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Cushion|Lab Grown|IGI

1.03ct G VS1 Cushion Lab Grown Diamond

ID • G/VS1 • IGI LG841628695

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

Certificate IGI LG841628695

Diamond specifications and retailer prices

From £247 GBP
$331 USD
As of November 1, 2026
Save £491 GBP (67%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £738 GBP at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 1.03ct lab-grown cushion diamond

This 1.03ct lab-grown cushion sits in the classic one-carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG841628695 or 841628695. Listed at 11 retailers as of November 1, 2026, with prices from £247 to £738, a £491 spread on the same certified stone. Brilliant Earth lists it at £738. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.03
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle39°
OriginLab Grown
Grading LabIGI
CertificateIGI LG841628695
Dimensions5.93 × 5.87 × 3.84 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
5.93 mm5.87 mm1.03 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG841628695
Side View
Table 65.0%Crown 36°Girdle: MED-STKPavilion 39°Culet: NoneDepth 65.4%

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: £293 GBP|Low: £247 GBP|High: £729 GBP|Avg: £397 GBP
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 7£247 GBP
Retailer 3£267 GBP
Retailer 10£273 GBP
Retailer 4£287 GBP
Retailer 1£293 GBP
Retailer 6£332 GBP
Retailer 2£369 GBP
Retailer 9£493 GBP
Retailer 8£526 GBP
Retailer 5£706 GBP

28 data points across 10 retailers

11 retailers£247 GBP to £738 GBP

A
Cheapest Retailer
-
£247 GBP
$331 USD
A
Retailer 2
-
£267 GBP
View
A
Retailer 3
-
£273 GBP
$366 USD
View
A
Retailer 4
-
£287 GBP
View
A
Retailer 5
-
£293 GBP
€375 EUR
View
B+
Retailer 6
-
£332 GBP
$445 USD
View
B+
Retailer 7
-
£369 GBP
$495 USD
View
B+
Retailer 8
-
£493 GBP
$661 USD
View
B
Retailer 9
-
£526 GBP
$706 USD
View
B
Retailer 10
-
£706 GBP
View
Most Expensive
B
Brilliant Earth
22302301A · Nov 2
£738 GBP
$990 USD
View
10 more retailers have this diamond
Prices start from £247 GBPSave up to £491 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
1.03ct Cushion
£247 GBP