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Cushion|Lab Grown|IGI

3.01ct I VS1 Cushion Lab Grown Diamond

ID • I/VS1 • IGI LG581317816

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG581317816

Diamond specifications and retailer prices

From £327 GBP
$438 USD
As of October 30, 2026
Save £1,114 GBP (77%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £1,440 GBP at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 3.01ct lab-grown cushion diamond

This 3.01ct lab-grown cushion sits in the three to five carat band, graded I colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG581317816 or 581317816. Listed at 14 retailers as of October 30, 2026, with prices from £327 to £1,440, a £1,114 spread on the same certified stone. Brilliant Earth lists it at £1,440. 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

3.01
Carat
I
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle37.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG581317816
Dimensions9.58 × 7.64 × 5.21 mm
L/W Ratio1.25
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
9.58 mm7.64 mm3.01 ctI / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG581317816
Side View
Table 61.0%Crown 35.6°Girdle: Slightly ThickPavilion 37.4°Culet: NoneDepth 68.2%

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: Oct 30
Current: £1,440 GBP|Low: £327 GBP|High: £3,672 GBP|Avg: £1,233 GBP|-45.3%
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
Retailer 15
Retailer 16
Retailer 17
October 30, 2026
Retailer 6£327 GBP
Retailer 17£362 GBP
Retailer 13£489 GBP
Retailer 15£516 GBP
Retailer 2£575 GBP
Retailer 10£637 GBP
Retailer 12£786 GBP
Retailer 3£791 GBP
Retailer 4£807 GBP
Retailer 16£856 GBP
Retailer 7£984 GBP
Retailer 14£1,058 GBP
Retailer 5£1,192 GBP
Retailer 8£1,233 GBP
Retailer 11£1,424 GBP
Brilliant Earth£1,440 GBP
Retailer 9£3,672 GBP

31 data points across 17 retailers

14 retailers£327 GBP to £1,440 GBP

A
Cheapest Retailer
-
£327 GBP
$438 USD
Final sale: no returns
A
Retailer 2
-
£362 GBP
$485 USD
View
A
Retailer 3
-
£489 GBP
$655 USD
View
A
Retailer 4
-
£516 GBP
HK$5,400 HKD
View
B+
Retailer 5
-
£575 GBP
$771 USD
View
A
Retailer 6
-
£637 GBP
€813 EUR
View
A
Retailer 7
-
£786 GBP
ZAR 17,024 ZAR
View
A
Retailer 8
-
£807 GBP
$1,081 USD
View
A
Retailer 9
-
£856 GBP
$1,147 USD
View
B+
Retailer 10
-
£1,058 GBP
View
B+
Retailer 11
-
£1,192 GBP
$1,597 USD
View
B+
Retailer 12
-
£1,233 GBP
CA$2,295 CAD
View
B+
Retailer 13
-
£1,424 GBP
View
Most Expensive
B+
Brilliant Earth
16032501A · Oct 30
£1,440 GBP
$1,930 USD
View
13 more retailers have this diamond
Prices start from £327 GBPSave up to £1,114 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
3.01ct Cushion
£327 GBP