Cushion|Lab Grown|IGI

3.12ct E VVS1 Cushion Lab Grown Diamond

ID • E/VVS1 • IGI LG639466956

Shape and cutting style on the report: Cut cornered rectangular mixed cut

Certificate IGI LG639466956

Diamond specifications and retailer prices

From $4,965 USD
£3,910 GBP
As of October 29, 2026
1 retailer carries this diamond
Only listing: $4,965 USD at Diamond Quarter
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at Diamond Quarter

About this 3.12ct lab-grown cushion diamond

This 3.12ct lab-grown cushion sits in the three to five carat band, graded E colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG639466956 or 639466956. Listed at a single retailer as of October 29, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. 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

3.12
Carat
E
Color
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.6°
Pavilion angle47.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG639466956
Dimensions12.52 × 5.64 × 4.09 mm
L/W Ratio2.22
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.52 mm5.64 mm3.12 ctE / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG639466956
Side View
Table 54.0%Crown 31.6°Girdle: THK-VTKPavilion 47.6°Culet: LargeDepth 72.5%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 29
Current: $8,560 USD|Low: $4,766 USD|High: $8,580 USD|Avg: $6,288 USD|-0.2%
Retailer 1
Retailer 2
May 12, 2026
Retailer 2$4,766 USD
Retailer 1$8,560 USD

3 data points across 2 retailers

1 retailer

B
Diamond Quarter
3.12VVS1ELG56B191N · Oct 29
$4,965 USD
£3,910 GBP
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B
3.12ct Cushion
$4,965 USD