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Cushion|Lab Grown|IGI

3.55ct G VS1 Cushion Lab Grown Diamond

ID • G/VS1 • IGI LG601396477

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG601396477

Diamond specifications and retailer prices

From £650 GBP
$871 USD
As of October 29, 2026
Save £4,507 GBP (87%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £5,157 GBP at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 3.55ct lab-grown cushion diamond

This 3.55ct 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 LG601396477 or 601396477. Listed at 19 retailers as of October 29, 2026, with prices from £650 to £5,157, a £4,507 spread on the same certified stone. Do Amore Diamonds lists it at £5,157. 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

3.55
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.4°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG601396477
Dimensions9.12 × 8.75 × 5.91 mm
L/W Ratio1.04
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
9.12 mm8.75 mm3.55 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG601396477
Side View
Table 61.0%Crown 32.4°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 67.5%

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: Oct 29
Current: £5,157 GBP|Low: £523 GBP|High: £5,157 GBP|Avg: £1,773 GBP|+24.1%
Do Amore Diamonds
Retailer 2
Retailer 3
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Retailer 12
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Retailer 20
October 31, 2026
Retailer 8£543 GBP
Retailer 4£650 GBP
Retailer 11£715 GBP
Retailer 17£763 GBP
Retailer 13£806 GBP
Retailer 18£1,087 GBP
Retailer 2£1,143 GBP
Retailer 16£1,677 GBP
Retailer 7£1,681 GBP
Retailer 14£1,726 GBP
Retailer 10£1,865 GBP
Retailer 12£1,983 GBP
Retailer 19£2,247 GBP
Retailer 20£2,276 GBP
Retailer 9£2,478 GBP
Retailer 5£2,648 GBP
Retailer 3£2,652 GBP
Retailer 15£2,789 GBP
Retailer 6£4,254 GBP
Do Amore Diamonds£5,157 GBP

36 data points across 20 retailers

19 retailers£650 GBP to £5,157 GBP

Retailer 1
-
£543 GBP
$728 USD
Price last confirmed 19 days ago
A
Retailer 2
-
£650 GBP
$871 USD
View
Final sale: no returns
Retailer 3
-
£715 GBP
View
Price last confirmed 38 days ago
A
Retailer 4
-
£763 GBP
$1,023 USD
View
A
Retailer 5
-
£806 GBP
$1,080 USD
View
B+
Retailer 6
-
£1,087 GBP
$1,457 USD
View
B+
Retailer 7
-
£1,143 GBP
View
Retailer 8
-
£1,677 GBP
A$3,457 AUD
View
Price last confirmed 10 days ago
Retailer 9
-
£1,681 GBP
$2,252 USD
View
Price last confirmed 18 days ago
B
Retailer 10
-
£1,726 GBP
ZAR 37,356 ZAR
View
Retailer 11
-
£1,865 GBP
View
Price last confirmed 20 days ago
B
Retailer 12
-
£2,247 GBP
$3,011 USD
View
B
Retailer 13
-
£2,276 GBP
$3,050 USD
View
B
Retailer 14
-
£2,478 GBP
$3,321 USD
View
B
Retailer 15
-
£2,648 GBP
SGD 4,794 SGD
View
B
Retailer 16
-
£2,652 GBP
$3,554 USD
View
B
Retailer 17
-
£2,789 GBP
View
Retailer 18
-
£4,254 GBP
$5,700 USD
View
Price last confirmed 29 days ago
Most Expensive
B
Do Amore Diamonds
27-84D3CEE92 · Oct 31
£5,157 GBP
$6,910 USD
View
18 more retailers have this diamond
Prices start from £650 GBPSave up to £4,507 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
3.55ct Cushion
£650 GBP