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Radiant|Lab Grown|IGI

1.53ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG743523426

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG743523426

Diamond specifications and retailer prices

From £242 GBP
$324 USD
As of October 30, 2026
Save £1,680 GBP (87%) vs most expensive(unlock to see where)
30 retailers carry this diamond
Most expensive: £1,922 GBP at Rare Carat · As of October 28, 2026
View at Rare Carat

About this 1.53ct lab-grown radiant diamond

This 1.53ct lab-grown radiant 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 LG743523426 or 743523426. Listed at 30 retailers as of October 28, 2026, with prices from £242 to £1,922, a £1,680 spread on the same certified stone. Rare Carat lists it at £1,922. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.7°
Pavilion angle33.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG743523426
Dimensions8.52 × 5.72 × 3.69 mm
L/W Ratio1.49
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
8.52 mm5.72 mm1.53 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG743523426
Side View
Table 63.0%Crown 41.7°Girdle: MED-STKPavilion 33.4°Culet: NoneDepth 64.5%

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 30
Current: £1,922 GBP|Low: £242 GBP|High: £1,955 GBP|Avg: £793 GBP|-1.7%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
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Retailer 19
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Retailer 21
October 31, 2026
Retailer 3£242 GBP
Retailer 13£271 GBP
Retailer 10£344 GBP
Retailer 21£424 GBP
Retailer 18£425 GBP
Retailer 2£487 GBP
Retailer 8£493 GBP
Retailer 17£516 GBP
Retailer 15£536 GBP
Retailer 9£678 GBP
Retailer 16£700 GBP
Retailer 5£778 GBP
Retailer 20£880 GBP
Retailer 11£998 GBP
Retailer 14£1,002 GBP
Retailer 12£1,007 GBP
Retailer 7£1,154 GBP
Retailer 6£1,187 GBP
Retailer 19£1,205 GBP
Retailer 4£1,243 GBP
Rare Carat£1,922 GBP

38 data points across 21 retailers

30 retailers£242 GBP to £1,922 GBP

A
Cheapest Retailer
-
£242 GBP
$324 USD
Retailer 2
-
£242 GBP
$324 USD
View
Price last confirmed 23 days ago
Retailer 3
-
£257 GBP
$345 USD
View
Price last confirmed 31 days ago
A
Retailer 4
-
£271 GBP
$363 USD
View
Final sale: no returns
Retailer 5
-
£299 GBP
$400 USD
View
Price last confirmed 34 days ago
Retailer 6
-
£300 GBP
$402 USD
View
Price last confirmed 28 days ago
Retailer 7
-
£315 GBP
$422 USD
View
Price last confirmed 34 days ago
Retailer 8
-
£315 GBP
$422 USD
View
Price last confirmed 31 days ago
A
Retailer 9
-
£344 GBP
HK$3,600 HKD
View
A
Retailer 10
-
£424 GBP
$568 USD
View
A
Retailer 11
-
£425 GBP
$570 USD
View
A
Retailer 12
-
£487 GBP
€622 EUR
View
A
Retailer 13
-
£493 GBP
$660 USD
View
A
Retailer 14
-
£516 GBP
ZAR 11,165 ZAR
View
A
Retailer 15
-
£536 GBP
View
A
Retailer 16
-
£678 GBP
$909 USD
View
A
Retailer 17
-
£700 GBP
A$1,442 AUD
View
A
Retailer 18
-
£778 GBP
$1,042 USD
View
B+
Retailer 19
-
£880 GBP
$1,179 USD
View
Retailer 20
-
£965 GBP
$1,293 USD
View
Price last confirmed 21 days ago
B+
Retailer 21
-
£965 GBP
$1,293 USD
View
B+
Retailer 22
-
£998 GBP
$1,338 USD
View
B+
Retailer 23
-
£1,002 GBP
$1,342 USD
View
B+
Retailer 24
-
£1,007 GBP
SGD 1,823 SGD
View
Retailer 25
-
£1,026 GBP
$1,375 USD
View
Price last confirmed 31 days ago
B+
Retailer 26
-
£1,154 GBP
$1,546 USD
View
B+
Retailer 27
-
£1,187 GBP
$1,590 USD
View
B+
Retailer 28
-
£1,205 GBP
View
Retailer 29
-
£1,243 GBP
A$2,563 AUD
View
Price last confirmed 23 days ago
Most Expensive
B
Rare Carat
3220-77 · Oct 28
£1,922 GBP
$2,575 USD
View
29 more retailers have this diamond
Prices start from £242 GBPSave up to £1,680 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 Radiant
£242 GBP