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Cushion|Lab Grown|IGI

3.09ct D VS1 Cushion Lab Grown Diamond

ID • D/VS1 • IGI LG784639101

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

Certificate IGI LG784639101

Diamond specifications and retailer prices

From $526 USD
As of October 29, 2026
Save $5,984 USD (92%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $6,510 USD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 3.09ct lab-grown cushion diamond

This 3.09ct lab-grown cushion sits in the three to five carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG784639101 or 784639101. Listed at 17 retailers as of October 29, 2026, with prices from $526 to $6,510, a $5,984 spread on the same certified stone. Brilliant Earth lists it at $6,510. 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

3.09
Carat
D
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.2°
Pavilion angle39.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG784639101
Dimensions8.52 × 8.38 × 5.57 mm
L/W Ratio1.02
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.52 mm8.38 mm3.09 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG784639101
Side View
Table 63.0%Crown 36.2°Girdle: MED-THKPavilion 39.3°Culet: NoneDepth 66.5%

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 29
Current: $6,510 USD|Low: $526 USD|High: $6,710 USD|Avg: $1,801 USD|-3.0%
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 29, 2026
Retailer 7$526 USD
Retailer 16$584 USD
Retailer 17$735 USD
Retailer 18$885 USD
Retailer 8$913 USD
Retailer 11$926 USD
Retailer 3$957 USD
Retailer 2$966 USD
Retailer 14$1,243 USD
Retailer 12$1,268 USD
Retailer 5$1,442 USD
Retailer 10$1,646 USD
Retailer 6$1,908 USD
Retailer 9$2,059 USD
Retailer 13$2,149 USD
Retailer 4$2,185 USD
Retailer 15$2,870 USD
Brilliant Earth$6,510 USD

36 data points across 18 retailers

17 retailers$526 USD to $6,510 USD

A
Cheapest Retailer
-
$526 USD
Final sale: no returns
A
Retailer 2
-
$584 USD
View
Price last confirmed 12 days ago
A
Retailer 3
-
$735 USD
£579 GBP
View
Price last confirmed 12 days ago
A
Retailer 4
-
$885 USD
View
B+
Retailer 5
-
$913 USD
View
A
Retailer 6
-
$926 USD
€882 EUR
View
A
Retailer 7
-
$957 USD
View
A
Retailer 8
-
$966 USD
£761 GBP
View
A
Retailer 9
-
$1,243 USD
A$1,912 AUD
View
Price last confirmed 9 days ago
A
Retailer 10
-
$1,268 USD
ZAR 20,487 ZAR
View
A
Retailer 11
-
$1,442 USD
View
B+
Retailer 12
-
$1,908 USD
View
B+
Retailer 13
-
$2,059 USD
View
B+
Retailer 14
-
$2,149 USD
£1,692 GBP
View
B+
Retailer 15
-
$2,185 USD
View
B+
Retailer 16
-
$2,870 USD
View
Price last confirmed 10 days ago
Most Expensive
B
Brilliant Earth
18335227A · Oct 29
$6,510 USD
View
16 more retailers have this diamond
Prices start from $526 USDSave up to $5,984 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
3.09ct Cushion
$526 USD