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Cushion|Lab Grown|IGI

4.15ct E VS2 Cushion Lab Grown Diamond

ID • E/VS2 • IGI LG678564258

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG678564258

Diamond specifications and retailer prices

From $1,221 AUD
$858 USD
As of October 29, 2026
Save $6,694 AUD (85%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $7,915 AUD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 4.15ct lab-grown cushion diamond

This 4.15ct lab-grown cushion sits in the three to five carat band, graded E colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG678564258 or 678564258. Listed at 12 retailers as of October 29, 2026, with prices from $1,221 to $7,915, a $6,694 spread on the same certified stone. Brilliant Earth lists it at $7,915. 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

4.15
Carat
E
Colour
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle37.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG678564258
Dimensions10.81 × 8.69 × 5.70 mm
L/W Ratio1.24
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.81 mm8.69 mm4.15 ctE / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG678564258
Side View
Table 64.0%Crown 34.3°Girdle: STK-THKPavilion 37.8°Culet: NoneDepth 65.6%

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: $7,915 AUD|Low: $871 AUD|High: $9,766 AUD|Avg: $3,574 AUD|-1.6%
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
October 30, 2026
Retailer 13$1,221 AUD
Retailer 12$1,267 AUD
Retailer 10$1,523 AUD
Retailer 2$1,941 AUD
Retailer 7$2,030 AUD
Retailer 11$2,049 AUD
Retailer 4$2,474 AUD
Retailer 9$3,927 AUD
Retailer 14$4,077 AUD
Retailer 6$4,295 AUD
Retailer 3$4,374 AUD
Retailer 8$4,755 AUD
Brilliant Earth$7,915 AUD
Retailer 5$9,766 AUD

42 data points across 14 retailers

12 retailers$1,221 AUD to $7,915 AUD

A
Cheapest Retailer
-
$1,221 AUD
$858 USD
Final sale: no returns
Retailer 2
-
$1,267 AUD
$890 USD
View
Price last confirmed 13 days ago
A
Retailer 3
-
$1,523 AUD
$1,070 USD
View
A
Retailer 4
-
$1,941 AUD
£1,074 GBP
View
A
Retailer 5
-
$2,030 AUD
€1,358 EUR
View
A
Retailer 6
-
$2,049 AUD
$1,439 USD
View
A
Retailer 7
-
$2,474 AUD
$1,738 USD
View
B+
Retailer 8
-
$3,927 AUD
£2,172 GBP
View
B+
Retailer 9
-
$4,077 AUD
$2,864 USD
View
B+
Retailer 10
-
$4,374 AUD
$3,073 USD
View
B+
Retailer 11
-
$4,755 AUD
£2,630 GBP
View
Most Expensive
B
Brilliant Earth
13097430A · Oct 30
$7,915 AUD
$5,560 USD
View
11 more retailers have this diamond
Prices start from $1,221 AUDSave up to $6,694 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
4.15ct Cushion
$1,221 AUD