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Cushion|Lab Grown|IGI

1.54ct E VVS1 Cushion Lab Grown Diamond

ID • E/VVS1 • IGI LG818644815

Shape and cutting style on the report: Antique cushion cut

Certificate IGI LG818644815

Diamond specifications and retailer prices

From £353 GBP
$470 USD
As of October 29, 2026
Save £1,640 GBP (82%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £1,993 GBP at Queensmith · As of October 27, 2026
View at Queensmith

About this 1.54ct lab-grown cushion diamond

This 1.54ct lab-grown cushion sits in the one-and-a-half to two carat band, graded E colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG818644815 or 818644815. Listed at 18 retailers as of October 27, 2026, with prices from £353 to £1,993, a £1,640 spread on the same certified stone. Queensmith lists it at £1,993. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.54
Carat
E
Colour
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.4°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818644815
Dimensions8.62 × 5.71 × 3.74 mm
L/W Ratio1.51
Girdle conditionFaceted
Culet sizeLarge
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
8.62 mm5.71 mm1.54 ctE / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818644815
Side View
Table 57.0%Crown 42.4°Girdle: MediumPavilion 40.6°Culet: LargeDepth 65.5%

Caratlytics Score

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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 29
Current: £1,993 GBP|Low: £353 GBP|High: £1,993 GBP|Avg: £1,017 GBP
Queensmith
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
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Retailer 10
Retailer 11
Retailer 12
Retailer 13
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Retailer 18
October 29, 2026
Retailer 15£353 GBP
Retailer 3£395 GBP
Retailer 10£415 GBP
Retailer 7£437 GBP
Retailer 9£459 GBP
Retailer 18£540 GBP
Retailer 11£544 GBP
Retailer 16£587 GBP
Retailer 2£723 GBP
Retailer 4£1,026 GBP
Retailer 13£1,176 GBP
Retailer 8£1,389 GBP
Retailer 14£1,406 GBP
Retailer 6£1,428 GBP
Retailer 17£1,543 GBP
Retailer 12£1,609 GBP
Retailer 5£1,637 GBP
Queensmith£1,993 GBP

44 data points across 18 retailers

18 retailers£353 GBP to £1,993 GBP

A
Cheapest Retailer
-
£353 GBP
$470 USD
A
Retailer 2
-
£395 GBP
$526 USD
View
Retailer 3
-
£415 GBP
$552 USD
View
Price last confirmed 36 days ago
Final sale: no returns
A
Retailer 4
-
£437 GBP
$582 USD
View
Retailer 5
-
£459 GBP
$611 USD
View
Price last confirmed 13 days ago
A
Retailer 6
-
£540 GBP
$719 USD
View
A
Retailer 7
-
£544 GBP
$725 USD
View
B+
Retailer 8
-
£587 GBP
$782 USD
View
B+
Retailer 9
-
£723 GBP
View
Retailer 10
-
£1,026 GBP
A$2,102 AUD
View
Price last confirmed 9 days ago
B
Retailer 11
-
£1,176 GBP
$1,566 USD
View
B
Retailer 12
-
£1,389 GBP
SGD 2,499 SGD
View
B
Retailer 13
-
£1,406 GBP
$1,872 USD
View
B
Retailer 14
-
£1,428 GBP
$1,902 USD
View
B
Retailer 15
-
£1,543 GBP
$2,054 USD
View
B
Retailer 16
-
£1,609 GBP
View
B
Retailer 17
-
£1,637 GBP
$2,180 USD
View
Most Expensive
B
Queensmith
LG818644815 · Oct 27
£1,993 GBP
View
17 more retailers have this diamond
Prices start from £353 GBPSave up to £1,640 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
1.54ct Cushion
£353 GBP