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Cushion|Lab Grown|IGI

3.54ct G VS1 Cushion Lab Grown Diamond

EX • G/VS1 • IGI LG651437781

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG651437781

Diamond specifications and retailer prices

From £559 GBP
$749 USD
As of October 31, 2026
Save £3,874 GBP (87%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £4,433 GBP at Do Amore Diamonds · As of October 30, 2026
View at Do Amore Diamonds

About this 3.54ct lab-grown cushion diamond

This 3.54ct 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 LG651437781 or 651437781. Listed at 17 retailers as of October 30, 2026, with prices from £559 to £4,433, a £3,874 spread on the same certified stone. Do Amore Diamonds lists it at £4,433. 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

3.54
Carat
G
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.8°
Pavilion angle36.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG651437781
Dimensions8.66 × 8.41 × 5.55 mm
L/W Ratio1.03
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.66 mm8.41 mm3.54 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG651437781
Side View
Table 64.0%Crown 37.8°Girdle: MED-STKPavilion 36.3°Culet: NoneDepth 66.0%

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 31
Current: £4,433 GBP|Low: £559 GBP|High: £4,433 GBP|Avg: £1,616 GBP
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
Retailer 13
Retailer 14
Retailer 15
October 31, 2026
Retailer 15£559 GBP
Retailer 13£579 GBP
Retailer 8£713 GBP
Retailer 14£765 GBP
Retailer 7£819 GBP
Retailer 5£877 GBP
Retailer 2£1,026 GBP
Retailer 9£1,444 GBP
Retailer 11£1,485 GBP
Retailer 4£1,975 GBP
Retailer 6£1,990 GBP
Retailer 3£1,992 GBP
Retailer 10£2,524 GBP
Retailer 12£3,582 GBP
Do Amore Diamonds£4,433 GBP

44 data points across 15 retailers

17 retailers£559 GBP to £4,433 GBP

A
Cheapest Retailer
-
£559 GBP
$749 USD
Final sale: no returns
Retailer 2
-
£579 GBP
$776 USD
View
Price last confirmed 14 days ago
A
Retailer 3
-
£713 GBP
$955 USD
View
A
Retailer 4
-
£743 GBP
$995 USD
View
Retailer 5
-
£765 GBP
View
Price last confirmed 14 days ago
A
Retailer 6
-
£819 GBP
$1,097 USD
View
A
Retailer 7
-
£877 GBP
$1,175 USD
View
A
Retailer 8
-
£1,026 GBP
View
B+
Retailer 9
-
£1,444 GBP
A$2,976 AUD
View
B+
Retailer 10
-
£1,485 GBP
ZAR 32,135 ZAR
View
B+
Retailer 11
-
£1,975 GBP
$2,646 USD
View
B+
Retailer 12
-
£1,990 GBP
View
B+
Retailer 13
-
£1,992 GBP
$2,669 USD
View
B
Retailer 14
-
£2,288 GBP
$3,065 USD
View
B
Retailer 15
-
£2,524 GBP
View
B
Retailer 16
-
£3,582 GBP
$4,800 USD
View
Most Expensive
B
Do Amore Diamonds
27-3471A2C21 · Oct 30
£4,433 GBP
$5,940 USD
View
16 more retailers have this diamond
Prices start from £559 GBPSave up to £3,874 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
3.54ct Cushion
£559 GBP