Cushion|Lab Grown|IGI

3.05ct E VS1 Cushion Lab Grown Diamond

ID • E/VS1 • IGI LG833671830

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG833671830

Diamond specifications and retailer prices

From $521 USD
As of October 27, 2026
Save $3,639 USD (87%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $4,160 USD at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

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 VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG833671830 or 833671830. Listed at 18 retailers as of October 27, 2026, with prices from $521 to $4,160, a $3,639 spread on the same certified stone. Brilliant Earth lists it at $4,160. 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
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle32°
OriginLab Grown
Grading LabIGI
CertificateIGI LG833671830
Dimensions8.51 × 8.04 × 5.09 mm
L/W Ratio1.06
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.51 mm8.04 mm3.05 ctE / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG833671830
Side View
Table 63.0%Crown 35.1°Girdle: MED-STKPavilion 32°Culet: NoneDepth 63.3%

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 27
Current: $4,160 USD|Low: $500 USD|High: $4,410 USD|Avg: $1,606 USD|+10.6%
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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
October 28, 2026
Retailer 9$521 USD
Retailer 16$627 USD
Retailer 18$662 USD
Retailer 11$720 USD
Retailer 12$875 USD
Retailer 4$902 USD
Retailer 13$951 USD
Retailer 17$1,228 USD
Retailer 15$1,242 USD
Retailer 7$1,295 USD
Retailer 3$1,339 USD
Retailer 8$1,885 USD
Retailer 5$2,040 USD
Retailer 14$2,122 USD
Retailer 6$2,159 USD
Retailer 10$2,238 USD
Retailer 2$2,484 USD
Brilliant Earth$4,160 USD

35 data points across 18 retailers

18 retailers$521 USD to $4,160 USD

A
Cheapest Retailer
-
$521 USD
Final sale: no returns
A
Retailer 2
-
$627 USD
HK$4,900 HKD
View
A
Retailer 3
-
$662 USD
£521 GBP
View
Price last confirmed 12 days ago
A
Retailer 4
-
$720 USD
View
A
Retailer 5
-
$875 USD
€833 EUR
View
B+
Retailer 6
-
$902 USD
View
A
Retailer 7
-
$951 USD
£749 GBP
View
A
Retailer 8
-
$1,228 USD
A$1,889 AUD
View
Price last confirmed 9 days ago
A
Retailer 9
-
$1,242 USD
ZAR 20,058 ZAR
View
A
Retailer 10
-
$1,295 USD
View
A
Retailer 11
-
$1,339 USD
View
B+
Retailer 12
-
$1,885 USD
View
B+
Retailer 13
-
$2,040 USD
View
B+
Retailer 14
-
$2,122 USD
£1,671 GBP
View
B
Retailer 15
-
$2,159 USD
View
B+
Retailer 16
-
$2,238 USD
A$3,443 AUD
View
Price last confirmed 20 days ago
B+
Retailer 17
-
$2,484 USD
View
Most Expensive
B
Brilliant Earth
21423458A · Oct 28
$4,160 USD
View
17 more retailers have this diamond
Prices start from $521 USDSave up to $3,639 USD

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
$521 USD