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Cushion|Lab Grown|IGI

3.11ct D VVS1 Cushion Lab Grown Diamond

EX • D/VVS1 • IGI LG735531364

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

Certificate IGI LG735531364

Diamond specifications and retailer prices

From $1,459 AUD
$1,025 USD
As of October 31, 2026
Save $11,780 AUD (89%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $13,239 AUD at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

About this 3.11ct lab-grown cushion diamond

This 3.11ct lab-grown cushion sits in the three to five carat band, graded D colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG735531364 or 735531364. Listed at 21 retailers as of October 28, 2026, with prices from $1,459 to $13,239, a $11,780 spread on the same certified stone. Brilliant Earth lists it at $13,239. 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

3.11
Carat
D
Colour
VVS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.5°
Pavilion angle38.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG735531364
Dimensions8.50 × 8.50 × 5.58 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
8.50 mm8.50 mm3.11 ctD / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG735531364
Side View
Table 61.0%Crown 38.5°Girdle: MED-STKPavilion 38.1°Culet: NoneDepth 65.6%

Caratlytics Score

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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: $13,239 AUD|Low: $1,459 AUD|High: $13,239 AUD|Avg: $4,108 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 31, 2026
Retailer 14$1,459 AUD
Retailer 18$1,737 AUD
Retailer 9$1,859 AUD
Retailer 6$1,903 AUD
Retailer 19$2,285 AUD
Retailer 13$2,330 AUD
Retailer 15$2,442 AUD
Retailer 3$3,056 AUD
Retailer 2$3,416 AUD
Retailer 16$3,513 AUD
Retailer 10$3,896 AUD
Retailer 11$4,187 AUD
Retailer 7$4,732 AUD
Retailer 4$4,952 AUD
Retailer 17$5,158 AUD
Retailer 12$5,259 AUD
Retailer 8$5,357 AUD
Retailer 5$5,754 AUD
Retailer 20$5,843 AUD
Brilliant Earth$13,239 AUD

37 data points across 20 retailers

21 retailers$1,459 AUD to $13,239 AUD

A
Cheapest Retailer
-
$1,459 AUD
$1,025 USD
Final sale: no returns
A
Retailer 2
-
$1,737 AUD
$1,220 USD
View
A
Retailer 3
-
$1,859 AUD
HK$10,200 HKD
View
A
Retailer 4
-
$1,903 AUD
$1,337 USD
View
A
Retailer 5
-
$2,285 AUD
$1,605 USD
View
A
Retailer 6
-
$2,330 AUD
£1,289 GBP
View
Retailer 7
-
$2,366 AUD
£1,309 GBP
View
Price last confirmed 16 days ago
A
Retailer 8
-
$2,442 AUD
€1,634 EUR
View
B+
Retailer 9
-
$3,056 AUD
$2,147 USD
View
B+
Retailer 10
-
$3,416 AUD
View
B+
Retailer 11
-
$3,513 AUD
ZAR 39,862 ZAR
View
B+
Retailer 12
-
$3,896 AUD
$2,737 USD
View
B+
Retailer 13
-
$4,187 AUD
£2,316 GBP
View
B+
Retailer 14
-
$4,732 AUD
$3,324 USD
View
B
Retailer 15
-
$4,952 AUD
$3,479 USD
View
B+
Retailer 16
-
$5,158 AUD
£2,853 GBP
View
B
Retailer 17
-
$5,259 AUD
$3,694 USD
View
B
Retailer 18
-
$5,357 AUD
SGD 5,085 SGD
View
B
Retailer 19
-
$5,754 AUD
$4,042 USD
View
Retailer 20
-
$5,843 AUD
View
Price last confirmed 26 days ago
Most Expensive
B
Brilliant Earth
16122051A · Oct 28
$13,239 AUD
$9,300 USD
View
20 more retailers have this diamond
Prices start from $1,459 AUDSave up to $11,780 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
3.11ct Cushion
$1,459 AUD