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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 $1,210 NZD
$682 USD
As of October 31, 2026
Save $12,204 NZD (91%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $13,414 NZD at Do Amore Diamonds · As of October 30, 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 30, 2026, with prices from $1,210 to $13,414, a $12,204 spread on the same certified stone. Do Amore Diamonds lists it at $13,414. 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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $9,510 NZD|Low: $1,198 NZD|High: $13,769 NZD|Avg: $4,399 NZD|-7.3%
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 31, 2026
Retailer 7$1,210 NZD
Retailer 6$1,427 NZD
Retailer 9$1,561 NZD
Retailer 14$1,757 NZD
Retailer 8$2,215 NZD
Retailer 12$2,484 NZD
Retailer 13$3,098 NZD
Retailer 11$3,123 NZD
Retailer 4$3,243 NZD
Retailer 10$4,299 NZD
Retailer 2$4,975 NZD
Retailer 3$5,915 NZD
Do Amore Diamonds$9,510 NZD
Retailer 5$11,497 NZD

29 data points across 14 retailers

16 retailers$1,210 NZD to $13,414 NZD

A
Cheapest Retailer
-
$1,210 NZD
$682 USD
Final sale: no returns
Retailer 2
-
$1,427 NZD
$804 USD
View
Price last confirmed 15 days ago
A
Retailer 3
-
$1,561 NZD
$880 USD
View
A
Retailer 4
-
$1,757 NZD
$990 USD
View
A
Retailer 5
-
$2,215 NZD
£983 GBP
View
A
Retailer 6
-
$2,484 NZD
$1,400 USD
View
A
Retailer 7
-
$3,098 NZD
A$2,686 AUD
View
A
Retailer 8
-
$3,123 NZD
$1,760 USD
View
A
Retailer 9
-
$3,243 NZD
ZAR 29,530 ZAR
View
B+
Retailer 10
-
$4,299 NZD
£1,908 GBP
View
B+
Retailer 11
-
$4,975 NZD
$2,804 USD
View
B+
Retailer 12
-
$5,915 NZD
£2,625 GBP
View
B
Retailer 13
-
$9,510 NZD
$5,360 USD
View
B
Retailer 14
-
$11,497 NZD
$6,480 USD
View
B
Retailer 15
-
$12,897 NZD
$7,269 USD
View
Most Expensive
B
Do Amore Diamonds
23-685578140 · Oct 30
$13,414 NZD
$7,560 USD
View
15 more retailers have this diamond
Prices start from $1,210 NZDSave up to $12,204 NZD

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
$1,210 NZD