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Cushion|Lab Grown|IGI

1.23ct E VS1 Cushion Lab Grown Diamond

ID • E/VS1 • IGI LG803603966

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

Certificate IGI LG803603966

Diamond specifications and retailer prices

From €192 EUR
$214 USD
As of October 31, 2026
Save €954 EUR (83%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: €1,146 EUR at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.23ct lab-grown cushion diamond

This 1.23ct 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 LG803603966 or 803603966. Listed at 15 retailers as of October 31, 2026, with prices from €192 to €1,146, a €954 spread on the same certified stone. Brilliant Earth lists it at €1,146. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.23
Carat
E
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG803603966
Dimensions6.28 × 6.21 × 4.13 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
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
6.28 mm6.21 mm1.23 ctE / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG803603966
Side View
Table 60.0%Crown 35.6°Girdle: MED-THKPavilion 40.2°Culet: NoneDepth 66.5%

Caratlytics Score

How it works →
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 31
Current: €1,146 EUR|Low: €185 EUR|High: €1,146 EUR|Avg: €506 EUR
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
Retailer 17
November 1, 2026
Retailer 12€192 EUR
Retailer 4€214 EUR
Retailer 2€266 EUR
Retailer 8€325 EUR
Retailer 11€354 EUR
Retailer 14€371 EUR
Retailer 10€384 EUR
Retailer 13€400 EUR
Retailer 7€501 EUR
Retailer 9€508 EUR
Retailer 6€523 EUR
Retailer 3€577 EUR
Retailer 17€627 EUR
Retailer 16€731 EUR
Retailer 5€1,001 EUR
Retailer 15€1,044 EUR
Brilliant Earth€1,146 EUR

18 data points across 17 retailers

15 retailers€192 EUR to €1,146 EUR

A
Cheapest Retailer
-
€192 EUR
$214 USD
Final sale: no returns
A
Retailer 2
-
€214 EUR
$239 USD
View
A
Retailer 3
-
€266 EUR
£234 GBP
View
A
Retailer 4
-
€354 EUR
View
A
Retailer 5
-
€371 EUR
$415 USD
View
A
Retailer 6
-
€384 EUR
£338 GBP
View
A
Retailer 7
-
€400 EUR
$447 USD
View
B+
Retailer 8
-
€501 EUR
$560 USD
View
Retailer 9
-
€523 EUR
A$899 AUD
View
Price last confirmed 8 days ago
B+
Retailer 10
-
€577 EUR
$645 USD
View
B+
Retailer 11
-
€627 EUR
A$1,078 AUD
View
B+
Retailer 12
-
€731 EUR
$817 USD
View
B
Retailer 13
-
€1,001 EUR
£881 GBP
View
B
Retailer 14
-
€1,044 EUR
$1,167 USD
View
Most Expensive
B
Brilliant Earth
19740752A · Oct 31
€1,146 EUR
$1,280 USD
View
14 more retailers have this diamond
Prices start from €192 EURSave up to €954 EUR

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
1.23ct Cushion
€192 EUR