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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 €471 EUR
$526 USD
As of October 31, 2026
Save €5,356 EUR (92%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: €5,827 EUR 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 €471 to €5,827, a €5,356 spread on the same certified stone. Brilliant Earth lists it at €5,827. 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 31
Current: €5,827 EUR|Low: €471 EUR|High: €6,006 EUR|Avg: €1,594 EUR|-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 31, 2026
Retailer 7€471 EUR
Retailer 16€523 EUR
Retailer 17€658 EUR
Retailer 18€792 EUR
Retailer 8€817 EUR
Retailer 12€829 EUR
Retailer 3€857 EUR
Retailer 2€860 EUR
Retailer 11€1,104 EUR
Retailer 13€1,135 EUR
Retailer 5€1,291 EUR
Retailer 10€1,473 EUR
Retailer 6€1,707 EUR
Retailer 9€1,843 EUR
Retailer 14€1,923 EUR
Retailer 4€1,956 EUR
Retailer 15€2,569 EUR
Brilliant Earth€5,827 EUR

36 data points across 18 retailers

17 retailers€471 EUR to €5,827 EUR

A
Cheapest Retailer
-
€471 EUR
$526 USD
Final sale: no returns
Retailer 2
-
€523 EUR
$584 USD
View
Price last confirmed 15 days ago
Retailer 3
-
€658 EUR
£579 GBP
View
Price last confirmed 15 days ago
A
Retailer 4
-
€792 EUR
$885 USD
View
B+
Retailer 5
-
€817 EUR
$913 USD
View
A
Retailer 6
-
€829 EUR
View
A
Retailer 7
-
€857 EUR
$957 USD
View
A
Retailer 8
-
€860 EUR
£757 GBP
View
A
Retailer 9
-
€1,104 EUR
A$1,898 AUD
View
A
Retailer 10
-
€1,135 EUR
ZAR 20,487 ZAR
View
A
Retailer 11
-
€1,291 EUR
$1,442 USD
View
B+
Retailer 12
-
€1,707 EUR
$1,908 USD
View
B+
Retailer 13
-
€1,843 EUR
$2,059 USD
View
B+
Retailer 14
-
€1,923 EUR
£1,692 GBP
View
B+
Retailer 15
-
€1,956 EUR
$2,185 USD
View
Retailer 16
-
€2,569 EUR
$2,870 USD
View
Price last confirmed 13 days ago
Most Expensive
B
Brilliant Earth
18335227A · Oct 29
€5,827 EUR
$6,510 USD
View
16 more retailers have this diamond
Prices start from €471 EURSave up to €5,356 EUR

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
€471 EUR