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Cushion|Lab Grown|IGI

1.53ct D IF Cushion Lab Grown Diamond

EX • D/IF • IGI LG764699670

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG764699670

Diamond specifications and retailer prices

From £310 GBP
As of November 4, 2026
Save £1,830 GBP (86%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £2,141 GBP at Brilliant Earth · As of November 4, 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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG764699670 or 764699670. Listed at 21 retailers as of November 4, 2026, with prices from £310 to £2,141, a £1,830 spread on the same certified stone. Brilliant Earth lists it at £2,141. 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
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.8°
Pavilion angle34.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG764699670
Dimensions6.60 × 6.28 × 4.17 mm
L/W Ratio1.05
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
6.60 mm6.28 mm1.53 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG764699670
Side View
Table 64.0%Crown 37.8°Girdle: STK-THKPavilion 34.3°Culet: NoneDepth 66.4%

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: £2,141 GBP|Low: £310 GBP|High: £3,007 GBP|Avg: £1,080 GBP|-28.8%
Brilliant Earth
Retailer 2
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Retailer 20
November 5, 2026
Retailer 12£310 GBP
Retailer 5£344 GBP
Retailer 20£407 GBP
Retailer 7£532 GBP
Retailer 17£544 GBP
Retailer 19£547 GBP
Retailer 16£593 GBP
Retailer 2£612 GBP
Retailer 6£784 GBP
Retailer 14£802 GBP
Retailer 15£869 GBP
Retailer 11£1,135 GBP
Retailer 9£1,289 GBP
Retailer 3£1,292 GBP
Retailer 8£1,296 GBP
Retailer 10£1,332 GBP
Retailer 13£1,341 GBP
Retailer 18£1,816 GBP
Retailer 4£1,948 GBP
Brilliant Earth£2,141 GBP

35 data points across 20 retailers

21 retailers£310 GBP to £2,141 GBP

A
Cheapest Retailer
-
£310 GBP
Final sale: no returns
Retailer 2
-
£344 GBP
View
Price last confirmed 11 days ago
A
Retailer 3
-
£407 GBP
View
A
Retailer 4
-
£532 GBP
View
A
Retailer 5
-
£544 GBP
View
A
Retailer 6
-
£547 GBP
View
A
Retailer 7
-
£593 GBP
View
A
Retailer 8
-
£612 GBP
View
A
Retailer 9
-
£784 GBP
View
A
Retailer 10
-
£802 GBP
View
A
Retailer 11
-
£869 GBP
View
B+
Retailer 12
-
£1,135 GBP
View
B+
Retailer 13
-
£1,200 GBP
View
B+
Retailer 14
-
£1,289 GBP
View
B+
Retailer 15
-
£1,292 GBP
View
B+
Retailer 16
-
£1,296 GBP
View
B+
Retailer 17
-
£1,332 GBP
View
B+
Retailer 18
-
£1,341 GBP
View
B
Retailer 19
-
£1,816 GBP
View
Retailer 20
-
£1,948 GBP
View
Price last confirmed 17 days ago
Most Expensive
B
Brilliant Earth
17837298A · Nov 4
£2,141 GBP
$2,890 USD
View
20 more retailers have this diamond
Prices start from £310 GBPSave up to £1,830 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
£310 GBP