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Cushion|Lab Grown|IGI

3.12ct E VVS1 Cushion Lab Grown Diamond

EX • E/VVS1 • IGI LG844625314

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG844625314

Diamond specifications and retailer prices

From £598 GBP
$801 USD
As of October 29, 2026
Save £432 GBP (42%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £1,030 GBP at 77 Diamonds · As of October 30, 2026
View at 77 Diamonds

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 LG844625314 or 844625314. Listed at 2 retailers as of October 29, 2026, with prices from £598 to £1,030, a £432 spread on the same certified stone. 77 Diamonds lists it at £1,030. 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
Colour
VVS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle35.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG844625314
Dimensions10.49 × 7.58 × 5.07 mm
L/W Ratio1.38
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.49 mm7.58 mm3.12 ctE / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG844625314
Side View
Table 60.0%Crown 36.5°Girdle: MED-THKPavilion 35.1°Culet: NoneDepth 66.9%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 29
Current: £1,030 GBP|Low: £598 GBP|High: £1,045 GBP|Avg: £864 GBP|-1.4%
77 Diamonds
Retailer 2
October 30, 2026
Retailer 2£598 GBP
77 Diamonds£1,030 GBP

17 data points across 2 retailers

2 retailers£598 GBP to £1,030 GBP

A
Cheapest Retailer
-
£598 GBP
$801 USD
Final sale: no returns
Most Expensive
A
77 Diamonds
CUSTVSSRNGPPDX · Oct 30
£1,030 GBP
View
1 more retailer has this diamond
Prices start from £598 GBPSave up to £432 GBP

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
3.12ct Cushion
£598 GBP