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Radiant|Lab Grown|IGI

1.54ct D VS1 Radiant Lab Grown Diamond

EX • D/VS1 • IGI LG671485680

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

Certificate IGI LG671485680

Diamond specifications and retailer prices

From £164 GBP
As of November 4, 2026
Save £1,377 GBP (89%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: £1,541 GBP at Brilliant Earth · As of November 4, 2026
View at Brilliant Earth

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 D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG671485680 or 671485680. Listed at 23 retailers as of November 4, 2026, with prices from £164 to £1,541, a £1,377 spread on the same certified stone. Brilliant Earth lists it at £1,541. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.54
Carat
D
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.8°
Pavilion angle35.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG671485680
Dimensions8.41 × 5.60 × 3.80 mm
L/W Ratio1.50
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.41 mm5.60 mm1.54 ctD / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG671485680
Side View
Table 63.0%Crown 43.8°Girdle: MediumPavilion 35.1°Culet: NoneDepth 67.9%

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: Nov 4
Current: £1,541 GBP|Low: £159 GBP|High: £1,622 GBP|Avg: £556 GBP|-5.0%
Brilliant Earth
Retailer 2
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Retailer 19
November 5, 2026
Retailer 14£164 GBP
Retailer 15£182 GBP
Retailer 9£196 GBP
Retailer 13£225 GBP
Retailer 5£339 GBP
Retailer 6£340 GBP
Retailer 3£347 GBP
Retailer 12£374 GBP
Retailer 11£395 GBP
Retailer 10£441 GBP
Retailer 7£459 GBP
Retailer 16£653 GBP
Retailer 18£655 GBP
Retailer 17£691 GBP
Retailer 4£787 GBP
Retailer 8£796 GBP
Retailer 2£827 GBP
Retailer 19£933 GBP
Brilliant Earth£1,541 GBP

39 data points across 19 retailers

23 retailers£164 GBP to £1,541 GBP

A
Cheapest Retailer
-
£164 GBP
A
Retailer 2
-
£182 GBP
View
Final sale: no returns
Retailer 3
-
£188 GBP
View
Price last confirmed 39 days ago
Retailer 4
-
£196 GBP
View
Price last confirmed 11 days ago
Retailer 5
-
£196 GBP
View
Price last confirmed 24 days ago
Retailer 6
-
£199 GBP
View
Price last confirmed 39 days ago
A
Retailer 7
-
£225 GBP
View
A
Retailer 8
-
£339 GBP
View
A
Retailer 9
-
£340 GBP
View
A
Retailer 10
-
£347 GBP
View
A
Retailer 11
-
£374 GBP
View
A
Retailer 12
-
£395 GBP
View
A
Retailer 13
-
£441 GBP
View
Retailer 14
-
£459 GBP
View
Price last confirmed 9 days ago
B+
Retailer 15
-
£653 GBP
View
B+
Retailer 16
-
£655 GBP
View
B+
Retailer 17
-
£691 GBP
View
B
Retailer 18
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£731 GBP
View
B+
Retailer 19
-
£787 GBP
View
Retailer 20
-
£796 GBP
View
Price last confirmed 18 days ago
B
Retailer 21
-
£827 GBP
View
B
Retailer 22
-
£933 GBP
View
Most Expensive
B
Brilliant Earth
12844593A · Nov 4
£1,541 GBP
$2,080 USD
View
22 more retailers have this diamond
Prices start from £164 GBPSave up to £1,377 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
£164 GBP