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Cushion|Lab Grown|IGI

1.09ct F VS1 Cushion Lab Grown Diamond

ID • F/VS1 • IGI LG778673843

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG778673843

Diamond specifications and retailer prices

From £130 GBP
$175 USD
As of November 1, 2026
Save £655 GBP (83%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £786 GBP at Reve Diamonds · As of November 1, 2026
View at Reve Diamonds

About this 1.09ct lab-grown cushion diamond

This 1.09ct 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 LG778673843 or 778673843. Listed at 14 retailers as of November 1, 2026, with prices from £130 to £786, a £655 spread on the same certified stone. Reve Diamonds lists it at £786. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.09
Carat
F
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle29.8°
Pavilion angle39.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG778673843
Dimensions7.29 × 5.11 × 3.54 mm
L/W Ratio1.43
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.29 mm5.11 mm1.09 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG778673843
Side View
Table 63.0%Crown 29.8°Girdle: MED-THKPavilion 39.3°Culet: NoneDepth 69.3%

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: £173 GBP|Low: £130 GBP|High: £786 GBP|Avg: £388 GBP|-1.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Reve Diamonds
November 2, 2026
Retailer 10£130 GBP
Retailer 9£145 GBP
Retailer 1£173 GBP
Retailer 6£249 GBP
Retailer 4£253 GBP
Retailer 11£263 GBP
Retailer 8£274 GBP
Retailer 2£328 GBP
Retailer 5£353 GBP
Retailer 7£680 GBP
Retailer 3£750 GBP
Reve Diamonds£786 GBP

43 data points across 12 retailers

14 retailers£130 GBP to £786 GBP

A
Cheapest Retailer
-
£130 GBP
$175 USD
Final sale: no returns
Retailer 2
-
£145 GBP
$194 USD
View
Price last confirmed 8 days ago
A
Retailer 3
-
£173 GBP
View
A
Retailer 4
-
£249 GBP
ZAR 5,407 ZAR
View
A
Retailer 5
-
£253 GBP
View
A
Retailer 6
-
£263 GBP
$353 USD
View
A
Retailer 7
-
£267 GBP
$358 USD
View
A
Retailer 8
-
£274 GBP
View
A
Retailer 9
-
£328 GBP
$440 USD
View
A
Retailer 10
-
£353 GBP
A$728 AUD
View
B+
Retailer 11
-
£506 GBP
$679 USD
View
B
Retailer 12
-
£680 GBP
View
B
Retailer 13
-
£750 GBP
View
Most Expensive
B
Reve Diamonds
68981B167 · Nov 1
£786 GBP
$1,054 USD
View
13 more retailers have this diamond
Prices start from £130 GBPSave up to £655 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
1.09ct Cushion
£130 GBP