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Cushion|Lab Grown|IGI

11.09ct G VS1 Cushion Lab Grown Diamond

EX • G/VS1 • IGI LG678596589

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG678596589

Diamond specifications and retailer prices

From $2,740 USD
As of October 31, 2026
Save $6,262 USD (70%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $9,002 USD at Taylor and Hart · As of October 30, 2026
View at Taylor and Hart

About this 11.09ct lab-grown cushion diamond

This 11.09ct 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 LG678596589 or 678596589. Listed at 11 retailers as of October 30, 2026, with prices from $2,740 to $9,002, a $6,262 spread on the same certified stone. Taylor and Hart lists it at $9,002. 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

11.09
Carat
G
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle33.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG678596589
Dimensions15.34 × 11.73 × 7.57 mm
L/W Ratio1.31
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
15.34 mm11.73 mm11.09 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG678596589
Side View
Table 60.0%Crown 35.6°Girdle: STK-THKPavilion 33.8°Culet: NoneDepth 64.5%

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: $3,546 USD|Low: $2,080 USD|High: $9,265 USD|Avg: $5,076 USD|-2.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Taylor and Hart
October 31, 2026
Retailer 6$2,080 USD
Retailer 7$2,576 USD
Retailer 4$2,740 USD
Retailer 1$3,546 USD
Retailer 3$3,988 USD
Retailer 10$4,022 USD
Retailer 5$4,781 USD
Retailer 8$4,892 USD
Retailer 2$6,878 USD
Retailer 9$7,334 USD
Taylor and Hart$9,002 USD

43 data points across 11 retailers

11 retailers$2,740 USD to $9,002 USD

Retailer 1
-
$2,080 USD
£1,638 GBP
Price last confirmed 14 days ago
Retailer 2
-
$2,576 USD
View
Price last confirmed 20 days ago
A
Retailer 3
-
$2,740 USD
View
A
Retailer 4
-
$3,546 USD
£2,792 GBP
View
A
Retailer 5
-
$3,988 USD
ZAR 64,423 ZAR
View
A
Retailer 6
-
$4,022 USD
View
Retailer 7
-
$4,781 USD
A$7,355 AUD
View
Price last confirmed 9 days ago
B+
Retailer 8
-
$4,892 USD
£3,852 GBP
View
B+
Retailer 9
-
$6,878 USD
View
B+
Retailer 10
-
$7,334 USD
View
Most Expensive
B
Taylor and Hart
BUENFQE · Oct 30
$9,002 USD
View
10 more retailers have this diamond
Prices start from $2,740 USDSave up to $6,262 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
11.09ct Cushion
$2,740 USD