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Cushion|Lab Grown|IGI

3.53ct E IF Cushion Lab Grown Diamond

VG • E/IF • IGI LG749509321

Shape and cutting style on the report: Cushion antique brilliant

Certificate IGI LG749509321

Diamond specifications and retailer prices

From £2,977 GBP
$3,989 USD
As of October 30, 2026
Save £12,922 GBP (81%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £23,927 GBP at Do Amore Diamonds · As of October 30, 2026
View at Do Amore Diamonds

About this 3.53ct lab-grown cushion diamond

This 3.53ct lab-grown cushion sits in the three to five carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG749509321 or 749509321. Listed at 15 retailers as of October 30, 2026, with a 434% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

3.53
Carat
E
Colour
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.3°
Pavilion angle38.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG749509321
Dimensions10.82 × 7.78 × 5.06 mm
L/W Ratio1.39
Girdle conditionFaceted
Culet sizeLarge
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
10.82 mm7.78 mm3.53 ctE / IF
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG749509321
Side View
Table 56.0%Crown 42.3°Girdle: STK-THKPavilion 38.5°Culet: LargeDepth 65.0%

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 30
Current: £23,927 GBP|Low: £2,781 GBP|High: £23,927 GBP|Avg: £8,488 GBP
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
October 29, 2026
Retailer 5£2,977 GBP
Retailer 16£3,824 GBP
Retailer 3£3,894 GBP
Retailer 14£4,034 GBP
Retailer 13£4,060 GBP
Retailer 8£4,994 GBP
Retailer 12£6,237 GBP
Retailer 4£6,290 GBP
Retailer 9£6,964 GBP
Retailer 10£9,077 GBP
Retailer 15£10,207 GBP
Retailer 11£10,298 GBP
Retailer 2£10,302 GBP
Retailer 6£11,604 GBP
Retailer 7£15,899 GBP
Do Amore Diamonds£23,927 GBP

33 data points across 16 retailers

15 retailers£2,977 GBP to £15,899 GBP

A
Cheapest Retailer
-
£2,977 GBP
$3,989 USD
B+
Retailer 2
-
£3,824 GBP
$5,124 USD
View
B+
Retailer 3
-
£3,894 GBP
$5,218 USD
View
Final sale: no returns
Retailer 4
-
£4,034 GBP
$5,405 USD
View
Price last confirmed 14 days ago
B+
Retailer 5
-
£4,060 GBP
$5,440 USD
View
Retailer 6
-
£6,237 GBP
$8,357 USD
View
Price last confirmed 7 days ago
B+
Retailer 7
-
£6,290 GBP
View
B
Retailer 8
-
£6,964 GBP
€8,887 EUR
View
B
Retailer 9
-
£9,077 GBP
View
B
Retailer 10
-
£10,207 GBP
$13,676 USD
View
Retailer 11
-
£10,298 GBP
A$21,227 AUD
View
Price last confirmed 7 days ago
B
Retailer 12
-
£10,302 GBP
ZAR 222,996 ZAR
View
B
Retailer 13
-
£11,604 GBP
$15,549 USD
View
B
Retailer 14
-
£15,899 GBP
$21,303 USD
View
Most Expensive
Do Amore Diamonds
27-491BC7B84 · Oct 30
£23,927 GBP
$32,060 USD
View
Price under review
14 more retailers have this diamond
Prices start from £2,977 GBPSave up to £12,922 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
3.53ct Cushion
£2,977 GBP