond specifications and retailer prices

From £191 GBP
$256 USD
As of October 30, 2026
Save £668 GBP (78%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £859 GBP at Brilliance · As of October 30, 2026
View at Brilliance

About this 1.55ct lab-grown cushion diamond

This 1.55ct lab-grown cushion sits in the one-and-a-half to two carat band, graded E colour (colourless) and VS2 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG519227854 or 519227854. Listed at 16 retailers as of October 30, 2026, with prices from £191 to £859, a £668 spread on the same certified stone. Brilliance lists it at £859. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.55
Carat
E
Colour
VS2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.7°
Pavilion angle34.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG519227854
Dimensions6.84 × 6.59 × 4.29 mm
L/W Ratio1.04
Girdle conditionFaceted
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
6.84 mm6.59 mm1.55 ctE / VS2
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG519227854
Side View
Table 66.0%Crown 35.7°Girdle: MED-VTKPavilion 34.8°Culet: NoneDepth 65.1%

Caratlytics Score

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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: Oct 30
Current: £751 GBP|Low: £191 GBP|High: £993 GBP|Avg: £516 GBP|-12.6%
Brilliance
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
October 30, 2026
Retailer 6£191 GBP
Retailer 9£209 GBP
Retailer 4£229 GBP
Retailer 8£352 GBP
Retailer 14£356 GBP
Retailer 13£387 GBP
Retailer 7£390 GBP
Retailer 12£399 GBP
Retailer 3£677 GBP
Brilliance£751 GBP
Retailer 5£758 GBP
Retailer 11£819 GBP
Retailer 10£840 GBP
Retailer 2£851 GBP

44 data points across 14 retailers

16 retailers£191 GBP to £859 GBP

A
Cheapest Retailer
-
£191 GBP
$256 USD
Final sale: no returns
A
Retailer 2
-
£209 GBP
$280 USD
View
A
Retailer 3
-
£229 GBP
HK$2,400 HKD
View
A
Retailer 4
-
£352 GBP
€449 EUR
View
A
Retailer 5
-
£356 GBP
$477 USD
View
A
Retailer 6
-
£387 GBP
$518 USD
View
A
Retailer 7
-
£390 GBP
View
A
Retailer 8
-
£399 GBP
$535 USD
View
B+
Retailer 9
-
£677 GBP
SGD 1,226 SGD
View
Retailer 10
-
£718 GBP
$962 USD
View
Price last confirmed 12 days ago
B
Retailer 11
-
£751 GBP
$1,006 USD
View
Retailer 12
-
£758 GBP
$1,015 USD
View
Price last confirmed 9 days ago
B
Retailer 13
-
£819 GBP
View
B
Retailer 14
-
£840 GBP
View
B
Retailer 15
-
£851 GBP
$1,140 USD
View
Most Expensive
B
Brilliance
D22592467 · Oct 30
£859 GBP
$1,151 USD
View
15 more retailers have this diamond
Prices start from £191 GBPSave up to £668 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
1.55ct Cushion
£191 GBP