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Cushion|Lab Grown|IGI

1.53ct F VVS1 Cushion Lab Grown Diamond

ID • F/VVS1 • IGI LG818655986

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG818655986

Diamond specifications and retailer prices

From £256 GBP
As of November 4, 2026
Save £626 GBP (71%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £1,007 GBP at Rare Carat · As of September 30, 2026
View at Rare Carat

About this 1.53ct lab-grown cushion diamond

This 1.53ct lab-grown cushion sits in the one-and-a-half to two carat band, graded F colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG818655986 or 818655986. Listed at 14 retailers as of November 4, 2026, with a 244% 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

1.53
Carat
F
Colour
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.8°
Pavilion angle38.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818655986
Dimensions6.76 × 6.63 × 4.34 mm
L/W Ratio1.02
Girdle conditionFaceted
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
6.76 mm6.63 mm1.53 ctF / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818655986
Side View
Table 60.0%Crown 35.8°Girdle: MED-THKPavilion 38.1°Culet: NoneDepth 65.5%

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: Nov 4
Current: £406 GBP|Low: £256 GBP|High: £1,019 GBP|Avg: £572 GBP|-6.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 5, 2026
Retailer 4£256 GBP
Retailer 9£306 GBP
Retailer 7£363 GBP
Retailer 6£374 GBP
Retailer 1£406 GBP
Retailer 12£469 GBP
Retailer 3£475 GBP
Retailer 11£701 GBP
Retailer 2£736 GBP
Retailer 8£850 GBP
Retailer 5£867 GBP
Retailer 10£883 GBP

44 data points across 12 retailers

14 retailers£256 GBP to £883 GBP

A
Cheapest Retailer
-
£256 GBP
B+
Retailer 2
-
£306 GBP
View
A
Retailer 3
-
£363 GBP
View
A
Retailer 4
-
£374 GBP
View
A
Retailer 5
-
£406 GBP
View
A
Retailer 6
-
£469 GBP
View
A
Retailer 7
-
£475 GBP
View
B+
Retailer 8
-
£701 GBP
View
B+
Retailer 9
-
£736 GBP
View
Retailer 10
-
£850 GBP
View
Price last confirmed 8 days ago
B
Retailer 11
-
£851 GBP
View
B+
Retailer 12
-
£867 GBP
View
B
Retailer 13
-
£883 GBP
View
Most Expensive
Rare Carat
8485-U · Sep 30
£1,007 GBP
$1,355 USD
View
Price last confirmed 36 days ago
13 more retailers have this diamond
Prices start from £256 GBPSave up to £626 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
1.53ct Cushion
£256 GBP