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Cushion|Lab Grown|IGI

3.15ct G VS1 Cushion Lab Grown Diamond

ID • G/VS1 • IGI LG668409650

Shape and cutting style on the report: Cushion modified brilliant cut

Certificate IGI LG668409650

Diamond specifications and retailer prices

From €380 EUR
$425 USD
As of November 1, 2026
Save €2,126 EUR (85%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: €2,506 EUR at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 3.15ct lab-grown cushion diamond

This 3.15ct lab-grown cushion sits in the three to five carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG668409650 or 668409650. Listed at 14 retailers as of October 31, 2026, with prices from €380 to €2,506, a €2,126 spread on the same certified stone. Brilliant Earth lists it at €2,506. 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

3.15
Carat
G
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle37.6°
Pavilion angle34.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG668409650
Dimensions9.20 × 7.49 × 5.34 mm
L/W Ratio1.23
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.20 mm7.49 mm3.15 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG668409650
Side View
Table 58.0%Crown 37.6°Girdle: STK-VTKPavilion 34.2°Culet: NoneDepth 71.3%

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: Nov 1
Current: €2,506 EUR|Low: €380 EUR|High: €2,596 EUR|Avg: €1,064 EUR
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
November 1, 2026
Retailer 6€380 EUR
Retailer 5€427 EUR
Retailer 9€658 EUR
Retailer 13€672 EUR
Retailer 11€699 EUR
Retailer 8€737 EUR
Retailer 7€756 EUR
Retailer 4€927 EUR
Retailer 10€982 EUR
Retailer 14€1,390 EUR
Retailer 12€1,578 EUR
Retailer 3€1,637 EUR
Retailer 2€1,647 EUR
Brilliant Earth€2,506 EUR

44 data points across 14 retailers

14 retailers€380 EUR to €2,506 EUR

A
Cheapest Retailer
-
€380 EUR
$425 USD
Final sale: no returns
Retailer 2
-
€427 EUR
$477 USD
View
Price last confirmed 7 days ago
A
Retailer 3
-
€658 EUR
$735 USD
View
B+
Retailer 4
-
€672 EUR
$751 USD
View
A
Retailer 5
-
€699 EUR
$781 USD
View
A
Retailer 6
-
€737 EUR
View
A
Retailer 7
-
€756 EUR
£665 GBP
View
A
Retailer 8
-
€927 EUR
ZAR 16,725 ZAR
View
A
Retailer 9
-
€982 EUR
$1,097 USD
View
B+
Retailer 10
-
€1,390 EUR
$1,553 USD
View
B+
Retailer 11
-
€1,578 EUR
$1,763 USD
View
B+
Retailer 12
-
€1,637 EUR
£1,440 GBP
View
B+
Retailer 13
-
€1,647 EUR
£1,449 GBP
View
Most Expensive
B
Brilliant Earth
13160590A · Oct 31
€2,506 EUR
$2,800 USD
View
13 more retailers have this diamond
Prices start from €380 EURSave up to €2,126 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
3.15ct Cushion
€380 EUR