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Radiant|Lab Grown|IGI

1.59ct E VS1 Radiant Lab Grown Diamond

ID • E/VS1 • IGI LG818694629

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

Certificate IGI LG818694629

Diamond specifications and retailer prices

From £186 GBP
$248 USD
As of October 28, 2026
Save £657 GBP (78%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £1,254 GBP at Brilliant Earth · As of October 21, 2026
View at Brilliant Earth

About this 1.59ct lab-grown radiant diamond

This 1.59ct lab-grown radiant sits in the one-and-a-half to two carat band, graded E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG818694629 or 818694629. Listed at 22 retailers as of October 28, 2026, with a 353% 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

1.59
Carat
E
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.8°
Pavilion angle38.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818694629
Dimensions8.37 × 5.86 × 3.88 mm
L/W Ratio1.43
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.37 mm5.86 mm1.59 ctE / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818694629
Side View
Table 63.0%Crown 43.8°Girdle: MediumPavilion 38.2°Culet: NoneDepth 66.2%

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 28
Current: £1,254 GBP|Low: £185 GBP|High: £1,314 GBP|Avg: £531 GBP|-4.6%
Brilliant Earth
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
Retailer 15
Retailer 16
October 29, 2026
Retailer 5£186 GBP
Retailer 8£205 GBP
Retailer 14£279 GBP
Retailer 12£346 GBP
Retailer 10£356 GBP
Retailer 2£384 GBP
Retailer 3£456 GBP
Retailer 11£484 GBP
Retailer 7£620 GBP
Retailer 13£668 GBP
Retailer 4£705 GBP
Retailer 15£757 GBP
Retailer 16£785 GBP
Retailer 9£834 GBP
Retailer 6£839 GBP
Brilliant Earth£1,254 GBP

40 data points across 16 retailers

22 retailers£186 GBP to £843 GBP

Retailer 1
-
£167 GBP
$222 USD
Price last confirmed 13 days ago
A
Retailer 2
-
£186 GBP
$248 USD
View
Final sale: no returns
Retailer 3
-
£191 GBP
$255 USD
View
Price last confirmed 32 days ago
Retailer 4
-
£202 GBP
$269 USD
View
Price last confirmed 31 days ago
Retailer 5
-
£207 GBP
$276 USD
View
Price last confirmed 13 days ago
Retailer 6
-
£207 GBP
$276 USD
View
Price last confirmed 11 days ago
B+
Retailer 7
-
£279 GBP
$372 USD
View
A
Retailer 8
-
£346 GBP
€439 EUR
View
A
Retailer 9
-
£356 GBP
ZAR 7,656 ZAR
View
A
Retailer 10
-
£384 GBP
View
A
Retailer 11
-
£418 GBP
$556 USD
View
B+
Retailer 12
-
£456 GBP
$607 USD
View
A
Retailer 13
-
£484 GBP
A$991 AUD
View
B+
Retailer 14
-
£629 GBP
$837 USD
View
B
Retailer 15
-
£668 GBP
$890 USD
View
B+
Retailer 16
-
£705 GBP
$939 USD
View
B+
Retailer 17
-
£757 GBP
$1,008 USD
View
Retailer 18
-
£785 GBP
$1,045 USD
View
Price last confirmed 11 days ago
B
Retailer 19
-
£834 GBP
View
Retailer 20
-
£839 GBP
SGD 1,509 SGD
View
Price last confirmed 16 days ago
B
Retailer 21
-
£843 GBP
$1,123 USD
View
Most Expensive
Brilliant Earth
20685022A · Oct 21
£1,254 GBP
$1,670 USD
View
Price last confirmed 8 days ago
21 more retailers have this diamond
Prices start from £186 GBPSave up to £657 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
1.59ct Radiant
£186 GBP