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Cushion|Lab Grown|IGI

1.05ct F VVS1 Cushion Lab Grown Diamond

EX • F/VVS1 • IGI LG831679952

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG831679952

Diamond specifications and retailer prices

From £141 GBP
As of November 3, 2026
Save £854 GBP (86%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £996 GBP at Helzberg Diamonds · As of November 4, 2026
View at Helzberg 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 VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG831679952 or 831679952. Listed at 16 retailers as of November 3, 2026, with prices from £141 to £996, a £854 spread on the same certified stone. Helzberg Diamonds lists it at £996. 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
VVS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle34.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG831679952
Dimensions7.37 × 5.08 × 3.36 mm
L/W Ratio1.45
Girdle conditionFaceted
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
7.37 mm5.08 mm1.05 ctF / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG831679952
Side View
Table 63.0%Crown 35.1°Girdle: MED-THKPavilion 34.4°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: Nov 3
Current: £996 GBP|Low: £141 GBP|High: £996 GBP|Avg: £415 GBP
Helzberg 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
Retailer 15
Retailer 16
November 4, 2026
Retailer 6£141 GBP
Retailer 2£191 GBP
Retailer 14£267 GBP
Retailer 12£270 GBP
Retailer 9£276 GBP
Retailer 16£281 GBP
Retailer 3£324 GBP
Retailer 15£336 GBP
Retailer 11£382 GBP
Retailer 10£397 GBP
Retailer 7£448 GBP
Retailer 5£544 GBP
Retailer 8£559 GBP
Retailer 4£578 GBP
Retailer 13£733 GBP
Helzberg Diamonds£996 GBP

8 data points across 16 retailers

16 retailers£141 GBP to £996 GBP

A
Cheapest Retailer
-
£141 GBP
Final sale: no returns
A
Retailer 2
-
£191 GBP
View
A
Retailer 3
-
£267 GBP
View
A
Retailer 4
-
£270 GBP
View
A
Retailer 5
-
£276 GBP
View
A
Retailer 6
-
£281 GBP
View
A
Retailer 7
-
£324 GBP
View
A
Retailer 8
-
£336 GBP
View
B+
Retailer 9
-
£382 GBP
View
B+
Retailer 10
-
£397 GBP
View
B+
Retailer 11
-
£448 GBP
View
B+
Retailer 12
-
£544 GBP
View
B+
Retailer 13
-
£559 GBP
View
B
Retailer 14
-
£578 GBP
View
B
Retailer 15
-
£733 GBP
View
Most Expensive
B
Helzberg Diamonds
ZXZOJHMNPPLI · Nov 4
£996 GBP
$1,344 USD
View
15 more retailers have this diamond
Prices start from £141 GBPSave up to £854 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
£141 GBP