Radiant|Lab Grown|IGI

1.05ct E VS1 Radiant Lab Grown Diamond

ID • E/VS1 • IGI LG645464809

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

Certificate IGI LG645464809

Diamond specifications and retailer prices

From £149 GBP
$199 USD
As of October 30, 2026
Save £741 GBP (83%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £1,425 GBP at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 1.05ct lab-grown radiant diamond

This 1.05ct lab-grown radiant sits in the classic one-carat band, graded E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG645464809 or 645464809. Listed at 21 retailers as of October 30, 2026, with a 499% 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

1.05
Carat
E
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle42.9°
Pavilion angle33.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG645464809
Dimensions7.04 × 5.07 × 3.30 mm
L/W Ratio1.39
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
7.04 mm5.07 mm1.05 ctE / VS1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateIGI LG645464809
Side View
Table 68.0%Crown 42.9°Girdle: STK-VTKPavilion 33.3°Culet: NoneDepth 65.1%

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: £1,425 GBP|Low: £143 GBP|High: £1,425 GBP|Avg: £521 GBP
Do Amore Diamonds
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 31, 2026
Retailer 3£149 GBP
Retailer 13£166 GBP
Retailer 4£184 GBP
Retailer 11£256 GBP
Retailer 5£262 GBP
Retailer 7£350 GBP
Retailer 2£378 GBP
Retailer 9£392 GBP
Retailer 12£595 GBP
Retailer 6£796 GBP
Retailer 10£813 GBP
Retailer 8£816 GBP
Retailer 14£889 GBP
Do Amore Diamonds£1,425 GBP

42 data points across 14 retailers

21 retailers£149 GBP to £889 GBP

A
Cheapest Retailer
-
£149 GBP
$199 USD
A
Retailer 2
-
£166 GBP
$223 USD
View
Final sale: no returns
A
Retailer 3
-
£172 GBP
$231 USD
View
A
Retailer 4
-
£184 GBP
$247 USD
View
A
Retailer 5
-
£184 GBP
$247 USD
View
A
Retailer 6
-
£202 GBP
$270 USD
View
A
Retailer 7
-
£248 GBP
$332 USD
View
Retailer 8
-
£256 GBP
View
Price last confirmed 14 days ago
A
Retailer 9
-
£262 GBP
$351 USD
View
B+
Retailer 10
-
£350 GBP
ZAR 7,567 ZAR
View
B+
Retailer 11
-
£378 GBP
View
Retailer 12
-
£392 GBP
$525 USD
View
Price last confirmed 13 days ago
B
Retailer 13
-
£516 GBP
View
B
Retailer 14
-
£595 GBP
$797 USD
View
B
Retailer 15
-
£654 GBP
$876 USD
View
B
Retailer 16
-
£782 GBP
$1,048 USD
View
B
Retailer 17
-
£796 GBP
View
Retailer 18
-
£813 GBP
$1,090 USD
View
Price last confirmed 10 days ago
B
Retailer 19
-
£816 GBP
View
B
Retailer 20
-
£889 GBP
$1,191 USD
View
Most Expensive
Do Amore Diamonds
27-D1C98F187 · Oct 31
£1,425 GBP
$1,910 USD
View
Price under review
20 more retailers have this diamond
Prices start from £149 GBPSave up to £741 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
1.05ct Radiant
£149 GBP