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Cushion|Lab Grown|IGI

1.55ct E VS1 Cushion Lab Grown Diamond

EX • E/VS1 • IGI LG544271793

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG544271793

Diamond specifications and retailer prices

From £189 GBP
$252 USD
As of October 28, 2026
Save £767 GBP (80%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £1,472 GBP at Brilliant Earth · As of October 18, 2026
View at Brilliant Earth

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 VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG544271793 or 544271793. Listed at 17 retailers as of October 28, 2026, with a 405% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.55
Carat
E
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.6°
Pavilion angle30.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG544271793
Dimensions6.00 × 6.00 × 7.52 mm
L/W Ratio1.00
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
6.00 mm6.00 mm1.55 ctE / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG544271793
Side View
Table 64.0%Crown 37.6°Girdle: STK-VTKPavilion 30.2°Culet: NoneDepth 65.5%

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 28
Current: £1,472 GBP|Low: £189 GBP|High: £1,472 GBP|Avg: £462 GBP
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 29, 2026
Retailer 4£189 GBP
Retailer 13£210 GBP
Retailer 8£282 GBP
Retailer 6£339 GBP
Retailer 9£360 GBP
Retailer 2£390 GBP
Retailer 5£430 GBP
Retailer 3£457 GBP
Retailer 10£490 GBP
Retailer 12£545 GBP
Retailer 7£725 GBP
Retailer 11£841 GBP
Brilliant Earth£1,472 GBP

44 data points across 13 retailers

17 retailers£189 GBP to £957 GBP

A
Cheapest Retailer
-
£189 GBP
$252 USD
Final sale: no returns
A
Retailer 2
-
£210 GBP
$279 USD
View
B+
Retailer 3
-
£282 GBP
$375 USD
View
A
Retailer 4
-
£339 GBP
€430 EUR
View
A
Retailer 5
-
£360 GBP
ZAR 7,748 ZAR
View
A
Retailer 6
-
£390 GBP
View
A
Retailer 7
-
£402 GBP
$535 USD
View
A
Retailer 8
-
£430 GBP
$573 USD
View
B+
Retailer 9
-
£457 GBP
$609 USD
View
B+
Retailer 10
-
£490 GBP
A$1,003 AUD
View
B+
Retailer 11
-
£545 GBP
$726 USD
View
B+
Retailer 12
-
£635 GBP
$846 USD
View
B+
Retailer 13
-
£713 GBP
$950 USD
View
B+
Retailer 14
-
£725 GBP
A$1,485 AUD
View
B
Retailer 15
-
£841 GBP
View
B
Retailer 16
-
£957 GBP
$1,274 USD
View
Most Expensive
Brilliant Earth
16038056A · Oct 18
£1,472 GBP
$1,960 USD
View
Price last confirmed 11 days ago
16 more retailers have this diamond
Prices start from £189 GBPSave up to £767 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
£189 GBP