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Cushion|Lab Grown|IGI

3.00ct G SI1 Cushion Lab Grown Diamond

GD • G/SI1 • IGI LG567371565

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG567371565

Diamond specifications and retailer prices

From £310 GBP
$416 USD
As of November 1, 2026
Save £1,033 GBP (77%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £1,343 GBP at MOH London · As of November 1, 2026
View at MOH London

About this 3ct lab-grown cushion diamond

This 3ct lab-grown cushion sits in the three to five carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by IGI LG567371565 or 567371565. Listed at 7 retailers as of November 1, 2026, with prices from £310 to £1,343, a £1,033 spread on the same certified stone. MOH London lists it at £1,343. 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

3.00
Carat
G
Colour
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.3°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG567371565
Dimensions8.72 × 7.99 × 5.49 mm
L/W Ratio1.09
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
8.72 mm7.99 mm3.00 ctG / SI1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG567371565
Side View
Table 56.0%Crown 36.3°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 68.7%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: £1,343 GBP|Low: £222 GBP|High: £1,800 GBP|Avg: £782 GBP|-1.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 5£310 GBP
Retailer 4£344 GBP
Retailer 2£455 GBP
Retailer 8£544 GBP
Retailer 3£549 GBP
Retailer 6£577 GBP
Retailer 7£781 GBP
Retailer 10£970 GBP
MOH London£1,343 GBP
Retailer 9£1,800 GBP

13 data points across 10 retailers

7 retailers£310 GBP to £1,343 GBP

B+
Cheapest Retailer
-
£310 GBP
$416 USD
Final sale: no returns
Retailer 2
-
£344 GBP
$461 USD
View
Price last confirmed 7 days ago
B+
Retailer 3
-
£455 GBP
$610 USD
View
B
Retailer 4
-
£549 GBP
$735 USD
View
B+
Retailer 5
-
£577 GBP
$773 USD
View
B+
Retailer 6
-
£781 GBP
$1,047 USD
View
Most Expensive
B
MOH London
LG567371565 · Nov 1
£1,343 GBP
View
6 more retailers have this diamond
Prices start from £310 GBPSave up to £1,033 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.

B+
3.00ct Cushion
£310 GBP