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Cushion|Lab Grown|IGI

2.09ct D SI1 Cushion Lab Grown Diamond

ID • D/SI1 • IGI LG668429877

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG668429877

Diamond specifications and retailer prices

From £1,299 GBP
$1,740 USD
As of October 31, 2026
1 retailer carries this diamond
Only listing: £1,299 GBP at Brilliant Earth
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at Brilliant Earth

About this 2.09ct lab-grown cushion diamond

This 2.09ct lab-grown cushion sits in the two to three carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG668429877 or 668429877. Listed at a single retailer as of October 31, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

2.09
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.7°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG668429877
Dimensions8.56 × 6.87 × 4.77 mm
L/W Ratio1.25
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
8.56 mm6.87 mm2.09 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG668429877
Side View
Table 60.0%Crown 33.7°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 69.4%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 31
Current: £1,299 GBP|Low: £185 GBP|High: £1,299 GBP|Avg: £644 GBP
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
September 26, 2026
Retailer 6£260 GBP
Retailer 8£437 GBP
Retailer 7£452 GBP
Retailer 3£458 GBP
Retailer 2£508 GBP
Retailer 4£555 GBP
Retailer 9£560 GBP
Retailer 10£963 GBP
Retailer 5£1,157 GBP
Brilliant Earth£1,299 GBP

8 data points across 10 retailers

1 retailer

B
Brilliant Earth
12434022A · Oct 31
£1,299 GBP
$1,740 USD
View

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B
2.09ct Cushion
£1,299 GBP