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Cushion|Lab Grown|IGI

1.03ct E VS1 Cushion Lab Grown Diamond

ID • E/VS1 • IGI LG678573929

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG678573929

Diamond specifications and retailer prices

From £134 GBP
$179 USD
As of October 30, 2026
Save £668 GBP (83%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £803 GBP at Brilliant Earth · As of October 10, 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 E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG678573929 or 678573929. Listed at 15 retailers as of October 30, 2026, with a 497% 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

1.03
Carat
E
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle29.3°
Pavilion angle43.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG678573929
Dimensions6.83 × 5.47 × 3.75 mm
L/W Ratio1.25
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.83 mm5.47 mm1.03 ctE / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG678573929
Side View
Table 64.0%Crown 29.3°Girdle: MED-STKPavilion 43.1°Culet: NoneDepth 68.6%

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 30
Current: £803 GBP|Low: £134 GBP|High: £834 GBP|Avg: £412 GBP|-3.6%
Brilliant Earth
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
October 30, 2026
Retailer 16£134 GBP
Retailer 15£149 GBP
Retailer 14£188 GBP
Retailer 7£246 GBP
Retailer 12£257 GBP
Retailer 2£264 GBP
Retailer 3£272 GBP
Retailer 9£274 GBP
Retailer 11£284 GBP
Retailer 13£365 GBP
Retailer 5£388 GBP
Retailer 6£522 GBP
Retailer 10£704 GBP
Retailer 8£721 GBP
Retailer 4£802 GBP
Brilliant Earth£803 GBP

34 data points across 16 retailers

15 retailers£134 GBP to £802 GBP

A
Cheapest Retailer
-
£134 GBP
$179 USD
Final sale: no returns
A
Retailer 2
-
£149 GBP
$199 USD
View
Retailer 3
-
£188 GBP
View
Price last confirmed 13 days ago
A
Retailer 4
-
£246 GBP
$327 USD
View
A
Retailer 5
-
£257 GBP
ZAR 5,529 ZAR
View
A
Retailer 6
-
£264 GBP
View
A
Retailer 7
-
£272 GBP
$362 USD
View
A
Retailer 8
-
£274 GBP
€347 EUR
View
A
Retailer 9
-
£284 GBP
View
B+
Retailer 10
-
£365 GBP
A$747 AUD
View
B+
Retailer 11
-
£388 GBP
$517 USD
View
B
Retailer 12
-
£522 GBP
$696 USD
View
B
Retailer 13
-
£704 GBP
View
B
Retailer 14
-
£802 GBP
$1,068 USD
View
Most Expensive
Brilliant Earth
13063167A · Oct 10
£803 GBP
$1,070 USD
View
Price last confirmed 19 days ago
14 more retailers have this diamond
Prices start from £134 GBPSave up to £668 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
£134 GBP