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Cushion|Lab Grown|IGI

11.05ct G VS1 Cushion Lab Grown Diamond

ID • G/VS1 • IGI LG627413588

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG627413588

Diamond specifications and retailer prices

From $2,208 USD
£1,739 GBP
As of October 30, 2026
Save $15,742 USD (88%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $17,950 USD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 11.05ct lab-grown cushion diamond

This 11.05ct 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 LG627413588 or 627413588. Listed at 17 retailers as of October 29, 2026, with prices from $2,208 to $17,950, a $15,742 spread on the same certified stone. Brilliant Earth lists it at $17,950. 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

11.05
Carat
G
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.4°
Pavilion angle39.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG627413588
Dimensions12.96 × 12.30 × 8.45 mm
L/W Ratio1.05
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
12.96 mm12.30 mm11.05 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG627413588
Side View
Table 64.0%Crown 38.4°Girdle: STK-THKPavilion 39.8°Culet: NoneDepth 68.7%

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 30
Current: $17,950 USD|Low: $2,201 USD|High: $17,950 USD|Avg: $5,052 USD
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
October 31, 2026
Retailer 9$2,208 USD
Retailer 5$2,646 USD
Retailer 15$2,741 USD
Retailer 4$2,905 USD
Retailer 7$3,229 USD
Retailer 8$3,775 USD
Retailer 14$3,829 USD
Retailer 10$4,243 USD
Retailer 3$4,275 USD
Retailer 2$4,342 USD
Retailer 12$5,087 USD
Retailer 13$6,956 USD
Retailer 11$7,332 USD
Retailer 6$7,719 USD
Brilliant Earth$17,950 USD

43 data points across 15 retailers

17 retailers$2,208 USD to $17,950 USD

A
Cheapest Retailer
-
$2,208 USD
£1,739 GBP
A
Retailer 2
-
$2,646 USD
View
Final sale: no returns
Retailer 3
-
$2,741 USD
View
Price last confirmed 20 days ago
A
Retailer 4
-
$2,905 USD
View
A
Retailer 5
-
$3,229 USD
View
A
Retailer 6
-
$3,775 USD
£2,972 GBP
View
A
Retailer 7
-
$3,829 USD
View
A
Retailer 8
-
$4,243 USD
ZAR 68,549 ZAR
View
Retailer 9
-
$4,275 USD
View
Price last confirmed 10 days ago
A
Retailer 10
-
$4,342 USD
€4,135 EUR
View
Retailer 11
-
$5,087 USD
A$7,826 AUD
View
Price last confirmed 9 days ago
B+
Retailer 12
-
$5,197 USD
£4,092 GBP
View
B+
Retailer 13
-
$6,956 USD
View
B+
Retailer 14
-
$7,332 USD
View
B
Retailer 15
-
$7,719 USD
View
B
Retailer 16
-
$9,570 USD
View
Most Expensive
B
Brilliant Earth
20601816A · Oct 29
$17,950 USD
View
16 more retailers have this diamond
Prices start from $2,208 USDSave up to $15,742 USD

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
11.05ct Cushion
$2,208 USD