Cushion|Lab Grown|IGI

20.13ct E VS2 Cushion Lab Grown Diamond

VG • E/VS2 • IGI LG705513520

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG705513520

Diamond specifications and retailer prices

From £5,544 GBP
$7,428 USD
As of October 31, 2026
Save £21,824 GBP (80%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £27,368 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 20.13ct lab-grown cushion diamond

This 20.13ct lab-grown cushion sits in the over five carat band, graded E colour (colourless) and VS2 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG705513520 or 705513520. Listed at 12 retailers as of October 31, 2026, with prices from £5,544 to £27,368, a £21,824 spread on the same certified stone. Brilliant Earth lists it at £27,368. 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

20.13
Carat
E
Colour
VS2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.9°
Pavilion angle29.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG705513520
Dimensions15.33 × 14.78 × 9.57 mm
L/W Ratio1.04
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
15.33 mm14.78 mm20.13 ctE / VS2
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG705513520
Side View
Table 63.0%Crown 41.9°Girdle: VTK-ETKPavilion 29.8°Culet: NoneDepth 64.7%

Caratlytics Score

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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 31
Current: £27,368 GBP|Low: £4,385 GBP|High: £28,219 GBP|Avg: £11,678 GBP|-3.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 1, 2026
Retailer 8£5,544 GBP
Retailer 10£5,654 GBP
Retailer 3£5,742 GBP
Retailer 6£5,743 GBP
Retailer 7£6,656 GBP
Retailer 2£7,216 GBP
Retailer 9£8,176 GBP
Retailer 5£10,673 GBP
Retailer 11£15,981 GBP
Retailer 4£19,738 GBP
Retailer 12£21,907 GBP
Brilliant Earth£27,368 GBP

42 data points across 12 retailers

12 retailers£5,544 GBP to £27,368 GBP

A
Cheapest Retailer
-
£5,544 GBP
$7,428 USD
Final sale: no returns
A
Retailer 2
-
£5,654 GBP
$7,576 USD
View
Retailer 3
-
£5,742 GBP
$7,694 USD
View
Price last confirmed 19 days ago
A
Retailer 4
-
£5,743 GBP
$7,695 USD
View
Retailer 5
-
£6,656 GBP
$8,918 USD
View
Price last confirmed 8 days ago
A
Retailer 6
-
£7,216 GBP
View
Retailer 7
-
£8,176 GBP
$10,955 USD
View
Price last confirmed 13 days ago
B+
Retailer 8
-
£10,673 GBP
€13,620 EUR
View
B
Retailer 9
-
£15,981 GBP
$21,413 USD
View
B
Retailer 10
-
£19,738 GBP
$26,447 USD
View
B
Retailer 11
-
£21,907 GBP
$29,353 USD
View
Most Expensive
B
Brilliant Earth
16412146A · Oct 31
£27,368 GBP
$36,670 USD
View
11 more retailers have this diamond
Prices start from £5,544 GBPSave up to £21,824 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
20.13ct Cushion
£5,544 GBP