Cushion|Lab Grown|IGI

3.00ct D VS1 Cushion Lab Grown Diamond

VG • D/VS1 • IGI LG830669948

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

Certificate IGI LG830669948

Diamond specifications and retailer prices

From £455 GBP
$609 USD
As of October 30, 2026
Save £3,195 GBP (88%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £3,650 GBP at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 3ct lab-grown cushion diamond

This 3ct lab-grown cushion sits in the three to five carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG830669948 or 830669948. Listed at 19 retailers as of October 30, 2026, with prices from £455 to £3,650, a £3,195 spread on the same certified stone. Brilliant Earth lists it at £3,650. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

3.00
Carat
D
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31°
Pavilion angle34.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG830669948
Dimensions8.36 × 8.18 × 5.09 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
8.36 mm8.18 mm3.00 ctD / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG830669948
Side View
Table 65.0%Crown 31°Girdle: STK-THKPavilion 34.8°Culet: NoneDepth 62.2%

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: £3,650 GBP|Low: £455 GBP|High: £4,717 GBP|Avg: £1,338 GBP|-22.6%
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 6£455 GBP
Retailer 4£504 GBP
Retailer 2£582 GBP
Retailer 5£675 GBP
Retailer 9£738 GBP
Retailer 8£785 GBP
Retailer 7£1,064 GBP
Retailer 11£1,094 GBP
Retailer 14£1,129 GBP
Retailer 12£1,575 GBP
Retailer 3£1,793 GBP
Retailer 13£2,086 GBP
Retailer 10£2,114 GBP
Brilliant Earth£3,650 GBP

43 data points across 14 retailers

19 retailers£455 GBP to £3,650 GBP

A
Cheapest Retailer
-
£455 GBP
$609 USD
Final sale: no returns
Retailer 2
-
£504 GBP
$675 USD
View
Price last confirmed 15 days ago
A
Retailer 3
-
£582 GBP
$780 USD
View
A
Retailer 4
-
£675 GBP
$905 USD
View
A
Retailer 5
-
£738 GBP
€942 EUR
View
A
Retailer 6
-
£785 GBP
View
B+
Retailer 7
-
£1,040 GBP
$1,393 USD
View
B+
Retailer 8
-
£1,064 GBP
A$2,193 AUD
View
A
Retailer 9
-
£1,094 GBP
ZAR 23,679 ZAR
View
B+
Retailer 10
-
£1,129 GBP
$1,513 USD
View
B+
Retailer 11
-
£1,467 GBP
View
B+
Retailer 12
-
£1,575 GBP
$2,110 USD
View
B+
Retailer 13
-
£1,635 GBP
$2,190 USD
View
B
Retailer 14
-
£1,711 GBP
$2,292 USD
View
Retailer 15
-
£1,793 GBP
A$3,696 AUD
View
Price last confirmed 24 days ago
Retailer 16
-
£2,086 GBP
$2,795 USD
View
Price last confirmed 10 days ago
B
Retailer 17
-
£2,114 GBP
View
B
Retailer 18
-
£3,232 GBP
View
Most Expensive
B
Brilliant Earth
21271623A · Oct 30
£3,650 GBP
$4,890 USD
View
18 more retailers have this diamond
Prices start from £455 GBPSave up to £3,195 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
3.00ct Cushion
£455 GBP