Radiant|Lab Grown|IGI

1.51ct E VVS1 Radiant Lab Grown Diamond

ID • E/VVS1 • IGI LG743578303

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

Certificate IGI LG743578303

Diamond specifications and retailer prices

From £154 GBP
$205 USD
As of October 27, 2026
Save £1,476 GBP (91%) vs most expensive(unlock to see where)
27 retailers carry this diamond
Most expensive: £2,005 GBP at Brilliant Earth · As of September 19, 2026
View at Brilliant Earth

About this 1.51ct lab-grown radiant diamond

This 1.51ct lab-grown radiant sits in the one-and-a-half to two carat band, graded E colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG743578303 or 743578303. Listed at 27 retailers as of October 27, 2026, with a 959% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
E
Colour
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.6°
Pavilion angle34.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG743578303
Dimensions8.25 × 5.72 × 3.77 mm
L/W Ratio1.44
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
8.25 mm5.72 mm1.51 ctE / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG743578303
Side View
Table 63.0%Crown 43.6°Girdle: MED-STKPavilion 34.1°Culet: NoneDepth 65.9%

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 27
Current: £391 GBP|Low: £171 GBP|High: £1,414 GBP|Avg: £622 GBP|+4.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
October 29, 2026
Retailer 5£171 GBP
Retailer 13£191 GBP
Retailer 11£337 GBP
Retailer 7£361 GBP
Retailer 1£391 GBP
Retailer 4£439 GBP
Retailer 8£491 GBP
Retailer 12£615 GBP
Retailer 14£676 GBP
Retailer 6£824 GBP
Retailer 9£844 GBP
Retailer 10£1,010 GBP
Retailer 2£1,179 GBP
Retailer 3£1,414 GBP

42 data points across 14 retailers

27 retailers£154 GBP to £1,630 GBP

A
Cheapest Retailer
-
£154 GBP
$205 USD
A
Retailer 2
-
£171 GBP
$228 USD
View
Final sale: no returns
A
Retailer 3
-
£178 GBP
$237 USD
View
A
Retailer 4
-
£191 GBP
$254 USD
View
A
Retailer 5
-
£191 GBP
$254 USD
View
B+
Retailer 6
-
£255 GBP
$339 USD
View
A
Retailer 7
-
£337 GBP
€427 EUR
View
A
Retailer 8
-
£348 GBP
$464 USD
View
A
Retailer 9
-
£355 GBP
$473 USD
View
A
Retailer 10
-
£361 GBP
ZAR 7,774 ZAR
View
A
Retailer 11
-
£391 GBP
View
A
Retailer 12
-
£439 GBP
$585 USD
View
A
Retailer 13
-
£491 GBP
A$1,006 AUD
View
B+
Retailer 14
-
£615 GBP
$819 USD
View
B+
Retailer 15
-
£676 GBP
$900 USD
View
B+
Retailer 16
-
£805 GBP
$1,072 USD
View
B+
Retailer 17
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£824 GBP
View
B+
Retailer 18
-
£844 GBP
View
B
Retailer 19
-
£908 GBP
$1,209 USD
View
Retailer 20
-
£1,010 GBP
$1,345 USD
View
Price last confirmed 11 days ago
B
Retailer 21
-
£1,179 GBP
$1,570 USD
View
B
Retailer 22
-
£1,413 GBP
$1,882 USD
View
B
Retailer 23
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£1,414 GBP
$1,883 USD
View
B
Retailer 24
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£1,472 GBP
$1,960 USD
View
B
Retailer 25
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£1,630 GBP
$2,170 USD
View
B
Retailer 26
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£1,630 GBP
$2,170 USD
View
Most Expensive
Brilliant Earth
17906787A · Sep 19
£2,005 GBP
$2,670 USD
View
Price last confirmed 40 days ago
26 more retailers have this diamond
Prices start from £154 GBPSave up to £1,476 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
1.51ct Radiant
£154 GBP