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Cushion|Lab Grown|IGI

1.05ct F VS1 Cushion Lab Grown Diamond

ID • F/VS1 • IGI LG586355048

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG586355048

Diamond specifications and retailer prices

From £189 GBP
$253 USD
As of October 30, 2026
Save £892 GBP (83%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £1,081 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.05ct lab-grown cushion diamond

This 1.05ct lab-grown cushion sits in the classic one-carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG586355048 or 586355048. Listed at 15 retailers as of October 29, 2026, with prices from £189 to £1,081, a £892 spread on the same certified stone. Brilliant Earth lists it at £1,081. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.05
Carat
F
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.9°
Pavilion angle38.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG586355048
Dimensions5.61 × 6.74 × 3.75 mm
L/W Ratio1.20
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
5.61 mm6.74 mm1.05 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG586355048
Side View
Table 63.0%Crown 33.9°Girdle: MED-STKPavilion 38.6°Culet: NoneDepth 66.8%

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 30
Current: £1,081 GBP|Low: £189 GBP|High: £1,103 GBP|Avg: £524 GBP|-2.0%
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
October 30, 2026
Retailer 4£189 GBP
Retailer 12£209 GBP
Retailer 2£251 GBP
Retailer 14£270 GBP
Retailer 13£355 GBP
Retailer 9£360 GBP
Retailer 15£384 GBP
Retailer 8£391 GBP
Retailer 6£401 GBP
Retailer 10£511 GBP
Retailer 7£681 GBP
Retailer 3£712 GBP
Retailer 11£840 GBP
Retailer 5£953 GBP
Brilliant Earth£1,081 GBP

36 data points across 15 retailers

15 retailers£189 GBP to £1,081 GBP

A
Cheapest Retailer
-
£189 GBP
$253 USD
Final sale: no returns
A
Retailer 2
-
£209 GBP
$281 USD
View
A
Retailer 3
-
£251 GBP
View
A
Retailer 4
-
£270 GBP
$362 USD
View
B+
Retailer 5
-
£355 GBP
$477 USD
View
B+
Retailer 6
-
£360 GBP
ZAR 7,798 ZAR
View
B+
Retailer 7
-
£384 GBP
$515 USD
View
B+
Retailer 8
-
£391 GBP
View
B+
Retailer 9
-
£401 GBP
HK$4,200 HKD
View
Retailer 10
-
£509 GBP
A$1,050 AUD
View
Price last confirmed 36 days ago
B+
Retailer 11
-
£511 GBP
A$1,054 AUD
View
B
Retailer 12
-
£712 GBP
$956 USD
View
B
Retailer 13
-
£840 GBP
View
B
Retailer 14
-
£953 GBP
$1,279 USD
View
Most Expensive
B
Brilliant Earth
17969128A · Oct 29
£1,081 GBP
$1,450 USD
View
14 more retailers have this diamond
Prices start from £189 GBPSave up to £892 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 Cushion
£189 GBP