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Cushion|Lab Grown|IGI

2.15ct I SI1 Cushion Lab Grown Diamond

GD • I/SI1 • IGI LG436045078

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG436045078

Diamond specifications and retailer prices

From £2,184 GBP
$2,926 USD
As of October 31, 2026
Save £3,963 GBP (64%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £6,147 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 2.15ct lab-grown cushion diamond

This 2.15ct lab-grown cushion sits in the two to three carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by IGI LG436045078 or 436045078. Listed at 6 retailers as of October 29, 2026, with prices from £2,184 to £6,147, a £3,963 spread on the same certified stone. MOH London lists it at £6,147. 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

2.15
Carat
I
Colour
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.1°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG436045078
Dimensions7.59 × 7.34 × 4.95 mm
L/W Ratio1.03
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
7.59 mm7.34 mm2.15 ctI / SI1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG436045078
Side View
Table 58.5%Crown 33.1°Girdle: THK-VTKPavilion 40°Culet: NoneDepth 67.4%

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: Oct 31
Current: £6,147 GBP|Low: £2,184 GBP|High: £8,632 GBP|Avg: £3,739 GBP|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 29, 2026
Retailer 7£2,184 GBP
Retailer 4£2,328 GBP
Retailer 2£2,412 GBP
Retailer 9£2,417 GBP
Retailer 5£2,530 GBP
Retailer 6£2,915 GBP
Retailer 3£3,753 GBP
MOH London£6,147 GBP
Retailer 8£8,632 GBP

11 data points across 9 retailers

6 retailers£2,184 GBP to £6,147 GBP

B+
Cheapest Retailer
-
£2,184 GBP
$2,926 USD
B+
Retailer 2
-
£2,328 GBP
$3,119 USD
View
Final sale: no returns
Retailer 3
-
£2,412 GBP
$3,232 USD
View
Price last confirmed 19 days ago
B
Retailer 4
-
£2,530 GBP
$3,390 USD
View
B
Retailer 5
-
£3,753 GBP
$5,028 USD
View
Most Expensive
C
MOH London
LG436045078 · Oct 29
£6,147 GBP
View
5 more retailers have this diamond
Prices start from £2,184 GBPSave up to £3,963 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+
2.15ct Cushion
£2,184 GBP