Radiant|Lab Grown|IGI

1.54ct E IF Radiant Lab Grown Diamond

ID • E/IF • IGI LG683546124

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

Certificate IGI LG683546124

Diamond specifications and retailer prices

From £249 GBP
$334 USD
As of October 30, 2026
Save £3,309 GBP (93%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: £3,559 GBP at Diamond Quarter · As of October 31, 2026
View at Diamond Quarter

About this 1.54ct lab-grown radiant diamond

This 1.54ct lab-grown radiant sits in the one-and-a-half to two carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG683546124 or 683546124. Listed at 25 retailers as of October 30, 2026, with prices from £249 to £3,559, a £3,309 spread on the same certified stone. Diamond Quarter lists it at £3,559. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.54
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.9°
Pavilion angle38.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG683546124
Dimensions7.99 × 5.69 × 3.93 mm
L/W Ratio1.40
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
7.99 mm5.69 mm1.54 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG683546124
Side View
Table 63.0%Crown 39.9°Girdle: MED-STKPavilion 38.5°Culet: NoneDepth 69.1%

Caratlytics Score

How it works →
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: £554 GBP|Low: £237 GBP|High: £2,642 GBP|Avg: £833 GBP|+2.3%
Retailer 1
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Retailer 22
November 1, 2026
Retailer 6£249 GBP
Retailer 3£290 GBP
Retailer 19£297 GBP
Retailer 9£309 GBP
Retailer 14£309 GBP
Retailer 2£422 GBP
Retailer 10£499 GBP
Retailer 8£502 GBP
Retailer 22£531 GBP
Retailer 1£554 GBP
Retailer 12£568 GBP
Retailer 21£720 GBP
Retailer 5£794 GBP
Retailer 11£805 GBP
Retailer 7£994 GBP
Retailer 15£1,026 GBP
Retailer 18£1,110 GBP
Retailer 16£1,168 GBP
Retailer 13£1,210 GBP
Retailer 20£1,245 GBP
Retailer 4£1,717 GBP
Retailer 17£2,224 GBP

35 data points across 22 retailers

25 retailers£249 GBP to £3,559 GBP

A
Cheapest Retailer
-
£249 GBP
$334 USD
A
Retailer 2
-
£290 GBP
$388 USD
View
A
Retailer 3
-
£297 GBP
$398 USD
View
Final sale: no returns
A
Retailer 4
-
£309 GBP
$414 USD
View
A
Retailer 5
-
£309 GBP
$414 USD
View
A
Retailer 6
-
£422 GBP
$565 USD
View
A
Retailer 7
-
£499 GBP
$668 USD
View
A
Retailer 8
-
£502 GBP
$672 USD
View
A
Retailer 9
-
£531 GBP
ZAR 11,499 ZAR
View
A
Retailer 10
-
£554 GBP
View
A
Retailer 11
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£568 GBP
€725 EUR
View
A
Retailer 12
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£720 GBP
A$1,485 AUD
View
B+
Retailer 13
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£794 GBP
$1,064 USD
View
B+
Retailer 14
-
£805 GBP
$1,078 USD
View
B+
Retailer 15
-
£994 GBP
$1,332 USD
View
B+
Retailer 16
-
£1,026 GBP
$1,375 USD
View
B+
Retailer 17
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£1,110 GBP
A$2,288 AUD
View
B+
Retailer 18
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£1,140 GBP
$1,527 USD
View
B+
Retailer 19
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£1,168 GBP
$1,565 USD
View
B+
Retailer 20
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£1,210 GBP
$1,621 USD
View
B+
Retailer 21
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£1,245 GBP
View
B
Retailer 22
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£1,376 GBP
$1,844 USD
View
Retailer 23
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£1,717 GBP
$2,300 USD
View
Price last confirmed 13 days ago
B
Retailer 24
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£2,224 GBP
$2,980 USD
View
Most Expensive
B
Diamond Quarter
1.54IFELG2432EDN · Oct 31
£3,559 GBP
View
24 more retailers have this diamond
Prices start from £249 GBPSave up to £3,309 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
1.54ct Radiant
£249 GBP