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Cushion|Lab Grown|IGI

3.56ct E VVS1 Cushion Lab Grown Diamond

ID • E/VVS1 • IGI LG811678412

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG811678412

Diamond specifications and retailer prices

From $1,435 AUD
$1,008 USD
As of October 29, 2026
Save $8,644 AUD (86%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $10,079 AUD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 3.56ct lab-grown cushion diamond

This 3.56ct lab-grown cushion sits in the three to five carat band, graded E colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG811678412 or 811678412. Listed at 20 retailers as of October 29, 2026, with prices from $1,435 to $10,079, a $8,644 spread on the same certified stone. Brilliant Earth lists it at $10,079. 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

3.56
Carat
E
Colour
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle38.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG811678412
Dimensions9.00 × 8.94 × 5.67 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.00 mm8.94 mm3.56 ctE / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG811678412
Side View
Table 65.0%Crown 33.5°Girdle: MED-THKPavilion 38.7°Culet: NoneDepth 63.4%

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 29
Current: $10,079 AUD|Low: $1,435 AUD|High: $10,079 AUD|Avg: $3,818 AUD
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
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
October 30, 2026
Retailer 20$1,435 AUD
Retailer 12$1,603 AUD
Retailer 2$1,732 AUD
Retailer 17$1,906 AUD
Retailer 10$1,929 AUD
Retailer 3$2,124 AUD
Retailer 13$2,291 AUD
Retailer 14$2,516 AUD
Retailer 9$3,142 AUD
Retailer 15$3,455 AUD
Retailer 18$3,522 AUD
Retailer 7$3,618 AUD
Retailer 5$4,100 AUD
Retailer 6$4,657 AUD
Retailer 4$4,884 AUD
Retailer 16$5,073 AUD
Retailer 19$5,170 AUD
Retailer 8$5,851 AUD
Retailer 11$6,117 AUD
Brilliant Earth$10,079 AUD

25 data points across 20 retailers

20 retailers$1,435 AUD to $10,079 AUD

A
Cheapest Retailer
-
$1,435 AUD
$1,008 USD
Final sale: no returns
Retailer 2
-
$1,603 AUD
$1,126 USD
View
Price last confirmed 13 days ago
A
Retailer 3
-
$1,732 AUD
£958 GBP
View
A
Retailer 4
-
$1,906 AUD
$1,339 USD
View
A
Retailer 5
-
$1,929 AUD
$1,355 USD
View
A
Retailer 6
-
$2,124 AUD
$1,492 USD
View
A
Retailer 7
-
$2,291 AUD
£1,267 GBP
View
A
Retailer 8
-
$2,516 AUD
€1,683 EUR
View
A
Retailer 9
-
$3,142 AUD
$2,207 USD
View
A
Retailer 10
-
$3,455 AUD
ZAR 39,211 ZAR
View
A
Retailer 11
-
$3,522 AUD
$2,474 USD
View
Retailer 12
-
$3,618 AUD
View
Price last confirmed 9 days ago
B+
Retailer 13
-
$4,100 AUD
£2,268 GBP
View
B+
Retailer 14
-
$4,657 AUD
$3,271 USD
View
B+
Retailer 15
-
$4,884 AUD
$3,431 USD
View
B+
Retailer 16
-
$5,073 AUD
£2,806 GBP
View
B+
Retailer 17
-
$5,170 AUD
$3,632 USD
View
Retailer 18
-
$5,851 AUD
$4,110 USD
View
Price last confirmed 9 days ago
Retailer 19
-
$6,117 AUD
View
Price last confirmed 21 days ago
Most Expensive
B
Brilliant Earth
21212236A · Oct 29
$10,079 AUD
$7,080 USD
View
19 more retailers have this diamond
Prices start from $1,435 AUDSave up to $8,644 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
3.56ct Cushion
$1,435 AUD