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Cushion|Lab Grown|IGI

1.53ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG799646985

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG799646985

Diamond specifications and retailer prices

From £414 GBP
$556 USD
As of October 31, 2026
Save £2,209 GBP (84%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £2,623 GBP at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

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 D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG799646985 or 799646985. Listed at 19 retailers as of October 31, 2026, with prices from £414 to £2,623, a £2,209 spread on the same certified stone. Brilliant Earth lists it at £2,623. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.53
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle31.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG799646985
Dimensions8.40 × 5.69 × 3.81 mm
L/W Ratio1.48
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
8.40 mm5.69 mm1.53 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG799646985
Side View
Table 59.0%Crown 34°Girdle: MED-STKPavilion 31.6°Culet: NoneDepth 67.0%

Caratlytics Score

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A+
Exceptional
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 31
Current: £2,623 GBP|Low: £414 GBP|High: £3,644 GBP|Avg: £1,201 GBP|-28.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
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Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
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Retailer 17
Retailer 18
November 3, 2026
Retailer 4£414 GBP
Retailer 14£486 GBP
Retailer 10£516 GBP
Retailer 3£633 GBP
Retailer 15£687 GBP
Retailer 16£693 GBP
Retailer 5£715 GBP
Retailer 2£764 GBP
Retailer 13£792 GBP
Retailer 17£820 GBP
Retailer 12£1,081 GBP
Retailer 18£1,496 GBP
Retailer 9£1,499 GBP
Retailer 7£1,499 GBP
Retailer 6£1,657 GBP
Retailer 11£1,916 GBP
Retailer 8£2,023 GBP
Brilliant Earth£2,623 GBP

26 data points across 18 retailers

19 retailers£414 GBP to £2,623 GBP

A+
Cheapest Retailer
-
£414 GBP
$556 USD
Final sale: no returns
A
Retailer 2
-
£486 GBP
View
Retailer 3
-
£516 GBP
$693 USD
View
Price last confirmed 17 days ago
A
Retailer 4
-
£633 GBP
$849 USD
View
A
Retailer 5
-
£687 GBP
€878 EUR
View
A
Retailer 6
-
£693 GBP
$930 USD
View
A
Retailer 7
-
£715 GBP
$959 USD
View
A
Retailer 8
-
£764 GBP
View
A
Retailer 9
-
£792 GBP
ZAR 17,168 ZAR
View
A
Retailer 10
-
£820 GBP
$1,101 USD
View
A
Retailer 11
-
£1,081 GBP
$1,450 USD
View
B+
Retailer 12
-
£1,496 GBP
$2,007 USD
View
Retailer 13
-
£1,499 GBP
View
Price last confirmed 12 days ago
B+
Retailer 14
-
£1,499 GBP
SGD 2,719 SGD
View
B+
Retailer 15
-
£1,610 GBP
$2,160 USD
View
B+
Retailer 16
-
£1,657 GBP
$2,224 USD
View
B+
Retailer 17
-
£1,916 GBP
View
Retailer 18
-
£2,023 GBP
$2,715 USD
View
Price last confirmed 12 days ago
Most Expensive
B
Brilliant Earth
21421015A · Nov 2
£2,623 GBP
$3,520 USD
View
18 more retailers have this diamond
Prices start from £414 GBPSave up to £2,209 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
£414 GBP