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Cushion|Lab Grown|IGI

1.35ct G VS1 Cushion Lab Grown Diamond

VG • G/VS1 • IGI LG520200181

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

Certificate IGI LG520200181

Diamond specifications and retailer prices

From £316 GBP
As of November 5, 2026
Save £1,371 GBP (81%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £1,687 GBP at Do Amore Diamonds · As of November 5, 2026
View at Do Amore Diamonds

About this 1.35ct lab-grown cushion diamond

This 1.35ct lab-grown cushion sits in the one-and-a-quarter to one-and-a-half carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG520200181 or 520200181. Listed at 14 retailers as of November 5, 2026, with prices from £316 to £1,687, a £1,371 spread on the same certified stone. Do Amore Diamonds lists it at £1,687. 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

1.35
Carat
G
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG520200181
Dimensions6.29 × 6.26 × 4.35 mm
L/W Ratio1.00
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
6.29 mm6.26 mm1.35 ctG / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG520200181
Side View
Table 61.0%Crown 34.5°Girdle: STK-VTKPavilion 40°Culet: NoneDepth 69.5%

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: Nov 5
Current: £1,687 GBP|Low: £185 GBP|High: £1,687 GBP|Avg: £579 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
November 5, 2026
Retailer 14£236 GBP
Retailer 13£316 GBP
Retailer 8£318 GBP
Retailer 5£345 GBP
Retailer 12£357 GBP
Retailer 15£395 GBP
Retailer 11£449 GBP
Retailer 2£455 GBP
Retailer 3£494 GBP
Retailer 4£634 GBP
Retailer 9£639 GBP
Retailer 6£792 GBP
Retailer 7£834 GBP
Retailer 10£1,043 GBP
Do Amore Diamonds£1,687 GBP

35 data points across 15 retailers

14 retailers£316 GBP to £1,687 GBP

Retailer 1
-
£236 GBP
Price last confirmed 11 days ago
A
Retailer 2
-
£316 GBP
View
B+
Retailer 3
-
£318 GBP
View
B+
Retailer 4
-
£345 GBP
View
B+
Retailer 5
-
£357 GBP
View
B+
Retailer 6
-
£395 GBP
View
B+
Retailer 7
-
£449 GBP
View
B+
Retailer 8
-
£455 GBP
View
B+
Retailer 9
-
£494 GBP
View
B
Retailer 10
-
£634 GBP
View
B+
Retailer 11
-
£639 GBP
View
B
Retailer 12
-
£834 GBP
View
C
Retailer 13
-
£1,043 GBP
View
Most Expensive
B
Do Amore Diamonds
27-8688D3DF6 · Nov 5
£1,687 GBP
$2,270 USD
View
13 more retailers have this diamond
Prices start from £316 GBPSave up to £1,371 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
1.35ct Cushion
£316 GBP