Cushion|Lab Grown|IGI

3.09ct D VS1 Cushion Lab Grown Diamond

ID • D/VS1 • IGI LG790677719

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG790677719

Diamond specifications and retailer prices

From €477 EUR
$533 USD
As of October 31, 2026
Save €3,399 EUR (88%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: €3,876 EUR at Queensmith · As of October 28, 2026
View at Queensmith

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 LG790677719 or 790677719. Listed at 15 retailers as of October 28, 2026, with prices from €477 to €3,876, a €3,399 spread on the same certified stone. Queensmith lists it at €3,876. 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
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle36.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG790677719
Dimensions10.16 × 7.68 × 5.21 mm
L/W Ratio1.32
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.16 mm7.68 mm3.09 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG790677719
Side View
Table 60.0%Crown 34.3°Girdle: MED-STKPavilion 36.9°Culet: NoneDepth 67.8%

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 31
Current: €3,876 EUR|Low: €349 EUR|High: €4,033 EUR|Avg: €1,664 EUR
Queensmith
Retailer 2
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Retailer 12
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Retailer 18
November 1, 2026
Retailer 10€349 EUR
Retailer 17€477 EUR
Retailer 6€542 EUR
Retailer 3€709 EUR
Retailer 11€733 EUR
Retailer 7€773 EUR
Retailer 12€916 EUR
Retailer 16€1,008 EUR
Retailer 13€1,235 EUR
Retailer 8€1,610 EUR
Retailer 9€1,875 EUR
Retailer 15€2,000 EUR
Retailer 18€2,022 EUR
Retailer 2€2,442 EUR
Retailer 5€2,547 EUR
Retailer 14€3,795 EUR
Retailer 4€3,815 EUR
Queensmith€3,876 EUR

18 data points across 18 retailers

15 retailers€477 EUR to €3,876 EUR

A
Cheapest Retailer
-
€477 EUR
$533 USD
Final sale: no returns
B+
Retailer 2
-
€709 EUR
$792 USD
View
A
Retailer 3
-
€733 EUR
£644 GBP
View
A
Retailer 4
-
€916 EUR
£806 GBP
View
A
Retailer 5
-
€1,008 EUR
$1,126 USD
View
A
Retailer 6
-
€1,235 EUR
A$2,123 AUD
View
Retailer 7
-
€1,980 EUR
$2,212 USD
View
Price last confirmed 8 days ago
B+
Retailer 8
-
€2,000 EUR
$2,234 USD
View
B+
Retailer 9
-
€2,022 EUR
$2,259 USD
View
Retailer 10
-
€2,240 EUR
A$3,850 AUD
View
Price last confirmed 121 days ago
B
Retailer 11
-
€2,442 EUR
£2,148 GBP
View
Retailer 12
-
€2,547 EUR
$2,845 USD
View
Price last confirmed 18 days ago
B
Retailer 13
-
€3,795 EUR
$4,240 USD
View
B
Retailer 14
-
€3,815 EUR
$4,262 USD
View
Most Expensive
B
Queensmith
LG790677719 · Oct 28
€3,876 EUR
£3,410 GBP
View
14 more retailers have this diamond
Prices start from €477 EURSave up to €3,399 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
€477 EUR