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Cushion|Lab Grown|IGI

2.05ct D SI1 Cushion Lab Grown Diamond

ID • D/SI1 • IGI LG641496146

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG641496146

Diamond specifications and retailer prices

From £251 GBP
$336 USD
As of October 31, 2026
Save £879 GBP (78%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £1,130 GBP at Reve Diamonds · As of October 30, 2026
View at Reve Diamonds

About this 2.05ct lab-grown cushion diamond

This 2.05ct 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 LG641496146 or 641496146. Listed at 11 retailers as of October 30, 2026, with prices from £251 to £1,130, a £879 spread on the same certified stone. Reve Diamonds lists it at £1,130. 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

2.05
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.8°
Pavilion angle39.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG641496146
Dimensions7.46 × 7.44 × 4.83 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.46 mm7.44 mm2.05 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG641496146
Side View
Table 60.0%Crown 33.8°Girdle: MED-THKPavilion 39.3°Culet: NoneDepth 64.9%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: £489 GBP|Low: £251 GBP|High: £1,784 GBP|Avg: £746 GBP|+7.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Reve Diamonds
October 31, 2026
Retailer 12£251 GBP
Retailer 7£342 GBP
Retailer 8£422 GBP
Retailer 10£454 GBP
Retailer 1£489 GBP
Retailer 11£540 GBP
Retailer 9£543 GBP
Retailer 4£854 GBP
Retailer 2£929 GBP
Retailer 6£970 GBP
Retailer 5£1,116 GBP
Reve Diamonds£1,130 GBP
Retailer 3£1,784 GBP

20 data points across 13 retailers

11 retailers£251 GBP to £1,130 GBP

A
Cheapest Retailer
-
£251 GBP
$336 USD
Final sale: no returns
Retailer 2
-
£342 GBP
View
Price last confirmed 14 days ago
A
Retailer 3
-
£422 GBP
$565 USD
View
B+
Retailer 4
-
£454 GBP
$608 USD
View
A
Retailer 5
-
£489 GBP
View
A
Retailer 6
-
£540 GBP
$723 USD
View
A
Retailer 7
-
£543 GBP
$728 USD
View
B+
Retailer 8
-
£929 GBP
$1,245 USD
View
B+
Retailer 9
-
£970 GBP
$1,300 USD
View
B
Retailer 10
-
£1,116 GBP
View
Most Expensive
B
Reve Diamonds
84C0CB58B · Oct 30
£1,130 GBP
$1,514 USD
View
10 more retailers have this diamond
Prices start from £251 GBPSave up to £879 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
2.05ct Cushion
£251 GBP