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Cushion|Lab Grown|IGI

3.00ct G VS2 Cushion Lab Grown Diamond

EX • G/VS2 • IGI LG639430117

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG639430117

Diamond specifications and retailer prices

From £439 GBP
$588 USD
As of October 31, 2026
Save £3,039 GBP (87%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £3,478 GBP at Do Amore Diamonds · As of November 1, 2026
View at Do Amore Diamonds

About this 3ct lab-grown cushion diamond

This 3ct 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 LG639430117 or 639430117. Listed at 14 retailers as of October 31, 2026, with prices from £439 to £3,478, a £3,039 spread on the same certified stone. Do Amore Diamonds lists it at £3,478. 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

3.00
Carat
G
Colour
VS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.8°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG639430117
Dimensions8.38 × 8.00 × 5.54 mm
L/W Ratio1.05
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.38 mm8.00 mm3.00 ctG / VS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG639430117
Side View
Table 63.0%Crown 35.8°Girdle: MED-THKPavilion 39.5°Culet: NoneDepth 69.3%

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 31
Current: £3,478 GBP|Low: £439 GBP|High: £3,859 GBP|Avg: £1,578 GBP|-9.9%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 1, 2026
Retailer 9£439 GBP
Retailer 8£486 GBP
Retailer 6£560 GBP
Retailer 4£629 GBP
Retailer 12£750 GBP
Retailer 2£831 GBP
Retailer 3£1,558 GBP
Retailer 10£1,654 GBP
Retailer 11£1,802 GBP
Retailer 7£2,341 GBP
Retailer 5£3,269 GBP
Do Amore Diamonds£3,478 GBP

41 data points across 12 retailers

14 retailers£439 GBP to £3,478 GBP

A
Cheapest Retailer
-
£439 GBP
$588 USD
Final sale: no returns
Retailer 2
-
£486 GBP
$651 USD
View
Price last confirmed 16 days ago
A
Retailer 3
-
£560 GBP
$750 USD
View
A
Retailer 4
-
£596 GBP
$798 USD
View
B+
Retailer 5
-
£629 GBP
$843 USD
View
A
Retailer 6
-
£750 GBP
$1,005 USD
View
A
Retailer 7
-
£831 GBP
View
B
Retailer 8
-
£1,558 GBP
View
B
Retailer 9
-
£1,654 GBP
$2,216 USD
View
B
Retailer 10
-
£1,802 GBP
$2,414 USD
View
B
Retailer 11
-
£1,824 GBP
$2,444 USD
View
B
Retailer 12
-
£2,341 GBP
View
B
Retailer 13
-
£3,269 GBP
$4,380 USD
View
Most Expensive
B
Do Amore Diamonds
27-9C1E969BE · Nov 1
£3,478 GBP
$4,660 USD
View
13 more retailers have this diamond
Prices start from £439 GBPSave up to £3,039 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
£439 GBP