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Cushion|Lab Grown|IGI

1.90ct G VS1 Cushion Lab Grown Diamond

VG • G/VS1 • IGI LG728521919

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

Certificate IGI LG728521919

Diamond specifications and retailer prices

From £455 GBP
€580 EUR
As of October 31, 2026
Save £516 GBP (53%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £1,174 GBP at MOH London · As of October 18, 2026
View at MOH London

About this 1.9ct lab-grown cushion diamond

This 1.9ct lab-grown cushion sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG728521919 or 728521919. Listed at 9 retailers as of October 31, 2026, with a 114% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.90
Carat
G
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45°
Pavilion angle34.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG728521919
Dimensions6.99 × 6.88 × 4.79 mm
L/W Ratio1.02
Girdle conditionFaceted
Culet sizePointed
Top View
6.99 mm6.88 mm1.90 ctG / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG728521919
Side View
Table 60.0%Crown 45°Girdle: MED-THKPavilion 34.2°Culet: NoneDepth 69.6%

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 31
Current: £1,174 GBP|Low: £442 GBP|High: £1,182 GBP|Avg: £648 GBP|+0.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 31, 2026
Retailer 2£455 GBP
Retailer 5£474 GBP
Retailer 6£496 GBP
Retailer 3£515 GBP
Retailer 7£554 GBP
Retailer 4£918 GBP
MOH London£1,174 GBP

42 data points across 7 retailers

9 retailers£455 GBP to £971 GBP

Retailer 1
-
£325 GBP
HK$3,400 HKD
Price last confirmed 57 days ago
A
Retailer 2
-
£455 GBP
€580 EUR
View
A
Retailer 3
-
£474 GBP
$635 USD
View
B+
Retailer 4
-
£496 GBP
$664 USD
View
A
Retailer 5
-
£515 GBP
View
B+
Retailer 6
-
£554 GBP
$742 USD
View
B
Retailer 7
-
£918 GBP
$1,230 USD
View
B
Retailer 8
-
£971 GBP
$1,301 USD
View
Most Expensive
MOH London
LG728521919 · Oct 18
£1,174 GBP
View
Price last confirmed 13 days ago
8 more retailers have this diamond
Prices start from £455 GBPSave up to £516 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
1.90ct Cushion
£455 GBP