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Radiant|Lab Grown|IGI

1.53ct D IF Radiant Lab Grown Diamond

EX • D/IF • IGI LG780636904

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

Certificate IGI LG780636904

Diamond specifications and retailer prices

From £242 GBP
$324 USD
As of October 30, 2026
Save £1,687 GBP (87%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: £1,929 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 LG780636904 or 780636904. Listed at 24 retailers as of October 28, 2026, with prices from £242 to £1,929, a £1,687 spread on the same certified stone. Rare Carat lists it at £1,929. 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 angle44°
Pavilion angle33.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG780636904
Dimensions8.19 × 5.77 × 3.74 mm
L/W Ratio1.42
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
8.19 mm5.77 mm1.53 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG780636904
Side View
Table 63.0%Crown 44°Girdle: Slightly ThickPavilion 33.7°Culet: NoneDepth 64.8%

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: £1,929 GBP|Low: £235 GBP|High: £1,955 GBP|Avg: £731 GBP|-1.3%
Rare Carat
Retailer 2
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Retailer 21
October 31, 2026
Retailer 3£242 GBP
Retailer 6£271 GBP
Retailer 19£281 GBP
Retailer 7£300 GBP
Retailer 21£300 GBP
Retailer 18£414 GBP
Retailer 2£486 GBP
Retailer 8£486 GBP
Retailer 5£493 GBP
Retailer 17£516 GBP
Retailer 13£536 GBP
Retailer 16£700 GBP
Retailer 20£880 GBP
Retailer 11£959 GBP
Retailer 4£965 GBP
Retailer 14£998 GBP
Retailer 12£1,052 GBP
Retailer 9£1,172 GBP
Retailer 10£1,187 GBP
Retailer 15£1,209 GBP
Rare Carat£1,929 GBP

38 data points across 21 retailers

24 retailers£242 GBP to £1,929 GBP

A
Cheapest Retailer
-
£242 GBP
$324 USD
A
Retailer 2
-
£271 GBP
$363 USD
View
Final sale: no returns
A
Retailer 3
-
£281 GBP
$376 USD
View
A
Retailer 4
-
£300 GBP
$402 USD
View
A
Retailer 5
-
£300 GBP
$402 USD
View
A
Retailer 6
-
£334 GBP
HK$3,500 HKD
View
A
Retailer 7
-
£414 GBP
$555 USD
View
A
Retailer 8
-
£486 GBP
€620 EUR
View
A
Retailer 9
-
£486 GBP
$651 USD
View
A
Retailer 10
-
£493 GBP
$660 USD
View
A
Retailer 11
-
£516 GBP
ZAR 11,165 ZAR
View
A
Retailer 12
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£536 GBP
View
A
Retailer 13
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£700 GBP
A$1,442 AUD
View
B+
Retailer 14
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£778 GBP
$1,042 USD
View
B+
Retailer 15
-
£880 GBP
$1,179 USD
View
B+
Retailer 16
-
£959 GBP
SGD 1,737 SGD
View
B+
Retailer 17
-
£965 GBP
$1,293 USD
View
B+
Retailer 18
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£998 GBP
$1,338 USD
View
B+
Retailer 19
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£1,052 GBP
$1,409 USD
View
B+
Retailer 20
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£1,146 GBP
$1,535 USD
View
B+
Retailer 21
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£1,172 GBP
View
B+
Retailer 22
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£1,187 GBP
$1,590 USD
View
B+
Retailer 23
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£1,209 GBP
View
Most Expensive
B
Rare Carat
A8-272A · Oct 28
£1,929 GBP
$2,585 USD
View
23 more retailers have this diamond
Prices start from £242 GBPSave up to £1,687 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