CaratHunter
Plans
Cushion|Lab Grown|IGI

1.05ct F VS1 Cushion Lab Grown Diamond

ID • F/VS1 • IGI LG804632907

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG804632907

Diamond specifications and retailer prices

From £246 GBP
€315 EUR
As of November 2, 2026
Save £423 GBP (63%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £820 GBP at Brilliant Earth · As of September 28, 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 LG804632907 or 804632907. Listed at 10 retailers as of November 1, 2026, with a 171% 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
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle33.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG804632907
Dimensions5.77 × 5.70 × 3.70 mm
L/W Ratio1.01
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
5.77 mm5.70 mm1.05 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG804632907
Side View
Table 63.0%Crown 36.5°Girdle: STK-THKPavilion 33.9°Culet: NoneDepth 64.9%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: £250 GBP|Low: £242 GBP|High: £684 GBP|Avg: £366 GBP|+1.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 2, 2026
Retailer 3£246 GBP
Retailer 1£250 GBP
Retailer 7£262 GBP
Retailer 4£272 GBP
Retailer 5£380 GBP
Retailer 6£382 GBP
Retailer 8£501 GBP
Retailer 2£669 GBP

43 data points across 8 retailers

10 retailers£246 GBP to £669 GBP

A
Cheapest Retailer
-
£246 GBP
€315 EUR
A
Retailer 2
-
£250 GBP
View
A
Retailer 3
-
£251 GBP
$337 USD
View
A
Retailer 4
-
£262 GBP
$351 USD
View
A
Retailer 5
-
£272 GBP
View
Retailer 6
-
£380 GBP
$510 USD
View
Price last confirmed 14 days ago
B+
Retailer 7
-
£382 GBP
$512 USD
View
B+
Retailer 8
-
£501 GBP
$672 USD
View
B
Retailer 9
-
£669 GBP
View
Most Expensive
Brilliant Earth
20915085A · Sep 28
£820 GBP
$1,100 USD
View
Price last confirmed 35 days ago
9 more retailers have this diamond
Prices start from £246 GBPSave up to £423 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
£246 GBP