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Cushion|Lab Grown|IGI

1.18ct G VVS2 Cushion Lab Grown Diamond

VG • G/VVS2 • IGI LG578350616

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG578350616

Diamond specifications and retailer prices

From £176 GBP
$236 USD
As of October 30, 2026
Save £674 GBP (79%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £851 GBP at Michael Trio · As of October 31, 2026
View at Michael Trio

About this 1.18ct lab-grown cushion diamond

This 1.18ct lab-grown cushion sits in the classic one-carat band, graded G colour (near-colourless) and VVS2 clarity (very-very-slightly-included), with a very-good cut grade and certified by IGI LG578350616 or 578350616. Listed at 5 retailers as of October 30, 2026, with prices from £176 to £851, a £674 spread on the same certified stone. Michael Trio lists it at £851. 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

1.18
Carat
G
Colour
VVS2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.4°
Pavilion angle41.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG578350616
Dimensions6.21 × 6.00 × 4.26 mm
L/W Ratio1.03
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
6.21 mm6.00 mm1.18 ctG / VVS2
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG578350616
Side View
Table 61.0%Crown 37.4°Girdle: MED-STKPavilion 41.9°Culet: NoneDepth 71.0%

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 30
Current: £851 GBP|Low: £176 GBP|High: £851 GBP|Avg: £402 GBP
Michael Trio
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 28, 2026
Retailer 3£176 GBP
Retailer 4£266 GBP
Retailer 5£296 GBP
Retailer 2£425 GBP
Michael Trio£851 GBP

4 data points across 5 retailers

5 retailers£176 GBP to £851 GBP

A
Cheapest Retailer
-
£176 GBP
$236 USD
Final sale: no returns
A
Retailer 2
-
£266 GBP
$356 USD
View
A
Retailer 3
-
£296 GBP
HK$3,100 HKD
View
B+
Retailer 4
-
£425 GBP
$570 USD
View
Most Expensive
B
Michael Trio
1540452033 · Oct 31
£851 GBP
SGD 1,540 SGD
View
4 more retailers have this diamond
Prices start from £176 GBPSave up to £674 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
1.18ct Cushion
£176 GBP