Cushion|Lab Grown|IGI

1.05ct F VS1 Cushion Lab Grown Diamond

GD • F/VS1 • IGI LG678529695

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG678529695

Diamond specifications and retailer prices

From £147 GBP
$197 USD
As of October 25, 2026
Save £543 GBP (79%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £791 GBP at Reve Diamonds · As of October 11, 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 standard cut grade and certified by IGI LG678529695 or 678529695. Listed at 14 retailers as of October 25, 2026, with a 370% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.05
Carat
F
Colour
VS1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle29.4°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG678529695
Dimensions7.08 × 5.49 × 3.63 mm
L/W Ratio1.29
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.08 mm5.49 mm1.05 ctF / VS1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG678529695
Side View
Table 65.0%Crown 29.4°Girdle: MED-THKPavilion 40.7°Culet: NoneDepth 66.1%

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 25
Current: £176 GBP|Low: £128 GBP|High: £791 GBP|Avg: £375 GBP|+2.3%
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
Reve Diamonds
October 30, 2026
Retailer 5£131 GBP
Retailer 13£147 GBP
Retailer 1£176 GBP
Retailer 11£252 GBP
Retailer 3£252 GBP
Retailer 7£258 GBP
Retailer 6£266 GBP
Retailer 8£269 GBP
Retailer 10£279 GBP
Retailer 12£357 GBP
Retailer 2£385 GBP
Retailer 4£513 GBP
Retailer 9£690 GBP
Retailer 14£745 GBP
Reve Diamonds£791 GBP

23 data points across 15 retailers

14 retailers£147 GBP to £690 GBP

A
Cheapest Retailer
-
£147 GBP
$197 USD
A
Retailer 2
-
£176 GBP
View
B+
Retailer 3
-
£252 GBP
ZAR 5,459 ZAR
View
B+
Retailer 4
-
£252 GBP
$338 USD
View
B+
Retailer 5
-
£258 GBP
View
B+
Retailer 6
-
£266 GBP
$357 USD
View
B+
Retailer 7
-
£269 GBP
€344 EUR
View
B+
Retailer 8
-
£279 GBP
View
B+
Retailer 9
-
£357 GBP
A$738 AUD
View
B+
Retailer 10
-
£385 GBP
$516 USD
View
B
Retailer 11
-
£513 GBP
$688 USD
View
B
Retailer 12
-
£690 GBP
View
Retailer 13
-
£745 GBP
$1,000 USD
View
Price last confirmed 11 days ago
Most Expensive
Reve Diamonds
A96FBC157 · Oct 11
£791 GBP
$1,062 USD
View
Price last confirmed 22 days ago
13 more retailers have this diamond
Prices start from £147 GBPSave up to £543 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
£147 GBP