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Cushion|Lab Grown|IGI

3.05ct E VVS1 Cushion Lab Grown Diamond

ID • E/VVS1 • IGI LG685578140

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG685578140

Diamond specifications and retailer prices

From $978 AUD
$687 USD
As of October 29, 2026
Save $9,783 AUD (91%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $10,761 AUD at Do Amore Diamonds · As of October 28, 2026
View at Do Amore Diamonds

About this 3.05ct lab-grown cushion diamond

This 3.05ct 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 LG685578140 or 685578140. Listed at 16 retailers as of October 28, 2026, with prices from $978 to $10,761, a $9,783 spread on the same certified stone. Do Amore Diamonds lists it at $10,761. 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

3.05
Carat
E
Colour
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.2°
Pavilion angle38.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG685578140
Dimensions8.36 × 8.36 × 5.55 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.36 mm8.36 mm3.05 ctE / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG685578140
Side View
Table 63.0%Crown 38.2°Girdle: MED-STKPavilion 38.6°Culet: NoneDepth 66.4%

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: $7,772 AUD|Low: $978 AUD|High: $11,046 AUD|Avg: $3,547 AUD|-11.2%
Do Amore Diamonds
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
October 30, 2026
Retailer 3$978 AUD
Retailer 6$1,144 AUD
Retailer 12$1,267 AUD
Retailer 11$1,435 AUD
Retailer 7$1,794 AUD
Retailer 13$1,997 AUD
Retailer 4$2,538 AUD
Retailer 5$2,563 AUD
Retailer 9$2,602 AUD
Retailer 14$3,493 AUD
Retailer 2$3,957 AUD
Retailer 8$4,745 AUD
Do Amore Diamonds$7,772 AUD
Retailer 10$9,224 AUD

31 data points across 14 retailers

16 retailers$978 AUD to $10,761 AUD

A
Cheapest Retailer
-
$978 AUD
$687 USD
Final sale: no returns
Retailer 2
-
$1,144 AUD
$804 USD
View
Price last confirmed 13 days ago
A
Retailer 3
-
$1,267 AUD
$890 USD
View
A
Retailer 4
-
$1,435 AUD
$1,008 USD
View
A
Retailer 5
-
$1,794 AUD
£992 GBP
View
A
Retailer 6
-
$1,997 AUD
$1,403 USD
View
A
Retailer 7
-
$2,538 AUD
$1,783 USD
View
Retailer 8
-
$2,563 AUD
View
Price last confirmed 8 days ago
A
Retailer 9
-
$2,602 AUD
ZAR 29,530 ZAR
View
B+
Retailer 10
-
$3,493 AUD
£1,932 GBP
View
B+
Retailer 11
-
$3,957 AUD
$2,780 USD
View
B+
Retailer 12
-
$4,745 AUD
£2,625 GBP
View
B
Retailer 13
-
$7,772 AUD
$5,460 USD
View
B
Retailer 14
-
$9,224 AUD
$6,480 USD
View
B
Retailer 15
-
$10,347 AUD
$7,269 USD
View
Most Expensive
B
Do Amore Diamonds
23-685578140 · Oct 28
$10,761 AUD
$7,560 USD
View
15 more retailers have this diamond
Prices start from $978 AUDSave up to $9,783 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
3.05ct Cushion
$978 AUD