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Cushion|Lab Grown|IGI

11.73ct G VS2 Cushion Lab Grown Diamond

ID • G/VS2 • IGI LG620435609

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG620435609

Diamond specifications and retailer prices

From €1,721 EUR
£1,514 GBP
As of November 1, 2026
Save €6,603 EUR (79%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: €8,324 EUR at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 11.73ct lab-grown cushion diamond

This 11.73ct lab-grown cushion sits in the over five carat band, graded G colour (near-colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG620435609 or 620435609. Listed at 16 retailers as of October 31, 2026, with prices from €1,721 to €8,324, a €6,603 spread on the same certified stone. Brilliant Earth lists it at €8,324. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

11.73
Carat
G
Colour
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.9°
Pavilion angle32°
OriginLab Grown
Grading LabIGI
CertificateIGI LG620435609
Dimensions12.81 × 12.60 × 7.89 mm
L/W Ratio1.02
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
12.81 mm12.60 mm11.73 ctG / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG620435609
Side View
Table 63.0%Crown 37.9°Girdle: STK-VTKPavilion 32°Culet: NoneDepth 62.6%

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: Nov 1
Current: €8,324 EUR|Low: €1,721 EUR|High: €8,584 EUR|Avg: €3,907 EUR|-3.0%
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
November 1, 2026
Retailer 2€1,721 EUR
Retailer 14€2,069 EUR
Retailer 3€2,143 EUR
Retailer 11€2,291 EUR
Retailer 4€2,633 EUR
Retailer 7€2,949 EUR
Retailer 9€3,063 EUR
Retailer 10€3,124 EUR
Retailer 8€3,231 EUR
Retailer 5€4,065 EUR
Retailer 6€5,313 EUR
Retailer 13€5,773 EUR
Retailer 12€6,095 EUR
Brilliant Earth€8,324 EUR

42 data points across 14 retailers

16 retailers€1,721 EUR to €8,324 EUR

A
Cheapest Retailer
-
€1,721 EUR
£1,514 GBP
A
Retailer 2
-
€2,069 EUR
$2,311 USD
View
Final sale: no returns
Retailer 3
-
€2,143 EUR
$2,394 USD
View
Price last confirmed 21 days ago
A
Retailer 4
-
€2,291 EUR
$2,560 USD
View
A
Retailer 5
-
€2,633 EUR
$2,942 USD
View
A
Retailer 6
-
€2,949 EUR
£2,594 GBP
View
B+
Retailer 7
-
€3,063 EUR
$3,422 USD
View
A
Retailer 8
-
€3,124 EUR
$3,490 USD
View
A
Retailer 9
-
€3,231 EUR
View
A
Retailer 10
-
€4,065 EUR
£3,576 GBP
View
B+
Retailer 11
-
€5,313 EUR
$5,935 USD
View
B+
Retailer 12
-
€5,773 EUR
$6,450 USD
View
B
Retailer 13
-
€6,095 EUR
$6,809 USD
View
B
Retailer 14
-
€7,056 EUR
$7,883 USD
View
B
Retailer 15
-
€7,496 EUR
$8,375 USD
View
Most Expensive
B
Brilliant Earth
10794619A · Oct 31
€8,324 EUR
$9,300 USD
View
15 more retailers have this diamond
Prices start from €1,721 EURSave up to €6,603 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
11.73ct Cushion
€1,721 EUR