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Cushion|Lab Grown|IGI

1.80ct I VS1 Cushion Lab Grown Diamond

GD • I/VS1 • IGI LG601395034

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG601395034

Diamond specifications and retailer prices

From £205 GBP
$275 USD
As of November 1, 2026
Save £705 GBP (77%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £910 GBP at MOH London · As of November 1, 2026
View at MOH London

About this 1.8ct lab-grown cushion diamond

This 1.8ct lab-grown cushion sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and VS1 clarity (very-slightly-included), with a standard cut grade and certified by IGI LG601395034 or 601395034. Listed at 16 retailers as of November 1, 2026, with prices from £205 to £910, a £705 spread on the same certified stone. MOH London lists it at £910. 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

1.80
Carat
I
Colour
VS1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.3°
Pavilion angle38.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG601395034
Dimensions7.24 × 7.22 × 4.52 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
7.24 mm7.22 mm1.80 ctI / VS1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG601395034
Side View
Table 58.0%Crown 31.3°Girdle: STK-THKPavilion 38.9°Culet: NoneDepth 62.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: £910 GBP|Low: £183 GBP|High: £1,373 GBP|Avg: £579 GBP
MOH London
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
November 1, 2026
Retailer 3£205 GBP
Retailer 12£227 GBP
Retailer 2£297 GBP
Retailer 13£306 GBP
Retailer 7£369 GBP
Retailer 9£390 GBP
Retailer 14£422 GBP
Retailer 6£455 GBP
Retailer 11£571 GBP
Retailer 5£733 GBP
Retailer 10£810 GBP
Retailer 8£881 GBP
Retailer 4£887 GBP
MOH London£910 GBP

42 data points across 14 retailers

16 retailers£205 GBP to £910 GBP

A
Cheapest Retailer
-
£205 GBP
$275 USD
Final sale: no returns
Retailer 2
-
£227 GBP
$304 USD
View
Price last confirmed 7 days ago
B+
Retailer 3
-
£258 GBP
HK$2,700 HKD
View
A
Retailer 4
-
£297 GBP
View
B
Retailer 5
-
£306 GBP
$410 USD
View
B+
Retailer 6
-
£369 GBP
€471 EUR
View
B+
Retailer 7
-
£390 GBP
ZAR 8,447 ZAR
View
B+
Retailer 8
-
£422 GBP
$566 USD
View
B+
Retailer 9
-
£455 GBP
$610 USD
View
B+
Retailer 10
-
£571 GBP
$765 USD
View
B+
Retailer 11
-
£733 GBP
SGD 1,328 SGD
View
B+
Retailer 12
-
£769 GBP
$1,030 USD
View
B
Retailer 13
-
£810 GBP
$1,085 USD
View
B
Retailer 14
-
£881 GBP
$1,180 USD
View
B
Retailer 15
-
£887 GBP
View
Most Expensive
B
MOH London
LG601395034 · Nov 1
£910 GBP
View
15 more retailers have this diamond
Prices start from £205 GBPSave up to £705 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
1.80ct Cushion
£205 GBP