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Cushion|Lab Grown|IGI

3.08ct G VS1 Cushion Lab Grown Diamond

ID • G/VS1 • IGI LG571310031

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG571310031

Diamond specifications and retailer prices

From £513 GBP
$687 USD
As of October 29, 2026
Save £3,092 GBP (86%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £3,605 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 3.08ct lab-grown cushion diamond

This 3.08ct lab-grown cushion sits in the three to five carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG571310031 or 571310031. Listed at 15 retailers as of October 29, 2026, with prices from £513 to £3,605, a £3,092 spread on the same certified stone. Brilliant Earth lists it at £3,605. 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

3.08
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle33.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG571310031
Dimensions7.55 × 9.86 × 4.91 mm
L/W Ratio1.31
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
7.55 mm9.86 mm3.08 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG571310031
Side View
Table 60.5%Crown 34.3°Girdle: MED-STKPavilion 33.8°Culet: NoneDepth 65.0%

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 29
Current: £3,605 GBP|Low: £452 GBP|High: £3,709 GBP|Avg: £1,316 GBP
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
October 31, 2026
Retailer 4£513 GBP
Retailer 12£568 GBP
Retailer 10£657 GBP
Retailer 3£770 GBP
Retailer 13£848 GBP
Retailer 11£870 GBP
Retailer 2£890 GBP
Retailer 7£1,200 GBP
Retailer 9£1,234 GBP
Retailer 14£1,649 GBP
Retailer 6£1,836 GBP
Retailer 5£1,876 GBP
Retailer 8£2,480 GBP
Brilliant Earth£3,605 GBP

42 data points across 14 retailers

15 retailers£513 GBP to £3,605 GBP

A
Cheapest Retailer
-
£513 GBP
$687 USD
Final sale: no returns
Retailer 2
-
£568 GBP
$761 USD
View
Price last confirmed 14 days ago
A
Retailer 3
-
£657 GBP
$880 USD
View
A
Retailer 4
-
£770 GBP
$1,032 USD
View
A
Retailer 5
-
£848 GBP
$1,136 USD
View
A
Retailer 6
-
£870 GBP
$1,166 USD
View
A
Retailer 7
-
£890 GBP
View
B+
Retailer 8
-
£1,200 GBP
A$2,474 AUD
View
B+
Retailer 9
-
£1,234 GBP
ZAR 26,705 ZAR
View
B+
Retailer 10
-
£1,649 GBP
View
B+
Retailer 11
-
£1,825 GBP
HK$19,100 HKD
View
B+
Retailer 12
-
£1,836 GBP
$2,460 USD
View
B
Retailer 13
-
£1,876 GBP
$2,514 USD
View
B
Retailer 14
-
£2,480 GBP
View
Most Expensive
B
Brilliant Earth
17969083A · Oct 29
£3,605 GBP
$4,830 USD
View
14 more retailers have this diamond
Prices start from £513 GBPSave up to £3,092 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
3.08ct Cushion
£513 GBP