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Cushion|Lab Grown|IGI

3.03ct J VS1 Cushion Lab Grown Diamond

EX • J/VS1 • IGI LG12910906

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG12910906

Diamond specifications and retailer prices

From £604 GBP
As of November 6, 2026
Save £2,504 GBP (81%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £3,108 GBP at Do Amore Diamonds · As of November 6, 2026
View at Do Amore Diamonds

About this 3.03ct lab-grown cushion diamond

This 3.03ct lab-grown cushion sits in the three to five carat band, graded J colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG12910906 or 12910906. Listed at 7 retailers as of November 6, 2026, with prices from £604 to £3,108, a £2,504 spread on the same certified stone. Do Amore Diamonds lists it at £3,108. 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

3.03
Carat
J
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle39.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG12910906
Dimensions8.48 × 8.42 × 5.63 mm
L/W Ratio1.01
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
8.48 mm8.42 mm3.03 ctJ / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG12910906
Side View
Table 60.0%Crown 36.5°Girdle: THN-UNDPavilion 39.9°Culet: NoneDepth 66.9%

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: Nov 6
Current: £2,944 GBP|Low: £280 GBP|High: £2,944 GBP|Avg: £1,132 GBP
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 5, 2026
Retailer 6£280 GBP
Retailer 7£604 GBP
Retailer 3£605 GBP
Retailer 4£655 GBP
Retailer 5£678 GBP
Retailer 2£1,995 GBP
Do Amore Diamonds£2,944 GBP

8 data points across 7 retailers

7 retailers£604 GBP to £3,108 GBP

A
Cheapest Retailer
-
£604 GBP
A
Retailer 2
-
£605 GBP
View
A
Retailer 3
-
£655 GBP
View
B+
Retailer 4
-
£678 GBP
View
B+
Retailer 5
-
£1,995 GBP
View
B
Retailer 6
-
£2,944 GBP
View
Most Expensive
B
Do Amore Diamonds
27-ECAC61584 · Nov 6
£3,108 GBP
$4,160 USD
View
6 more retailers have this diamond
Prices start from £604 GBPSave up to £2,504 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
3.03ct Cushion
£604 GBP