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Cushion|Lab Grown|IGI

11.45ct G VS1 Cushion Lab Grown Diamond

ID • G/VS1 • IGI LG618439643

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG618439643

Diamond specifications and retailer prices

From €1,803 EUR
£1,592 GBP
As of November 2, 2026
Save €14,780 EUR (89%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: €16,583 EUR at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 11.45ct lab-grown cushion diamond

This 11.45ct lab-grown cushion sits in the over five carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG618439643 or 618439643. Listed at 19 retailers as of November 2, 2026, with prices from €1,803 to €16,583, a €14,780 spread on the same certified stone. Brilliant Earth lists it at €16,583. 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

11.45
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38°
Pavilion angle31.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG618439643
Dimensions12.43 × 12.29 × 7.97 mm
L/W Ratio1.01
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
12.43 mm12.29 mm11.45 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG618439643
Side View
Table 63.0%Crown 38°Girdle: THK-VTKPavilion 31.2°Culet: NoneDepth 64.8%

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 2
Current: €16,583 EUR|Low: €1,803 EUR|High: €17,092 EUR|Avg: €4,502 EUR|+10.5%
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
November 3, 2026
Retailer 10€1,803 EUR
Retailer 3€2,167 EUR
Retailer 6€2,245 EUR
Retailer 15€2,394 EUR
Retailer 7€2,713 EUR
Retailer 8€3,060 EUR
Retailer 13€3,210 EUR
Retailer 9€3,233 EUR
Retailer 12€3,388 EUR
Retailer 2€3,479 EUR
Retailer 11€4,160 EUR
Retailer 14€5,354 EUR
Retailer 5€5,995 EUR
Retailer 4€6,361 EUR
Brilliant Earth€16,583 EUR

41 data points across 15 retailers

19 retailers€1,803 EUR to €16,583 EUR

A
Cheapest Retailer
-
€1,803 EUR
£1,592 GBP
A
Retailer 2
-
€2,167 EUR
$2,430 USD
View
Final sale: no returns
Retailer 3
-
€2,245 EUR
$2,518 USD
View
Price last confirmed 23 days ago
A
Retailer 4
-
€2,394 EUR
$2,685 USD
View
A
Retailer 5
-
€2,713 EUR
$3,043 USD
View
A
Retailer 6
-
€3,060 EUR
£2,702 GBP
View
A
Retailer 7
-
€3,210 EUR
$3,600 USD
View
A
Retailer 8
-
€3,233 EUR
$3,626 USD
View
A
Retailer 9
-
€3,388 EUR
View
A
Retailer 10
-
€3,479 EUR
ZAR 63,036 ZAR
View
A
Retailer 11
-
€4,160 EUR
A$7,178 AUD
View
B+
Retailer 12
-
€4,267 EUR
£3,768 GBP
View
B+
Retailer 13
-
€5,354 EUR
$6,005 USD
View
Retailer 14
-
€5,570 EUR
$6,247 USD
View
Price last confirmed 7 days ago
B+
Retailer 15
-
€5,995 EUR
$6,724 USD
View
B+
Retailer 16
-
€6,361 EUR
$7,135 USD
View
B
Retailer 17
-
€6,911 EUR
$7,751 USD
View
B
Retailer 18
-
€7,848 EUR
$8,803 USD
View
Most Expensive
B
Brilliant Earth
10794074A · Nov 2
€16,583 EUR
$18,600 USD
View
18 more retailers have this diamond
Prices start from €1,803 EURSave up to €14,780 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
11.45ct Cushion
€1,803 EUR