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Cushion|Lab Grown|IGI

1.05ct F VS1 Cushion Lab Grown Diamond

ID • F/VS1 • IGI LG842630527

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG842630527

Diamond specifications and retailer prices

From £172 GBP
HK$1,800 HKD
As of November 1, 2026
Save £353 GBP (67%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £801 GBP at Reve Diamonds · As of October 25, 2026
View at Reve Diamonds

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 LG842630527 or 842630527. Listed at 15 retailers as of October 27, 2026, with a 205% 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
F
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle38.6°
Pavilion angle37.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG842630527
Dimensions6.67 × 5.12 × 3.60 mm
L/W Ratio1.30
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.67 mm5.12 mm1.05 ctF / VS1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateIGI LG842630527
Side View
Table 69.0%Crown 38.6°Girdle: MED-STKPavilion 37.5°Culet: NoneDepth 70.3%

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 1
Current: £391 GBP|Low: £136 GBP|High: £801 GBP|Avg: £384 GBP|+1.2%
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
Retailer 15
Retailer 16
Reve Diamonds
November 2, 2026
Retailer 5£136 GBP
Retailer 8£172 GBP
Retailer 4£181 GBP
Retailer 9£250 GBP
Retailer 3£253 GBP
Retailer 16£254 GBP
Retailer 13£264 GBP
Retailer 6£271 GBP
Retailer 14£323 GBP
Retailer 2£380 GBP
Retailer 1£391 GBP
Retailer 12£408 GBP
Retailer 10£440 GBP
Retailer 11£485 GBP
Retailer 7£524 GBP
Retailer 15£704 GBP
Reve Diamonds£801 GBP

19 data points across 17 retailers

15 retailers£172 GBP to £524 GBP

A
Cheapest Retailer
-
£172 GBP
HK$1,800 HKD
A
Retailer 2
-
£250 GBP
€320 EUR
View
A
Retailer 3
-
£253 GBP
$339 USD
View
Retailer 4
-
£254 GBP
ZAR 5,513 ZAR
View
Price last confirmed 10 days ago
A
Retailer 5
-
£264 GBP
View
Retailer 6
-
£271 GBP
$364 USD
View
Price last confirmed 8 days ago
Retailer 7
-
£323 GBP
View
Price last confirmed 7 days ago
Retailer 8
-
£380 GBP
$510 USD
View
Price last confirmed 14 days ago
B+
Retailer 9
-
£391 GBP
$525 USD
View
B+
Retailer 10
-
£408 GBP
SGD 740 SGD
View
B+
Retailer 11
-
£440 GBP
$590 USD
View
B+
Retailer 12
-
£485 GBP
$651 USD
View
B
Retailer 13
-
£524 GBP
$704 USD
View
Retailer 14
-
£704 GBP
View
Price last confirmed 7 days ago
Most Expensive
Reve Diamonds
E01BC6B7A · Oct 25
£801 GBP
$1,075 USD
View
Price last confirmed 8 days ago
14 more retailers have this diamond
Prices start from £172 GBPSave up to £353 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
£172 GBP