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Cushion|Lab Grown|IGI

1.29ct E IF Cushion Lab Grown Diamond

ID • E/IF • IGI LG733535028

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG733535028

Diamond specifications and retailer prices

From £251 GBP
$336 USD
As of October 30, 2026
Save £1,742 GBP (87%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £1,993 GBP at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 1.29ct lab-grown cushion diamond

This 1.29ct lab-grown cushion sits in the one-and-a-quarter to one-and-a-half carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG733535028 or 733535028. Listed at 9 retailers as of October 29, 2026, with prices from £251 to £1,993, a £1,742 spread on the same certified stone. Do Amore Diamonds lists it at £1,993. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.29
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle39.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG733535028
Dimensions7.02 × 5.99 × 3.97 mm
L/W Ratio1.17
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
7.02 mm5.99 mm1.29 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG733535028
Side View
Table 62.0%Crown 35°Girdle: MED-THKPavilion 39.3°Culet: NoneDepth 66.3%

Caratlytics Score

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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: £1,993 GBP|Low: £251 GBP|High: £1,993 GBP|Avg: £864 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
October 28, 2026
Retailer 12£251 GBP
Retailer 9£278 GBP
Retailer 8£371 GBP
Retailer 2£373 GBP
Retailer 14£497 GBP
Retailer 13£522 GBP
Retailer 7£761 GBP
Retailer 3£818 GBP
Retailer 6£830 GBP
Retailer 10£911 GBP
Retailer 5£955 GBP
Retailer 11£1,284 GBP
Retailer 4£1,822 GBP
Do Amore Diamonds£1,993 GBP

14 data points across 14 retailers

9 retailers£251 GBP to £1,993 GBP

A
Cheapest Retailer
-
£251 GBP
$336 USD
Final sale: no returns
Retailer 2
-
£278 GBP
$373 USD
View
Price last confirmed 18 days ago
A
Retailer 3
-
£371 GBP
$497 USD
View
A
Retailer 4
-
£373 GBP
$500 USD
View
A
Retailer 5
-
£522 GBP
$700 USD
View
Retailer 6
-
£761 GBP
$1,020 USD
View
Price last confirmed 7 days ago
Retailer 7
-
£911 GBP
$1,220 USD
View
Price last confirmed 16 days ago
Retailer 8
-
£1,284 GBP
$1,720 USD
View
Price last confirmed 12 days ago
Most Expensive
B
Do Amore Diamonds
27-8751201EF · Oct 29
£1,993 GBP
$2,670 USD
View
8 more retailers have this diamond
Prices start from £251 GBPSave up to £1,742 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
1.29ct Cushion
£251 GBP