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Cushion|Lab Grown|IGI

3.92ct G VS2 Cushion Lab Grown Diamond

ID • G/VS2 • IGI LG844625670

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG844625670

Diamond specifications and retailer prices

From £423 GBP
As of October 30, 2026
Save £1,251 GBP (75%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £2,046 GBP at Rare Carat · As of October 21, 2026
View at Rare Carat

About this 3.92ct lab-grown cushion diamond

This 3.92ct lab-grown cushion sits in the three to five carat band, graded G colour (near-colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG844625670 or 844625670. Listed at 8 retailers as of October 30, 2026, with a 296% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

3.92
Carat
G
Colour
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.2°
Pavilion angle38.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG844625670
Dimensions11.69 × 8.01 × 5.34 mm
L/W Ratio1.46
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.69 mm8.01 mm3.92 ctG / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG844625670
Side View
Table 59.0%Crown 34.2°Girdle: MED-STKPavilion 38.1°Culet: NoneDepth 66.7%

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 30
Current: £2,046 GBP|Low: £421 GBP|High: £2,069 GBP|Avg: £1,176 GBP|-1.1%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 30, 2026
Retailer 2£423 GBP
Retailer 3£601 GBP
Retailer 8£684 GBP
Retailer 7£1,309 GBP
Retailer 5£1,310 GBP
Retailer 4£1,466 GBP
Retailer 6£1,674 GBP
Rare Carat£2,046 GBP

16 data points across 8 retailers

8 retailers£423 GBP to £1,674 GBP

A
Cheapest Retailer
-
£423 GBP
A
Retailer 2
-
£601 GBP
€762 EUR
View
A
Retailer 3
-
£684 GBP
$911 USD
View
A
Retailer 4
-
£1,309 GBP
$1,743 USD
View
B+
Retailer 5
-
£1,310 GBP
$1,745 USD
View
B+
Retailer 6
-
£1,466 GBP
View
B+
Retailer 7
-
£1,674 GBP
$2,229 USD
View
Most Expensive
Rare Carat
LGLCU30-167990 · Oct 21
£2,046 GBP
$2,725 USD
View
Price last confirmed 9 days ago
7 more retailers have this diamond
Prices start from £423 GBPSave up to £1,251 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
3.92ct Cushion
£423 GBP