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Cushion|Lab Grown|IGI

3.09ct D VS1 Cushion Lab Grown Diamond

EX • D/VS1 • IGI LG689542466

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

Certificate IGI LG689542466

Diamond specifications and retailer prices

From €519 EUR
$580 USD
As of October 29, 2026
Save €5,308 EUR (91%) vs most expensive(unlock to see where)
20 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 LG689542466 or 689542466. Listed at 20 retailers as of October 29, 2026, with prices from €519 to €5,827, a €5,308 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.4°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG689542466
Dimensions8.24 × 8.24 × 5.65 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
8.24 mm8.24 mm3.09 ctD / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG689542466
Side View
Table 65.0%Crown 37.4°Girdle: MED-THKPavilion 40.8°Culet: NoneDepth 68.6%

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: €5,827 EUR|Low: €508 EUR|High: €5,827 EUR|Avg: €1,528 EUR
Brilliant Earth
Retailer 2
Retailer 3
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Retailer 20
October 30, 2026
Retailer 20€519 EUR
Retailer 11€564 EUR
Retailer 9€630 EUR
Retailer 4€750 EUR
Retailer 15€752 EUR
Retailer 19€829 EUR
Retailer 14€866 EUR
Retailer 2€891 EUR
Retailer 13€1,214 EUR
Retailer 16€1,237 EUR
Retailer 17€1,304 EUR
Retailer 18€1,347 EUR
Retailer 12€1,651 EUR
Retailer 8€1,822 EUR
Retailer 3€1,870 EUR
Retailer 6€1,977 EUR
Retailer 5€2,060 EUR
Retailer 10€2,208 EUR
Retailer 7€2,413 EUR
Brilliant Earth€5,827 EUR

35 data points across 20 retailers

20 retailers€519 EUR to €5,827 EUR

A
Cheapest Retailer
-
€519 EUR
$580 USD
Final sale: no returns
Retailer 2
-
€564 EUR
$630 USD
View
Price last confirmed 21 days ago
A
Retailer 3
-
€630 EUR
HK$5,500 HKD
View
B+
Retailer 4
-
€750 EUR
$838 USD
View
A
Retailer 5
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€752 EUR
$840 USD
View
A
Retailer 6
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€829 EUR
$926 USD
View
A
Retailer 7
-
€866 EUR
View
A
Retailer 8
-
€891 EUR
£784 GBP
View
A
Retailer 9
-
€1,214 EUR
A$2,087 AUD
View
A
Retailer 10
-
€1,237 EUR
ZAR 22,328 ZAR
View
A
Retailer 11
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€1,304 EUR
$1,457 USD
View
A
Retailer 12
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€1,347 EUR
$1,505 USD
View
Retailer 13
-
€1,651 EUR
£1,452 GBP
View
Price last confirmed 19 days ago
B+
Retailer 14
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€1,822 EUR
SGD 2,751 SGD
View
B+
Retailer 15
-
€1,870 EUR
$2,089 USD
View
B+
Retailer 16
-
€1,977 EUR
$2,208 USD
View
B+
Retailer 17
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€2,060 EUR
$2,301 USD
View
Retailer 18
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€2,208 EUR
A$3,795 AUD
View
Price last confirmed 24 days ago
B+
Retailer 19
-
€2,413 EUR
£2,123 GBP
View
Most Expensive
B
Brilliant Earth
20259914A · Oct 29
€5,827 EUR
$6,510 USD
View
19 more retailers have this diamond
Prices start from €519 EURSave up to €5,308 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
€519 EUR