Cushion|Lab Grown|IGI

3.10ct H VVS2 Cushion Lab Grown Diamond

EX • H/VVS2 • IGI LG825620421

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

Certificate IGI LG825620421

Diamond specifications and retailer prices

From £283 GBP
$379 USD
As of October 31, 2026
Save £304 GBP (52%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £586 GBP at 77 Diamonds · As of October 31, 2026
View at 77 Diamonds

About this 3.1ct lab-grown cushion diamond

This 3.1ct lab-grown cushion sits in the three to five carat band, graded H colour (near-colourless) and VVS2 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG825620421 or 825620421. Listed at 2 retailers as of October 31, 2026, with prices from £283 to £586, a £304 spread on the same certified stone. 77 Diamonds lists it at £586. 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

3.10
Carat
H
Colour
VVS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG825620421
Dimensions8.69 × 8.48 × 5.65 mm
L/W Ratio1.02
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.69 mm8.48 mm3.10 ctH / VVS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG825620421
Side View
Table 61.0%Crown 34.9°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 66.6%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 31
Current: £586 GBP|Low: £283 GBP|High: £1,142 GBP|Avg: £685 GBP|-8.9%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 31, 2026
Retailer 2£283 GBP
Retailer 3£459 GBP
Retailer 6£533 GBP
77 Diamonds£586 GBP
Retailer 4£790 GBP
Retailer 5£1,142 GBP

39 data points across 6 retailers

2 retailers£283 GBP to £586 GBP

A
Cheapest Retailer
-
£283 GBP
$379 USD
Final sale: no returns
Most Expensive
A
77 Diamonds
CUSTVSZQ7TXVXV · Oct 31
£586 GBP
View
1 more retailer has this diamond
Prices start from £283 GBPSave up to £304 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
3.10ct Cushion
£283 GBP