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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 $3,901 AUD
$2,740 USD
As of November 2, 2026
Save $8,914 AUD (70%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $12,815 AUD at Taylor and Hart · As of October 31, 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 31, 2026, with prices from $3,901 to $12,815, a $8,914 spread on the same certified stone. Taylor and Hart lists it at $12,815. 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
Colour
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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $5,006 AUD|Low: $2,961 AUD|High: $13,189 AUD|Avg: $7,189 AUD|-3.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Taylor and Hart
November 2, 2026
Retailer 6$2,961 AUD
Retailer 7$3,667 AUD
Retailer 5$3,901 AUD
Retailer 1$5,006 AUD
Retailer 4$5,677 AUD
Retailer 10$5,726 AUD
Retailer 3$6,795 AUD
Retailer 8$6,964 AUD
Retailer 2$9,792 AUD
Retailer 9$10,441 AUD
Taylor and Hart$12,815 AUD

43 data points across 11 retailers

11 retailers$3,901 AUD to $12,815 AUD

Retailer 1
-
$2,961 AUD
£1,638 GBP
Price last confirmed 16 days ago
Retailer 2
-
$3,667 AUD
$2,576 USD
View
Price last confirmed 22 days ago
A
Retailer 3
-
$3,901 AUD
$2,740 USD
View
A
Retailer 4
-
$5,006 AUD
£2,769 GBP
View
A
Retailer 5
-
$5,677 AUD
ZAR 64,423 ZAR
View
A
Retailer 6
-
$5,726 AUD
$4,022 USD
View
B+
Retailer 7
-
$6,795 AUD
View
B+
Retailer 8
-
$6,964 AUD
£3,852 GBP
View
B+
Retailer 9
-
$9,792 AUD
$6,878 USD
View
B+
Retailer 10
-
$10,441 AUD
$7,334 USD
View
Most Expensive
B
Taylor and Hart
BUENFQE · Oct 31
$12,815 AUD
$9,002 USD
View
10 more retailers have this diamond
Prices start from $3,901 AUDSave up to $8,914 AUD

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
$3,901 AUD